./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:09,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:09,657 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:58:09,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:09,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:09,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:09,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:09,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:09,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:09,685 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:09,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:09,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:09,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:09,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:09,687 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:09,687 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:09,687 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:09,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:09,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:09,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:09,687 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:09,688 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:09,688 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:09,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:09,688 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:09,688 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:09,688 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:09,688 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:09,688 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:09,688 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:09,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:09,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:09,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:09,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:09,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:09,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:09,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:58:09,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:58:09,690 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:09,690 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:09,690 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:09,690 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:09,690 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2025-03-04 09:58:09,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:09,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:09,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:09,940 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:09,940 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:09,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-03-04 09:58:11,105 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e113f62/8d88759c3f8846039bc7d5707039fa70/FLAGb7efba163 [2025-03-04 09:58:11,360 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:11,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2025-03-04 09:58:11,371 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e113f62/8d88759c3f8846039bc7d5707039fa70/FLAGb7efba163 [2025-03-04 09:58:11,385 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e113f62/8d88759c3f8846039bc7d5707039fa70 [2025-03-04 09:58:11,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:11,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:11,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:11,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:11,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:11,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1067fd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11, skipping insertion in model container [2025-03-04 09:58:11,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:11,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:11,725 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:58:11,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:11,810 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:58:11,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11 WrapperNode [2025-03-04 09:58:11,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:11,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:11,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:58:11,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:58:11,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,846 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 169 [2025-03-04 09:58:11,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:11,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:58:11,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:58:11,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:58:11,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,859 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,881 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]. [2025-03-04 09:58:11,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,893 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,898 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:58:11,909 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:58:11,909 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:58:11,909 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:58:11,910 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (1/1) ... [2025-03-04 09:58:11,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:11,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:11,932 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) [2025-03-04 09:58:11,935 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 [2025-03-04 09:58:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:58:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:58:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:58:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:58:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:58:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:58:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:58:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:58:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:58:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:58:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:58:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:58:11,951 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:58:12,033 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:58:12,034 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:58:12,362 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:58:12,363 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:58:12,594 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:58:12,595 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:58:12,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:12 BoogieIcfgContainer [2025-03-04 09:58:12,595 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:58:12,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:58:12,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:58:12,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:58:12,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:58:11" (1/3) ... [2025-03-04 09:58:12,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72130f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:12, skipping insertion in model container [2025-03-04 09:58:12,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:11" (2/3) ... [2025-03-04 09:58:12,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72130f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:12, skipping insertion in model container [2025-03-04 09:58:12,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:12" (3/3) ... [2025-03-04 09:58:12,603 INFO L128 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2025-03-04 09:58:12,621 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:58:12,624 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe035_power.i that has 4 procedures, 46 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-03-04 09:58:12,624 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:58:12,694 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:58:12,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 47 transitions, 106 flow [2025-03-04 09:58:12,751 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2025-03-04 09:58:12,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:12,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 44 events. 2/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2025-03-04 09:58:12,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 47 transitions, 106 flow [2025-03-04 09:58:12,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 44 transitions, 97 flow [2025-03-04 09:58:12,770 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:58:12,779 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;@3814e76d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:58:12,780 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-04 09:58:12,784 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:58:12,784 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2025-03-04 09:58:12,784 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:12,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:12,785 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:12,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:12,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash 812206966, now seen corresponding path program 1 times [2025-03-04 09:58:12,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:12,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354128007] [2025-03-04 09:58:12,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:12,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:12,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 09:58:12,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 09:58:12,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:12,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:13,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:13,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354128007] [2025-03-04 09:58:13,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354128007] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:13,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:13,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:58:13,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241413028] [2025-03-04 09:58:13,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:13,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:13,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:13,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:13,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:13,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:13,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2025-03-04 09:58:13,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:13,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:13,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:14,719 INFO L124 PetriNetUnfolderBase]: 8658/12406 cut-off events. [2025-03-04 09:58:14,720 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-03-04 09:58:14,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24726 conditions, 12406 events. 8658/12406 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 69086 event pairs, 972 based on Foata normal form. 686/13081 useless extension candidates. Maximal degree in co-relation 24715. Up to 10627 conditions per place. [2025-03-04 09:58:14,791 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 50 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2025-03-04 09:58:14,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 61 transitions, 239 flow [2025-03-04 09:58:14,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:14,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2025-03-04 09:58:14,804 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6312056737588653 [2025-03-04 09:58:14,806 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 97 flow. Second operand 3 states and 89 transitions. [2025-03-04 09:58:14,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 61 transitions, 239 flow [2025-03-04 09:58:14,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 236 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:14,814 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 88 flow [2025-03-04 09:58:14,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2025-03-04 09:58:14,820 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2025-03-04 09:58:14,820 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 88 flow [2025-03-04 09:58:14,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2025-03-04 09:58:14,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:14,820 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:14,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:58:14,821 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:14,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:14,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1141359809, now seen corresponding path program 1 times [2025-03-04 09:58:14,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:14,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142977582] [2025-03-04 09:58:14,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:14,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:14,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:14,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:14,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:14,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:14,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:14,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142977582] [2025-03-04 09:58:14,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142977582] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:14,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:14,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:58:14,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742441197] [2025-03-04 09:58:14,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:14,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:14,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:14,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:14,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:14,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-03-04 09:58:14,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-03-04 09:58:14,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:14,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-03-04 09:58:14,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:16,108 INFO L124 PetriNetUnfolderBase]: 7776/11818 cut-off events. [2025-03-04 09:58:16,108 INFO L125 PetriNetUnfolderBase]: For 441/441 co-relation queries the response was YES. [2025-03-04 09:58:16,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23353 conditions, 11818 events. 7776/11818 cut-off events. For 441/441 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 71416 event pairs, 7776 based on Foata normal form. 343/12101 useless extension candidates. Maximal degree in co-relation 23343. Up to 10976 conditions per place. [2025-03-04 09:58:16,153 INFO L140 encePairwiseOnDemand]: 45/47 looper letters, 30 selfloop transitions, 1 changer transitions 1/38 dead transitions. [2025-03-04 09:58:16,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 150 flow [2025-03-04 09:58:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:16,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-03-04 09:58:16,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.425531914893617 [2025-03-04 09:58:16,156 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 88 flow. Second operand 3 states and 60 transitions. [2025-03-04 09:58:16,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 150 flow [2025-03-04 09:58:16,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:16,160 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 82 flow [2025-03-04 09:58:16,161 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2025-03-04 09:58:16,161 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2025-03-04 09:58:16,162 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 82 flow [2025-03-04 09:58:16,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-03-04 09:58:16,162 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:16,162 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:16,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:58:16,162 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:16,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:16,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1141359401, now seen corresponding path program 1 times [2025-03-04 09:58:16,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:16,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92510320] [2025-03-04 09:58:16,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:16,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:16,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:16,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:16,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:16,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:16,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:16,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92510320] [2025-03-04 09:58:16,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92510320] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:16,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:16,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:58:16,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233949672] [2025-03-04 09:58:16,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:16,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:16,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:16,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:16,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:16,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:16,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-03-04 09:58:16,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:16,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:16,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:17,088 INFO L124 PetriNetUnfolderBase]: 5308/8421 cut-off events. [2025-03-04 09:58:17,088 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:17,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16297 conditions, 8421 events. 5308/8421 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 51063 event pairs, 994 based on Foata normal form. 343/8753 useless extension candidates. Maximal degree in co-relation 16291. Up to 4351 conditions per place. [2025-03-04 09:58:17,118 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 64 selfloop transitions, 5 changer transitions 1/76 dead transitions. [2025-03-04 09:58:17,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 76 transitions, 304 flow [2025-03-04 09:58:17,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2025-03-04 09:58:17,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5957446808510638 [2025-03-04 09:58:17,120 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 82 flow. Second operand 4 states and 112 transitions. [2025-03-04 09:58:17,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 76 transitions, 304 flow [2025-03-04 09:58:17,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 76 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:58:17,122 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 115 flow [2025-03-04 09:58:17,122 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2025-03-04 09:58:17,122 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2025-03-04 09:58:17,122 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 115 flow [2025-03-04 09:58:17,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-03-04 09:58:17,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:17,123 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:17,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:58:17,123 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:17,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:17,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2055532008, now seen corresponding path program 1 times [2025-03-04 09:58:17,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:17,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485240958] [2025-03-04 09:58:17,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:17,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:17,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 09:58:17,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 09:58:17,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:17,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:17,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:17,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485240958] [2025-03-04 09:58:17,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485240958] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:17,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:17,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:17,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707099547] [2025-03-04 09:58:17,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:17,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:17,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:17,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:17,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:17,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:17,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-03-04 09:58:17,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:17,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:17,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:17,898 INFO L124 PetriNetUnfolderBase]: 2833/4471 cut-off events. [2025-03-04 09:58:17,899 INFO L125 PetriNetUnfolderBase]: For 777/777 co-relation queries the response was YES. [2025-03-04 09:58:17,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10062 conditions, 4471 events. 2833/4471 cut-off events. For 777/777 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 23069 event pairs, 651 based on Foata normal form. 218/4678 useless extension candidates. Maximal degree in co-relation 10053. Up to 1515 conditions per place. [2025-03-04 09:58:17,920 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 82 selfloop transitions, 8 changer transitions 1/97 dead transitions. [2025-03-04 09:58:17,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 97 transitions, 432 flow [2025-03-04 09:58:17,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:58:17,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:58:17,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 143 transitions. [2025-03-04 09:58:17,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6085106382978723 [2025-03-04 09:58:17,922 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 115 flow. Second operand 5 states and 143 transitions. [2025-03-04 09:58:17,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 97 transitions, 432 flow [2025-03-04 09:58:17,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 422 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:17,925 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 155 flow [2025-03-04 09:58:17,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2025-03-04 09:58:17,926 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2025-03-04 09:58:17,926 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 155 flow [2025-03-04 09:58:17,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-03-04 09:58:17,927 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:17,927 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:17,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:58:17,927 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:17,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -966217367, now seen corresponding path program 1 times [2025-03-04 09:58:17,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:17,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433914279] [2025-03-04 09:58:17,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:17,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:17,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:58:18,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:58:18,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:18,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:18,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:18,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433914279] [2025-03-04 09:58:18,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433914279] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:18,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:18,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:18,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153351850] [2025-03-04 09:58:18,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:18,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:18,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:18,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:18,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:18,429 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:18,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2025-03-04 09:58:18,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:18,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:18,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:18,920 INFO L124 PetriNetUnfolderBase]: 1798/2746 cut-off events. [2025-03-04 09:58:18,920 INFO L125 PetriNetUnfolderBase]: For 1462/1462 co-relation queries the response was YES. [2025-03-04 09:58:18,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6714 conditions, 2746 events. 1798/2746 cut-off events. For 1462/1462 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12496 event pairs, 594 based on Foata normal form. 68/2803 useless extension candidates. Maximal degree in co-relation 6703. Up to 1050 conditions per place. [2025-03-04 09:58:18,933 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 68 selfloop transitions, 11 changer transitions 1/86 dead transitions. [2025-03-04 09:58:18,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 86 transitions, 411 flow [2025-03-04 09:58:18,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:18,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2025-03-04 09:58:18,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5035460992907801 [2025-03-04 09:58:18,935 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 155 flow. Second operand 6 states and 142 transitions. [2025-03-04 09:58:18,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 86 transitions, 411 flow [2025-03-04 09:58:18,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 86 transitions, 386 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:18,947 INFO L231 Difference]: Finished difference. Result has 57 places, 43 transitions, 169 flow [2025-03-04 09:58:18,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=57, PETRI_TRANSITIONS=43} [2025-03-04 09:58:18,949 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 5 predicate places. [2025-03-04 09:58:18,950 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 169 flow [2025-03-04 09:58:18,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2025-03-04 09:58:18,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:18,950 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:18,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:58:18,950 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:18,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:18,953 INFO L85 PathProgramCache]: Analyzing trace with hash -743451829, now seen corresponding path program 1 times [2025-03-04 09:58:18,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:18,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936162322] [2025-03-04 09:58:18,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:18,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:18,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:19,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:19,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:19,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:22,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:22,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936162322] [2025-03-04 09:58:22,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936162322] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:22,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:22,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-04 09:58:22,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514606922] [2025-03-04 09:58:22,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:22,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 09:58:22,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:22,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 09:58:22,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2025-03-04 09:58:22,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:22,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 169 flow. Second operand has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 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) [2025-03-04 09:58:22,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:22,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:22,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:24,060 INFO L124 PetriNetUnfolderBase]: 2969/4516 cut-off events. [2025-03-04 09:58:24,060 INFO L125 PetriNetUnfolderBase]: For 2884/2884 co-relation queries the response was YES. [2025-03-04 09:58:24,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11170 conditions, 4516 events. 2969/4516 cut-off events. For 2884/2884 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 22275 event pairs, 126 based on Foata normal form. 8/4517 useless extension candidates. Maximal degree in co-relation 11158. Up to 2011 conditions per place. [2025-03-04 09:58:24,073 INFO L140 encePairwiseOnDemand]: 34/47 looper letters, 70 selfloop transitions, 5 changer transitions 91/172 dead transitions. [2025-03-04 09:58:24,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 172 transitions, 991 flow [2025-03-04 09:58:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 09:58:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-04 09:58:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 273 transitions. [2025-03-04 09:58:24,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44680851063829785 [2025-03-04 09:58:24,075 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 169 flow. Second operand 13 states and 273 transitions. [2025-03-04 09:58:24,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 172 transitions, 991 flow [2025-03-04 09:58:24,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 172 transitions, 778 flow, removed 20 selfloop flow, removed 8 redundant places. [2025-03-04 09:58:24,086 INFO L231 Difference]: Finished difference. Result has 71 places, 46 transitions, 168 flow [2025-03-04 09:58:24,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=168, PETRI_PLACES=71, PETRI_TRANSITIONS=46} [2025-03-04 09:58:24,087 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 19 predicate places. [2025-03-04 09:58:24,087 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 46 transitions, 168 flow [2025-03-04 09:58:24,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 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) [2025-03-04 09:58:24,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:24,087 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:24,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:58:24,087 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:24,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:24,088 INFO L85 PathProgramCache]: Analyzing trace with hash -493738033, now seen corresponding path program 2 times [2025-03-04 09:58:24,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:24,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602156617] [2025-03-04 09:58:24,088 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:58:24,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:24,099 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:24,215 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:24,215 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:58:24,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:25,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:25,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:25,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602156617] [2025-03-04 09:58:25,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602156617] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:25,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:25,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 09:58:25,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430066651] [2025-03-04 09:58:25,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:25,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 09:58:25,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:25,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 09:58:25,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-04 09:58:25,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:25,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 46 transitions, 168 flow. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 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) [2025-03-04 09:58:25,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:25,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:25,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:26,248 INFO L124 PetriNetUnfolderBase]: 2474/3801 cut-off events. [2025-03-04 09:58:26,249 INFO L125 PetriNetUnfolderBase]: For 2557/2557 co-relation queries the response was YES. [2025-03-04 09:58:26,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10514 conditions, 3801 events. 2474/3801 cut-off events. For 2557/2557 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 18131 event pairs, 394 based on Foata normal form. 8/3805 useless extension candidates. Maximal degree in co-relation 10496. Up to 2235 conditions per place. [2025-03-04 09:58:26,266 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 58 selfloop transitions, 6 changer transitions 45/115 dead transitions. [2025-03-04 09:58:26,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 115 transitions, 623 flow [2025-03-04 09:58:26,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:58:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:58:26,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2025-03-04 09:58:26,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4601063829787234 [2025-03-04 09:58:26,268 INFO L175 Difference]: Start difference. First operand has 71 places, 46 transitions, 168 flow. Second operand 8 states and 173 transitions. [2025-03-04 09:58:26,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 115 transitions, 623 flow [2025-03-04 09:58:26,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 115 transitions, 604 flow, removed 7 selfloop flow, removed 6 redundant places. [2025-03-04 09:58:26,279 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 196 flow [2025-03-04 09:58:26,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=196, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2025-03-04 09:58:26,280 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2025-03-04 09:58:26,280 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 196 flow [2025-03-04 09:58:26,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 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) [2025-03-04 09:58:26,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:26,280 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:26,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:58:26,280 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:26,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1040376333, now seen corresponding path program 3 times [2025-03-04 09:58:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:26,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681803202] [2025-03-04 09:58:26,281 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 09:58:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:26,290 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:26,392 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:26,392 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 09:58:26,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:26,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:26,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681803202] [2025-03-04 09:58:26,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681803202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:26,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:26,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:58:26,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030127581] [2025-03-04 09:58:26,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:26,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:26,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:26,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:26,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:26,590 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:26,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:26,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:26,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:26,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:27,076 INFO L124 PetriNetUnfolderBase]: 2298/3531 cut-off events. [2025-03-04 09:58:27,076 INFO L125 PetriNetUnfolderBase]: For 2404/2404 co-relation queries the response was YES. [2025-03-04 09:58:27,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9893 conditions, 3531 events. 2298/3531 cut-off events. For 2404/2404 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16599 event pairs, 556 based on Foata normal form. 8/3532 useless extension candidates. Maximal degree in co-relation 9874. Up to 2210 conditions per place. [2025-03-04 09:58:27,088 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 53 selfloop transitions, 2 changer transitions 36/97 dead transitions. [2025-03-04 09:58:27,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 97 transitions, 545 flow [2025-03-04 09:58:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:27,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2025-03-04 09:58:27,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2025-03-04 09:58:27,091 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 196 flow. Second operand 6 states and 132 transitions. [2025-03-04 09:58:27,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 97 transitions, 545 flow [2025-03-04 09:58:27,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 97 transitions, 530 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:27,094 INFO L231 Difference]: Finished difference. Result has 70 places, 48 transitions, 191 flow [2025-03-04 09:58:27,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=70, PETRI_TRANSITIONS=48} [2025-03-04 09:58:27,095 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 18 predicate places. [2025-03-04 09:58:27,095 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 48 transitions, 191 flow [2025-03-04 09:58:27,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:27,095 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:27,095 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:27,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:58:27,096 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:27,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:27,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1088511547, now seen corresponding path program 4 times [2025-03-04 09:58:27,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:27,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315246980] [2025-03-04 09:58:27,096 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 09:58:27,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:27,111 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 33 statements into 2 equivalence classes. [2025-03-04 09:58:27,244 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:27,244 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 09:58:27,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:29,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:29,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315246980] [2025-03-04 09:58:29,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315246980] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:29,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:29,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 09:58:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110266667] [2025-03-04 09:58:29,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:29,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 09:58:29,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:29,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 09:58:29,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-03-04 09:58:29,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:29,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 48 transitions, 191 flow. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 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) [2025-03-04 09:58:29,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:29,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:29,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:30,224 INFO L124 PetriNetUnfolderBase]: 3007/4656 cut-off events. [2025-03-04 09:58:30,224 INFO L125 PetriNetUnfolderBase]: For 3899/3899 co-relation queries the response was YES. [2025-03-04 09:58:30,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12912 conditions, 4656 events. 3007/4656 cut-off events. For 3899/3899 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 24133 event pairs, 356 based on Foata normal form. 8/4661 useless extension candidates. Maximal degree in co-relation 12892. Up to 1804 conditions per place. [2025-03-04 09:58:30,240 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 59 selfloop transitions, 11 changer transitions 60/136 dead transitions. [2025-03-04 09:58:30,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 136 transitions, 788 flow [2025-03-04 09:58:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:58:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:58:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 202 transitions. [2025-03-04 09:58:30,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47754137115839246 [2025-03-04 09:58:30,242 INFO L175 Difference]: Start difference. First operand has 70 places, 48 transitions, 191 flow. Second operand 9 states and 202 transitions. [2025-03-04 09:58:30,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 136 transitions, 788 flow [2025-03-04 09:58:30,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 136 transitions, 759 flow, removed 10 selfloop flow, removed 5 redundant places. [2025-03-04 09:58:30,248 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 264 flow [2025-03-04 09:58:30,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2025-03-04 09:58:30,249 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 23 predicate places. [2025-03-04 09:58:30,249 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 264 flow [2025-03-04 09:58:30,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 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) [2025-03-04 09:58:30,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:30,250 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:30,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:58:30,250 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:30,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:30,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1444182941, now seen corresponding path program 5 times [2025-03-04 09:58:30,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:30,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299206381] [2025-03-04 09:58:30,252 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 09:58:30,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:30,262 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:30,351 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:30,352 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:58:30,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:31,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:31,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:31,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299206381] [2025-03-04 09:58:31,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299206381] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:31,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:31,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 09:58:31,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526180820] [2025-03-04 09:58:31,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:31,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 09:58:31,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:31,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 09:58:31,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 09:58:31,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:31,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 264 flow. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 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) [2025-03-04 09:58:31,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:31,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:31,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:32,109 INFO L124 PetriNetUnfolderBase]: 4130/6601 cut-off events. [2025-03-04 09:58:32,109 INFO L125 PetriNetUnfolderBase]: For 8347/8347 co-relation queries the response was YES. [2025-03-04 09:58:32,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20550 conditions, 6601 events. 4130/6601 cut-off events. For 8347/8347 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 38374 event pairs, 1106 based on Foata normal form. 8/6606 useless extension candidates. Maximal degree in co-relation 20528. Up to 2683 conditions per place. [2025-03-04 09:58:32,133 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 51 selfloop transitions, 10 changer transitions 75/142 dead transitions. [2025-03-04 09:58:32,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 142 transitions, 911 flow [2025-03-04 09:58:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:58:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:58:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 191 transitions. [2025-03-04 09:58:32,136 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4515366430260047 [2025-03-04 09:58:32,136 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 264 flow. Second operand 9 states and 191 transitions. [2025-03-04 09:58:32,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 142 transitions, 911 flow [2025-03-04 09:58:32,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 142 transitions, 875 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-03-04 09:58:32,147 INFO L231 Difference]: Finished difference. Result has 80 places, 54 transitions, 279 flow [2025-03-04 09:58:32,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=279, PETRI_PLACES=80, PETRI_TRANSITIONS=54} [2025-03-04 09:58:32,148 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 28 predicate places. [2025-03-04 09:58:32,148 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 54 transitions, 279 flow [2025-03-04 09:58:32,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 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) [2025-03-04 09:58:32,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:32,148 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:32,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 09:58:32,148 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:32,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:32,149 INFO L85 PathProgramCache]: Analyzing trace with hash -757004621, now seen corresponding path program 6 times [2025-03-04 09:58:32,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:32,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084912295] [2025-03-04 09:58:32,149 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 09:58:32,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:32,157 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:32,243 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:32,243 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 09:58:32,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:33,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:33,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084912295] [2025-03-04 09:58:33,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084912295] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:33,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:33,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 09:58:33,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20557620] [2025-03-04 09:58:33,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:33,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 09:58:33,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:33,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 09:58:33,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-04 09:58:33,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:33,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 54 transitions, 279 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-03-04 09:58:33,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:33,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:33,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:33,955 INFO L124 PetriNetUnfolderBase]: 2191/3537 cut-off events. [2025-03-04 09:58:33,955 INFO L125 PetriNetUnfolderBase]: For 6625/6625 co-relation queries the response was YES. [2025-03-04 09:58:33,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12155 conditions, 3537 events. 2191/3537 cut-off events. For 6625/6625 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 18233 event pairs, 897 based on Foata normal form. 8/3536 useless extension candidates. Maximal degree in co-relation 12131. Up to 1880 conditions per place. [2025-03-04 09:58:33,964 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 54 selfloop transitions, 10 changer transitions 51/121 dead transitions. [2025-03-04 09:58:33,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 121 transitions, 825 flow [2025-03-04 09:58:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:58:33,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:58:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 182 transitions. [2025-03-04 09:58:33,966 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4302600472813239 [2025-03-04 09:58:33,966 INFO L175 Difference]: Start difference. First operand has 80 places, 54 transitions, 279 flow. Second operand 9 states and 182 transitions. [2025-03-04 09:58:33,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 121 transitions, 825 flow [2025-03-04 09:58:33,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 121 transitions, 743 flow, removed 33 selfloop flow, removed 9 redundant places. [2025-03-04 09:58:33,979 INFO L231 Difference]: Finished difference. Result has 79 places, 56 transitions, 296 flow [2025-03-04 09:58:33,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=296, PETRI_PLACES=79, PETRI_TRANSITIONS=56} [2025-03-04 09:58:33,980 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 27 predicate places. [2025-03-04 09:58:33,980 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 56 transitions, 296 flow [2025-03-04 09:58:33,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-03-04 09:58:33,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:33,980 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:33,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 09:58:33,980 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:33,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash 559384405, now seen corresponding path program 7 times [2025-03-04 09:58:33,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:33,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600163768] [2025-03-04 09:58:33,981 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 09:58:33,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:33,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:34,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:34,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:34,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:36,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:36,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:36,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600163768] [2025-03-04 09:58:36,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600163768] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:36,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:36,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 09:58:36,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310651226] [2025-03-04 09:58:36,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:36,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 09:58:36,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:36,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 09:58:36,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-04 09:58:36,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:36,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 56 transitions, 296 flow. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 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) [2025-03-04 09:58:36,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:36,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:36,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:36,871 INFO L124 PetriNetUnfolderBase]: 2065/3363 cut-off events. [2025-03-04 09:58:36,871 INFO L125 PetriNetUnfolderBase]: For 6574/6574 co-relation queries the response was YES. [2025-03-04 09:58:36,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11327 conditions, 3363 events. 2065/3363 cut-off events. For 6574/6574 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 17303 event pairs, 642 based on Foata normal form. 8/3362 useless extension candidates. Maximal degree in co-relation 11305. Up to 1385 conditions per place. [2025-03-04 09:58:36,883 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 38 selfloop transitions, 4 changer transitions 75/123 dead transitions. [2025-03-04 09:58:36,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 123 transitions, 835 flow [2025-03-04 09:58:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:58:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:58:36,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 175 transitions. [2025-03-04 09:58:36,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4654255319148936 [2025-03-04 09:58:36,885 INFO L175 Difference]: Start difference. First operand has 79 places, 56 transitions, 296 flow. Second operand 8 states and 175 transitions. [2025-03-04 09:58:36,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 123 transitions, 835 flow [2025-03-04 09:58:36,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 123 transitions, 793 flow, removed 14 selfloop flow, removed 7 redundant places. [2025-03-04 09:58:36,895 INFO L231 Difference]: Finished difference. Result has 79 places, 45 transitions, 207 flow [2025-03-04 09:58:36,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=207, PETRI_PLACES=79, PETRI_TRANSITIONS=45} [2025-03-04 09:58:36,896 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 27 predicate places. [2025-03-04 09:58:36,896 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 45 transitions, 207 flow [2025-03-04 09:58:36,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 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) [2025-03-04 09:58:36,896 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:36,896 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:36,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 09:58:36,896 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:36,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:36,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1505278775, now seen corresponding path program 8 times [2025-03-04 09:58:36,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:36,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206347189] [2025-03-04 09:58:36,897 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:58:36,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:36,904 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:36,973 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:36,974 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:58:36,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:38,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:38,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:38,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206347189] [2025-03-04 09:58:38,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206347189] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:38,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:38,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 09:58:38,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004908841] [2025-03-04 09:58:38,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:38,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 09:58:38,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:38,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 09:58:38,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 09:58:38,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:38,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 45 transitions, 207 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 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) [2025-03-04 09:58:38,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:38,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:38,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:38,945 INFO L124 PetriNetUnfolderBase]: 1291/2087 cut-off events. [2025-03-04 09:58:38,946 INFO L125 PetriNetUnfolderBase]: For 2914/2914 co-relation queries the response was YES. [2025-03-04 09:58:38,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6641 conditions, 2087 events. 1291/2087 cut-off events. For 2914/2914 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 9572 event pairs, 352 based on Foata normal form. 8/2094 useless extension candidates. Maximal degree in co-relation 6619. Up to 1485 conditions per place. [2025-03-04 09:58:38,951 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 48 selfloop transitions, 5 changer transitions 16/75 dead transitions. [2025-03-04 09:58:38,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 462 flow [2025-03-04 09:58:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:58:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:58:38,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2025-03-04 09:58:38,953 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3829787234042553 [2025-03-04 09:58:38,953 INFO L175 Difference]: Start difference. First operand has 79 places, 45 transitions, 207 flow. Second operand 7 states and 126 transitions. [2025-03-04 09:58:38,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 462 flow [2025-03-04 09:58:38,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 75 transitions, 411 flow, removed 11 selfloop flow, removed 15 redundant places. [2025-03-04 09:58:38,955 INFO L231 Difference]: Finished difference. Result has 67 places, 47 transitions, 214 flow [2025-03-04 09:58:38,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=214, PETRI_PLACES=67, PETRI_TRANSITIONS=47} [2025-03-04 09:58:38,956 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 15 predicate places. [2025-03-04 09:58:38,956 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 214 flow [2025-03-04 09:58:38,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 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) [2025-03-04 09:58:38,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:38,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:38,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 09:58:38,956 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-04 09:58:38,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:38,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1729297065, now seen corresponding path program 9 times [2025-03-04 09:58:38,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:38,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246216863] [2025-03-04 09:58:38,959 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 09:58:38,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:38,965 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 1 equivalence classes. [2025-03-04 09:58:39,044 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 09:58:39,045 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 09:58:39,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:40,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:40,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246216863] [2025-03-04 09:58:40,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246216863] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:40,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:40,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 09:58:40,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315142162] [2025-03-04 09:58:40,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:40,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 09:58:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:40,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 09:58:40,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-03-04 09:58:40,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2025-03-04 09:58:40,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 214 flow. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 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) [2025-03-04 09:58:40,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:40,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2025-03-04 09:58:40,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:41,440 INFO L124 PetriNetUnfolderBase]: 1107/1791 cut-off events. [2025-03-04 09:58:41,440 INFO L125 PetriNetUnfolderBase]: For 2828/2828 co-relation queries the response was YES. [2025-03-04 09:58:41,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5804 conditions, 1791 events. 1107/1791 cut-off events. For 2828/2828 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7828 event pairs, 302 based on Foata normal form. 8/1798 useless extension candidates. Maximal degree in co-relation 5792. Up to 1050 conditions per place. [2025-03-04 09:58:41,444 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2025-03-04 09:58:41,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 71 transitions, 445 flow [2025-03-04 09:58:41,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:58:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:58:41,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2025-03-04 09:58:41,449 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34515366430260047 [2025-03-04 09:58:41,449 INFO L175 Difference]: Start difference. First operand has 67 places, 47 transitions, 214 flow. Second operand 9 states and 146 transitions. [2025-03-04 09:58:41,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 71 transitions, 445 flow [2025-03-04 09:58:41,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 71 transitions, 429 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:41,451 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2025-03-04 09:58:41,451 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2025-03-04 09:58:41,451 INFO L279 CegarLoopForPetriNet]: 52 programPoint places, 14 predicate places. [2025-03-04 09:58:41,451 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2025-03-04 09:58:41,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 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) [2025-03-04 09:58:41,455 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2025-03-04 09:58:41,455 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2025-03-04 09:58:41,455 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2025-03-04 09:58:41,455 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2025-03-04 09:58:41,456 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2025-03-04 09:58:41,456 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2025-03-04 09:58:41,456 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2025-03-04 09:58:41,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 09:58:41,456 INFO L422 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1, 1, 1] [2025-03-04 09:58:41,459 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:58:41,460 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:58:41,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:58:41 BasicIcfg [2025-03-04 09:58:41,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:58:41,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:58:41,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:58:41,465 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:58:41,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:12" (3/4) ... [2025-03-04 09:58:41,467 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:58:41,468 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:58:41,469 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:58:41,469 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:58:41,472 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2025-03-04 09:58:41,473 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 09:58:41,473 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 09:58:41,473 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 09:58:41,527 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:58:41,527 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:58:41,527 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:58:41,528 INFO L158 Benchmark]: Toolchain (without parser) took 30139.59ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 111.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 126.7MB. Max. memory is 16.1GB. [2025-03-04 09:58:41,528 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:41,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.26ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 83.6MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 09:58:41,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.07ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 80.3MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:41,528 INFO L158 Benchmark]: Boogie Preprocessor took 59.35ms. Allocated memory is still 142.6MB. Free memory was 80.3MB in the beginning and 75.2MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:41,528 INFO L158 Benchmark]: IcfgBuilder took 686.46ms. Allocated memory is still 142.6MB. Free memory was 75.2MB in the beginning and 53.8MB in the end (delta: 21.4MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:41,528 INFO L158 Benchmark]: TraceAbstraction took 28867.52ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 53.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2025-03-04 09:58:41,530 INFO L158 Benchmark]: Witness Printer took 61.87ms. Allocated memory is still 1.7GB. Free memory was 1.6GB in the beginning and 1.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:41,532 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.26ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 83.6MB in the end (delta: 27.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.07ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 80.3MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.35ms. Allocated memory is still 142.6MB. Free memory was 80.3MB in the beginning and 75.2MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 686.46ms. Allocated memory is still 142.6MB. Free memory was 75.2MB in the beginning and 53.8MB in the end (delta: 21.4MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28867.52ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 53.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * Witness Printer took 61.87ms. Allocated memory is still 1.7GB. Free memory was 1.6GB in the beginning and 1.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 866]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: 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 7 procedures, 74 locations, 7 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: 28.7s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 951 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 932 mSDsluCounter, 339 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 329 mSDsCounter, 226 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4577 IncrementalHoareTripleChecker+Invalid, 4803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 226 mSolverCounterUnsat, 10 mSDtfsCounter, 4577 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=11, InterpolantAutomatonStates: 99, 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: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 383 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 369 ConstructedInterpolants, 0 QuantifiedInterpolants, 3777 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 09:58:41,548 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