./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/rfi000_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/rfi000_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:45:42,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:45:42,777 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:45:42,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:45:42,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:45:42,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:45:42,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:45:42,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:45:42,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:45:42,798 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:45:42,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:45:42,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:45:42,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:45:42,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:45:42,798 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:45:42,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:45:42,799 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:45:42,800 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:45:42,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:45:42,800 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:45:42,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:45:42,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:45:42,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:45:42,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:45:42,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:45:42,801 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-jdk21/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 -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd [2025-02-06 12:45:43,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:45:43,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:45:43,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:45:43,058 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:45:43,058 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:45:43,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2025-02-06 12:45:44,209 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/526c8e861/2728eb5abcdf414bad671d1d8505f405/FLAG6e8956d8d [2025-02-06 12:45:44,585 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:45:44,585 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2025-02-06 12:45:44,607 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/526c8e861/2728eb5abcdf414bad671d1d8505f405/FLAG6e8956d8d [2025-02-06 12:45:44,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/526c8e861/2728eb5abcdf414bad671d1d8505f405 [2025-02-06 12:45:44,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:45:44,621 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:45:44,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:45:44,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:45:44,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:45:44,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:45:44" (1/1) ... [2025-02-06 12:45:44,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3434ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:44, skipping insertion in model container [2025-02-06 12:45:44,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:45:44" (1/1) ... [2025-02-06 12:45:44,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:45:44,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:45:44,983 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:45:45,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:45:45,059 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:45:45,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45 WrapperNode [2025-02-06 12:45:45,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:45:45,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:45:45,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:45:45,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:45:45,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,102 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 171 [2025-02-06 12:45:45,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:45:45,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:45:45,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:45:45,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:45:45,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,126 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]. [2025-02-06 12:45:45,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,140 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:45:45,145 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:45:45,145 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:45:45,145 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:45:45,145 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (1/1) ... [2025-02-06 12:45:45,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:45:45,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:45:45,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:45:45,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:45:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:45:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:45:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:45:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:45:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:45:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:45:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:45:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:45:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:45:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:45:45,205 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:45:45,300 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:45:45,305 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:45:45,617 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:45:45,617 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:45:45,807 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:45:45,807 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:45:45,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:45 BoogieIcfgContainer [2025-02-06 12:45:45,807 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:45:45,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:45:45,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:45:45,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:45:45,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:45:44" (1/3) ... [2025-02-06 12:45:45,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a7bde4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:45:45, skipping insertion in model container [2025-02-06 12:45:45,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:45" (2/3) ... [2025-02-06 12:45:45,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a7bde4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:45:45, skipping insertion in model container [2025-02-06 12:45:45,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:45" (3/3) ... [2025-02-06 12:45:45,812 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2025-02-06 12:45:45,821 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:45:45,822 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi000_tso.i that has 3 procedures, 36 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-06 12:45:45,822 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:45:45,855 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:45:45,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 82 flow [2025-02-06 12:45:45,890 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2025-02-06 12:45:45,891 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:45,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 35 events. 2/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2025-02-06 12:45:45,893 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 82 flow [2025-02-06 12:45:45,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 35 transitions, 76 flow [2025-02-06 12:45:45,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:45:45,910 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;@452596ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:45:45,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-06 12:45:45,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:45:45,914 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-02-06 12:45:45,914 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:45,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:45,915 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:45,915 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:45,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:45,918 INFO L85 PathProgramCache]: Analyzing trace with hash -770572776, now seen corresponding path program 1 times [2025-02-06 12:45:45,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:45,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658484382] [2025-02-06 12:45:45,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:45,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:46,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 12:45:46,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 12:45:46,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:46,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:46,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:46,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658484382] [2025-02-06 12:45:46,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658484382] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:46,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:46,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:45:46,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036827765] [2025-02-06 12:45:46,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:46,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:45:46,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:46,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:45:46,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:45:46,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2025-02-06 12:45:46,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-02-06 12:45:46,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:46,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2025-02-06 12:45:46,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:46,607 INFO L124 PetriNetUnfolderBase]: 783/1327 cut-off events. [2025-02-06 12:45:46,607 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 12:45:46,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2621 conditions, 1327 events. 783/1327 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6600 event pairs, 159 based on Foata normal form. 96/1420 useless extension candidates. Maximal degree in co-relation 2611. Up to 985 conditions per place. [2025-02-06 12:45:46,615 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 35 selfloop transitions, 2 changer transitions 2/45 dead transitions. [2025-02-06 12:45:46,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 174 flow [2025-02-06 12:45:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:45:46,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:45:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2025-02-06 12:45:46,623 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6126126126126126 [2025-02-06 12:45:46,624 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 76 flow. Second operand 3 states and 68 transitions. [2025-02-06 12:45:46,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 174 flow [2025-02-06 12:45:46,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:45:46,628 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 68 flow [2025-02-06 12:45:46,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2025-02-06 12:45:46,631 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2025-02-06 12:45:46,631 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 68 flow [2025-02-06 12:45:46,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-02-06 12:45:46,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:46,631 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:46,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:45:46,632 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:46,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:46,632 INFO L85 PathProgramCache]: Analyzing trace with hash 367777938, now seen corresponding path program 1 times [2025-02-06 12:45:46,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:46,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747449957] [2025-02-06 12:45:46,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:46,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:46,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:45:46,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:45:46,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:46,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:46,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:46,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:46,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747449957] [2025-02-06 12:45:46,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747449957] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:46,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:46,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:45:46,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252306190] [2025-02-06 12:45:46,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:46,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:45:46,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:46,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:45:46,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:45:46,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:46,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:46,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:46,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:46,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:46,892 INFO L124 PetriNetUnfolderBase]: 701/1251 cut-off events. [2025-02-06 12:45:46,893 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2025-02-06 12:45:46,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2469 conditions, 1251 events. 701/1251 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 6300 event pairs, 701 based on Foata normal form. 48/1290 useless extension candidates. Maximal degree in co-relation 2459. Up to 1146 conditions per place. [2025-02-06 12:45:46,900 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 22 selfloop transitions, 1 changer transitions 1/29 dead transitions. [2025-02-06 12:45:46,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 114 flow [2025-02-06 12:45:46,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:45:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:45:46,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2025-02-06 12:45:46,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4144144144144144 [2025-02-06 12:45:46,902 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 68 flow. Second operand 3 states and 46 transitions. [2025-02-06 12:45:46,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 114 flow [2025-02-06 12:45:46,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:45:46,903 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 62 flow [2025-02-06 12:45:46,903 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2025-02-06 12:45:46,903 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2025-02-06 12:45:46,904 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 62 flow [2025-02-06 12:45:46,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:46,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:46,904 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:46,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:45:46,904 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:46,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:46,905 INFO L85 PathProgramCache]: Analyzing trace with hash 367778552, now seen corresponding path program 1 times [2025-02-06 12:45:46,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:46,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665999027] [2025-02-06 12:45:46,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:46,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:46,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:45:46,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:45:46,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:46,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:47,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:47,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:47,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665999027] [2025-02-06 12:45:47,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665999027] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:47,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:47,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:45:47,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827770259] [2025-02-06 12:45:47,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:47,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:45:47,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:47,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:45:47,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:45:47,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:47,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2025-02-06 12:45:47,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:47,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:47,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:47,596 INFO L124 PetriNetUnfolderBase]: 885/1561 cut-off events. [2025-02-06 12:45:47,596 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:47,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3045 conditions, 1561 events. 885/1561 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 8153 event pairs, 327 based on Foata normal form. 0/1513 useless extension candidates. Maximal degree in co-relation 3039. Up to 978 conditions per place. [2025-02-06 12:45:47,601 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 29 selfloop transitions, 3 changer transitions 48/84 dead transitions. [2025-02-06 12:45:47,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 84 transitions, 336 flow [2025-02-06 12:45:47,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:45:47,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:45:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 138 transitions. [2025-02-06 12:45:47,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46621621621621623 [2025-02-06 12:45:47,602 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 62 flow. Second operand 8 states and 138 transitions. [2025-02-06 12:45:47,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 84 transitions, 336 flow [2025-02-06 12:45:47,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 84 transitions, 335 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:45:47,604 INFO L231 Difference]: Finished difference. Result has 46 places, 29 transitions, 94 flow [2025-02-06 12:45:47,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=29} [2025-02-06 12:45:47,605 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2025-02-06 12:45:47,605 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 29 transitions, 94 flow [2025-02-06 12:45:47,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2025-02-06 12:45:47,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:47,605 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:47,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:45:47,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:47,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:47,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1643137431, now seen corresponding path program 1 times [2025-02-06 12:45:47,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:47,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213452288] [2025-02-06 12:45:47,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:47,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:47,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:45:47,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:45:47,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:47,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:48,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:48,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213452288] [2025-02-06 12:45:48,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213452288] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:48,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:48,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:45:48,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992411604] [2025-02-06 12:45:48,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:48,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:45:48,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:48,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:45:48,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:45:48,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:48,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 29 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2025-02-06 12:45:48,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:48,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:48,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:48,644 INFO L124 PetriNetUnfolderBase]: 726/1274 cut-off events. [2025-02-06 12:45:48,644 INFO L125 PetriNetUnfolderBase]: For 812/815 co-relation queries the response was YES. [2025-02-06 12:45:48,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3112 conditions, 1274 events. 726/1274 cut-off events. For 812/815 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 6088 event pairs, 190 based on Foata normal form. 51/1323 useless extension candidates. Maximal degree in co-relation 3100. Up to 654 conditions per place. [2025-02-06 12:45:48,651 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 38 selfloop transitions, 7 changer transitions 49/98 dead transitions. [2025-02-06 12:45:48,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 98 transitions, 486 flow [2025-02-06 12:45:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:45:48,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:45:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 165 transitions. [2025-02-06 12:45:48,653 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44594594594594594 [2025-02-06 12:45:48,653 INFO L175 Difference]: Start difference. First operand has 46 places, 29 transitions, 94 flow. Second operand 10 states and 165 transitions. [2025-02-06 12:45:48,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 98 transitions, 486 flow [2025-02-06 12:45:48,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 98 transitions, 463 flow, removed 10 selfloop flow, removed 3 redundant places. [2025-02-06 12:45:48,665 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 171 flow [2025-02-06 12:45:48,665 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=171, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2025-02-06 12:45:48,665 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2025-02-06 12:45:48,666 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 171 flow [2025-02-06 12:45:48,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2025-02-06 12:45:48,666 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:48,666 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:48,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:45:48,666 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:48,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:48,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1791816678, now seen corresponding path program 1 times [2025-02-06 12:45:48,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:48,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816763862] [2025-02-06 12:45:48,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:48,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:48,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:45:48,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:45:48,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:48,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:48,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:48,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816763862] [2025-02-06 12:45:48,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816763862] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:48,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:48,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:45:48,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672986267] [2025-02-06 12:45:48,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:48,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:45:48,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:48,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:45:48,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:45:48,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:48,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 171 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:48,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:48,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:48,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:49,161 INFO L124 PetriNetUnfolderBase]: 631/1122 cut-off events. [2025-02-06 12:45:49,162 INFO L125 PetriNetUnfolderBase]: For 2315/2318 co-relation queries the response was YES. [2025-02-06 12:45:49,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3767 conditions, 1122 events. 631/1122 cut-off events. For 2315/2318 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5191 event pairs, 245 based on Foata normal form. 35/1155 useless extension candidates. Maximal degree in co-relation 3747. Up to 588 conditions per place. [2025-02-06 12:45:49,167 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 38 selfloop transitions, 3 changer transitions 39/84 dead transitions. [2025-02-06 12:45:49,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 84 transitions, 599 flow [2025-02-06 12:45:49,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:45:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:45:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions. [2025-02-06 12:45:49,168 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44015444015444016 [2025-02-06 12:45:49,168 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 171 flow. Second operand 7 states and 114 transitions. [2025-02-06 12:45:49,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 84 transitions, 599 flow [2025-02-06 12:45:49,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 84 transitions, 575 flow, removed 11 selfloop flow, removed 5 redundant places. [2025-02-06 12:45:49,176 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 174 flow [2025-02-06 12:45:49,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2025-02-06 12:45:49,177 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2025-02-06 12:45:49,177 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 174 flow [2025-02-06 12:45:49,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:49,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:49,178 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:49,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:45:49,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:49,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:49,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1382385121, now seen corresponding path program 1 times [2025-02-06 12:45:49,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:49,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113992609] [2025-02-06 12:45:49,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:49,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:49,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:45:49,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:45:49,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:49,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:49,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:49,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113992609] [2025-02-06 12:45:49,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113992609] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:49,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:49,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 12:45:49,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243891290] [2025-02-06 12:45:49,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:49,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:45:49,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:49,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:45:49,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:45:49,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:49,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 174 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2025-02-06 12:45:49,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:49,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:49,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:50,200 INFO L124 PetriNetUnfolderBase]: 612/1092 cut-off events. [2025-02-06 12:45:50,201 INFO L125 PetriNetUnfolderBase]: For 2163/2163 co-relation queries the response was YES. [2025-02-06 12:45:50,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3668 conditions, 1092 events. 612/1092 cut-off events. For 2163/2163 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4983 event pairs, 260 based on Foata normal form. 27/1118 useless extension candidates. Maximal degree in co-relation 3646. Up to 851 conditions per place. [2025-02-06 12:45:50,207 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 47 selfloop transitions, 7 changer transitions 29/87 dead transitions. [2025-02-06 12:45:50,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 87 transitions, 570 flow [2025-02-06 12:45:50,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:45:50,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:45:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 137 transitions. [2025-02-06 12:45:50,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4114114114114114 [2025-02-06 12:45:50,210 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 174 flow. Second operand 9 states and 137 transitions. [2025-02-06 12:45:50,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 87 transitions, 570 flow [2025-02-06 12:45:50,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 87 transitions, 539 flow, removed 10 selfloop flow, removed 7 redundant places. [2025-02-06 12:45:50,217 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 213 flow [2025-02-06 12:45:50,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=213, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2025-02-06 12:45:50,219 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 19 predicate places. [2025-02-06 12:45:50,219 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 213 flow [2025-02-06 12:45:50,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2025-02-06 12:45:50,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:50,220 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:50,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:45:50,220 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:50,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:50,221 INFO L85 PathProgramCache]: Analyzing trace with hash 516146661, now seen corresponding path program 2 times [2025-02-06 12:45:50,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:50,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133266597] [2025-02-06 12:45:50,221 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:45:50,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:50,230 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:45:50,252 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:45:50,252 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:45:50,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:50,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:50,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133266597] [2025-02-06 12:45:50,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133266597] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:50,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:50,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 12:45:50,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273459886] [2025-02-06 12:45:50,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:50,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:45:50,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:50,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:45:50,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:45:50,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:50,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 213 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2025-02-06 12:45:50,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:50,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:50,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:51,229 INFO L124 PetriNetUnfolderBase]: 591/1051 cut-off events. [2025-02-06 12:45:51,229 INFO L125 PetriNetUnfolderBase]: For 2147/2147 co-relation queries the response was YES. [2025-02-06 12:45:51,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3688 conditions, 1051 events. 591/1051 cut-off events. For 2147/2147 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4671 event pairs, 257 based on Foata normal form. 27/1077 useless extension candidates. Maximal degree in co-relation 3664. Up to 809 conditions per place. [2025-02-06 12:45:51,233 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 45 selfloop transitions, 8 changer transitions 29/86 dead transitions. [2025-02-06 12:45:51,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 86 transitions, 598 flow [2025-02-06 12:45:51,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:45:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:45:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 124 transitions. [2025-02-06 12:45:51,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4189189189189189 [2025-02-06 12:45:51,234 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 213 flow. Second operand 8 states and 124 transitions. [2025-02-06 12:45:51,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 86 transitions, 598 flow [2025-02-06 12:45:51,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 86 transitions, 580 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-02-06 12:45:51,239 INFO L231 Difference]: Finished difference. Result has 64 places, 42 transitions, 249 flow [2025-02-06 12:45:51,239 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=249, PETRI_PLACES=64, PETRI_TRANSITIONS=42} [2025-02-06 12:45:51,239 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 24 predicate places. [2025-02-06 12:45:51,239 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 42 transitions, 249 flow [2025-02-06 12:45:51,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2025-02-06 12:45:51,239 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:51,239 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] [2025-02-06 12:45:51,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:45:51,239 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:51,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:51,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1928499904, now seen corresponding path program 1 times [2025-02-06 12:45:51,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:51,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307663902] [2025-02-06 12:45:51,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:51,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:51,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:45:51,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:45:51,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:51,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:51,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:51,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307663902] [2025-02-06 12:45:51,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307663902] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:51,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:51,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:45:51,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957200001] [2025-02-06 12:45:51,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:51,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:45:51,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:51,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:45:51,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:45:51,357 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2025-02-06 12:45:51,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 42 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-02-06 12:45:51,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:51,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2025-02-06 12:45:51,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:51,487 INFO L124 PetriNetUnfolderBase]: 380/713 cut-off events. [2025-02-06 12:45:51,488 INFO L125 PetriNetUnfolderBase]: For 1285/1288 co-relation queries the response was YES. [2025-02-06 12:45:51,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2471 conditions, 713 events. 380/713 cut-off events. For 1285/1288 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3057 event pairs, 86 based on Foata normal form. 53/764 useless extension candidates. Maximal degree in co-relation 2443. Up to 302 conditions per place. [2025-02-06 12:45:51,491 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 57 selfloop transitions, 4 changer transitions 1/66 dead transitions. [2025-02-06 12:45:51,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 66 transitions, 502 flow [2025-02-06 12:45:51,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:45:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:45:51,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2025-02-06 12:45:51,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5608108108108109 [2025-02-06 12:45:51,491 INFO L175 Difference]: Start difference. First operand has 64 places, 42 transitions, 249 flow. Second operand 4 states and 83 transitions. [2025-02-06 12:45:51,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 66 transitions, 502 flow [2025-02-06 12:45:51,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 66 transitions, 459 flow, removed 8 selfloop flow, removed 10 redundant places. [2025-02-06 12:45:51,495 INFO L231 Difference]: Finished difference. Result has 55 places, 40 transitions, 217 flow [2025-02-06 12:45:51,495 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=217, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2025-02-06 12:45:51,495 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2025-02-06 12:45:51,495 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 40 transitions, 217 flow [2025-02-06 12:45:51,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2025-02-06 12:45:51,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:51,496 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] [2025-02-06 12:45:51,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 12:45:51,496 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:51,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:51,496 INFO L85 PathProgramCache]: Analyzing trace with hash 308823575, now seen corresponding path program 1 times [2025-02-06 12:45:51,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:51,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261262271] [2025-02-06 12:45:51,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:51,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:51,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:45:51,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:45:51,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:51,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:52,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:52,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261262271] [2025-02-06 12:45:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261262271] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:52,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:52,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 12:45:52,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144030976] [2025-02-06 12:45:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:52,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:45:52,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:52,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:45:52,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:45:52,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:52,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 40 transitions, 217 flow. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 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) [2025-02-06 12:45:52,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:52,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:52,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:52,900 INFO L124 PetriNetUnfolderBase]: 509/941 cut-off events. [2025-02-06 12:45:52,900 INFO L125 PetriNetUnfolderBase]: For 1556/1559 co-relation queries the response was YES. [2025-02-06 12:45:52,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3354 conditions, 941 events. 509/941 cut-off events. For 1556/1559 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4222 event pairs, 145 based on Foata normal form. 14/953 useless extension candidates. Maximal degree in co-relation 3331. Up to 425 conditions per place. [2025-02-06 12:45:52,904 INFO L140 encePairwiseOnDemand]: 26/37 looper letters, 63 selfloop transitions, 19 changer transitions 25/111 dead transitions. [2025-02-06 12:45:52,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 111 transitions, 838 flow [2025-02-06 12:45:52,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:45:52,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:45:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 151 transitions. [2025-02-06 12:45:52,906 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45345345345345345 [2025-02-06 12:45:52,906 INFO L175 Difference]: Start difference. First operand has 55 places, 40 transitions, 217 flow. Second operand 9 states and 151 transitions. [2025-02-06 12:45:52,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 111 transitions, 838 flow [2025-02-06 12:45:52,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 111 transitions, 805 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-06 12:45:52,911 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 403 flow [2025-02-06 12:45:52,911 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=403, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2025-02-06 12:45:52,911 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 27 predicate places. [2025-02-06 12:45:52,911 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 403 flow [2025-02-06 12:45:52,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 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) [2025-02-06 12:45:52,912 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:52,912 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] [2025-02-06 12:45:52,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:45:52,912 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:52,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:52,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1397002891, now seen corresponding path program 2 times [2025-02-06 12:45:52,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:52,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870326875] [2025-02-06 12:45:52,912 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:45:52,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:52,927 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:45:52,978 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:45:52,978 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:45:52,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:54,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:54,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870326875] [2025-02-06 12:45:54,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870326875] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:54,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:54,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 12:45:54,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106561601] [2025-02-06 12:45:54,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:54,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 12:45:54,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:54,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 12:45:54,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-06 12:45:54,938 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:54,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 403 flow. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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) [2025-02-06 12:45:54,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:54,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:54,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:55,788 INFO L124 PetriNetUnfolderBase]: 808/1537 cut-off events. [2025-02-06 12:45:55,788 INFO L125 PetriNetUnfolderBase]: For 3729/3729 co-relation queries the response was YES. [2025-02-06 12:45:55,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5875 conditions, 1537 events. 808/1537 cut-off events. For 3729/3729 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 8191 event pairs, 253 based on Foata normal form. 14/1550 useless extension candidates. Maximal degree in co-relation 5846. Up to 544 conditions per place. [2025-02-06 12:45:55,796 INFO L140 encePairwiseOnDemand]: 26/37 looper letters, 91 selfloop transitions, 23 changer transitions 29/147 dead transitions. [2025-02-06 12:45:55,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 147 transitions, 1300 flow [2025-02-06 12:45:55,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:45:55,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:45:55,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 177 transitions. [2025-02-06 12:45:55,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4783783783783784 [2025-02-06 12:45:55,797 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 403 flow. Second operand 10 states and 177 transitions. [2025-02-06 12:45:55,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 147 transitions, 1300 flow [2025-02-06 12:45:55,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 147 transitions, 1232 flow, removed 34 selfloop flow, removed 2 redundant places. [2025-02-06 12:45:55,807 INFO L231 Difference]: Finished difference. Result has 78 places, 66 transitions, 568 flow [2025-02-06 12:45:55,807 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=568, PETRI_PLACES=78, PETRI_TRANSITIONS=66} [2025-02-06 12:45:55,807 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 38 predicate places. [2025-02-06 12:45:55,807 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 66 transitions, 568 flow [2025-02-06 12:45:55,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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) [2025-02-06 12:45:55,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:55,807 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] [2025-02-06 12:45:55,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 12:45:55,807 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:55,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:55,808 INFO L85 PathProgramCache]: Analyzing trace with hash 331093015, now seen corresponding path program 3 times [2025-02-06 12:45:55,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:55,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257380074] [2025-02-06 12:45:55,808 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:45:55,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:55,820 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:45:55,850 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:45:55,850 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 12:45:55,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:55,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:55,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257380074] [2025-02-06 12:45:55,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257380074] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:55,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:55,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:45:55,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294163878] [2025-02-06 12:45:55,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:55,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:45:55,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:55,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:45:55,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:45:55,945 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2025-02-06 12:45:55,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 66 transitions, 568 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:55,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:55,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2025-02-06 12:45:55,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:56,074 INFO L124 PetriNetUnfolderBase]: 465/917 cut-off events. [2025-02-06 12:45:56,075 INFO L125 PetriNetUnfolderBase]: For 2785/2788 co-relation queries the response was YES. [2025-02-06 12:45:56,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3490 conditions, 917 events. 465/917 cut-off events. For 2785/2788 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4523 event pairs, 97 based on Foata normal form. 80/995 useless extension candidates. Maximal degree in co-relation 3455. Up to 428 conditions per place. [2025-02-06 12:45:56,080 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 60 selfloop transitions, 6 changer transitions 14/84 dead transitions. [2025-02-06 12:45:56,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 84 transitions, 850 flow [2025-02-06 12:45:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:45:56,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:45:56,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions. [2025-02-06 12:45:56,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4540540540540541 [2025-02-06 12:45:56,081 INFO L175 Difference]: Start difference. First operand has 78 places, 66 transitions, 568 flow. Second operand 5 states and 84 transitions. [2025-02-06 12:45:56,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 84 transitions, 850 flow [2025-02-06 12:45:56,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 736 flow, removed 43 selfloop flow, removed 9 redundant places. [2025-02-06 12:45:56,087 INFO L231 Difference]: Finished difference. Result has 73 places, 55 transitions, 390 flow [2025-02-06 12:45:56,088 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=390, PETRI_PLACES=73, PETRI_TRANSITIONS=55} [2025-02-06 12:45:56,089 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 33 predicate places. [2025-02-06 12:45:56,089 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 55 transitions, 390 flow [2025-02-06 12:45:56,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:56,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:56,089 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] [2025-02-06 12:45:56,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 12:45:56,090 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:56,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:56,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1278280432, now seen corresponding path program 1 times [2025-02-06 12:45:56,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:56,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034871067] [2025-02-06 12:45:56,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:56,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:56,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 12:45:56,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 12:45:56,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:56,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:57,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:57,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034871067] [2025-02-06 12:45:57,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034871067] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:57,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:57,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 12:45:57,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229508207] [2025-02-06 12:45:57,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:57,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 12:45:57,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:57,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 12:45:57,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 12:45:57,344 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:57,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 55 transitions, 390 flow. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 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) [2025-02-06 12:45:57,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:57,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:57,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:57,746 INFO L124 PetriNetUnfolderBase]: 273/551 cut-off events. [2025-02-06 12:45:57,746 INFO L125 PetriNetUnfolderBase]: For 1146/1149 co-relation queries the response was YES. [2025-02-06 12:45:57,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2014 conditions, 551 events. 273/551 cut-off events. For 1146/1149 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2233 event pairs, 83 based on Foata normal form. 8/557 useless extension candidates. Maximal degree in co-relation 1983. Up to 246 conditions per place. [2025-02-06 12:45:57,749 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 29 selfloop transitions, 7 changer transitions 40/80 dead transitions. [2025-02-06 12:45:57,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 80 transitions, 668 flow [2025-02-06 12:45:57,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:45:57,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:45:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 107 transitions. [2025-02-06 12:45:57,750 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3614864864864865 [2025-02-06 12:45:57,750 INFO L175 Difference]: Start difference. First operand has 73 places, 55 transitions, 390 flow. Second operand 8 states and 107 transitions. [2025-02-06 12:45:57,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 80 transitions, 668 flow [2025-02-06 12:45:57,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 80 transitions, 571 flow, removed 26 selfloop flow, removed 12 redundant places. [2025-02-06 12:45:57,755 INFO L231 Difference]: Finished difference. Result has 71 places, 35 transitions, 212 flow [2025-02-06 12:45:57,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=212, PETRI_PLACES=71, PETRI_TRANSITIONS=35} [2025-02-06 12:45:57,756 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 31 predicate places. [2025-02-06 12:45:57,756 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 35 transitions, 212 flow [2025-02-06 12:45:57,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 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) [2025-02-06 12:45:57,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:57,757 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] [2025-02-06 12:45:57,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 12:45:57,757 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:45:57,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:57,758 INFO L85 PathProgramCache]: Analyzing trace with hash 836994960, now seen corresponding path program 2 times [2025-02-06 12:45:57,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:57,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217701779] [2025-02-06 12:45:57,758 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:45:57,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:57,764 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 1 equivalence classes. [2025-02-06 12:45:57,773 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 12:45:57,774 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:45:57,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:57,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:45:57,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:57,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217701779] [2025-02-06 12:45:57,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217701779] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:57,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:57,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:45:57,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454845349] [2025-02-06 12:45:57,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:57,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:45:57,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:57,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:45:57,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:45:57,908 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2025-02-06 12:45:57,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 35 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2025-02-06 12:45:57,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:57,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2025-02-06 12:45:57,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:58,014 INFO L124 PetriNetUnfolderBase]: 98/197 cut-off events. [2025-02-06 12:45:58,014 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES. [2025-02-06 12:45:58,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 197 events. 98/197 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 539 event pairs, 24 based on Foata normal form. 4/200 useless extension candidates. Maximal degree in co-relation 664. Up to 128 conditions per place. [2025-02-06 12:45:58,015 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2025-02-06 12:45:58,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 39 transitions, 294 flow [2025-02-06 12:45:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:45:58,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:45:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2025-02-06 12:45:58,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3567567567567568 [2025-02-06 12:45:58,016 INFO L175 Difference]: Start difference. First operand has 71 places, 35 transitions, 212 flow. Second operand 5 states and 66 transitions. [2025-02-06 12:45:58,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 39 transitions, 294 flow [2025-02-06 12:45:58,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 39 transitions, 209 flow, removed 7 selfloop flow, removed 25 redundant places. [2025-02-06 12:45:58,017 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-02-06 12:45:58,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2025-02-06 12:45:58,018 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 5 predicate places. [2025-02-06 12:45:58,019 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-02-06 12:45:58,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 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) [2025-02-06 12:45:58,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2025-02-06 12:45:58,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2025-02-06 12:45:58,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2025-02-06 12:45:58,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2025-02-06 12:45:58,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2025-02-06 12:45:58,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2025-02-06 12:45:58,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 12:45:58,021 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:58,025 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:45:58,026 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:45:58,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:45:58 BasicIcfg [2025-02-06 12:45:58,031 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:45:58,032 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:45:58,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:45:58,032 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:45:58,033 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:45" (3/4) ... [2025-02-06 12:45:58,034 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:45:58,036 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 12:45:58,037 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 12:45:58,039 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2025-02-06 12:45:58,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:45:58,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 12:45:58,040 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 12:45:58,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:45:58,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:45:58,095 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:45:58,096 INFO L158 Benchmark]: Toolchain (without parser) took 13475.04ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 111.6MB in the beginning and 606.5MB in the end (delta: -495.0MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2025-02-06 12:45:58,097 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:45:58,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.78ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 86.6MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 12:45:58,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.15ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 83.7MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:45:58,098 INFO L158 Benchmark]: Boogie Preprocessor took 41.36ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 79.7MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:45:58,098 INFO L158 Benchmark]: IcfgBuilder took 662.53ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 81.4MB in the end (delta: -1.7MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2025-02-06 12:45:58,099 INFO L158 Benchmark]: TraceAbstraction took 12222.91ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 80.7MB in the beginning and 610.8MB in the end (delta: -530.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:45:58,099 INFO L158 Benchmark]: Witness Printer took 63.47ms. Allocated memory is still 654.3MB. Free memory was 610.8MB in the beginning and 606.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:45:58,100 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.78ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 86.6MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.15ms. Allocated memory is still 142.6MB. Free memory was 86.6MB in the beginning and 83.7MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.36ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 79.7MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 662.53ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 81.4MB in the end (delta: -1.7MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * TraceAbstraction took 12222.91ms. Allocated memory was 142.6MB in the beginning and 654.3MB in the end (delta: 511.7MB). Free memory was 80.7MB in the beginning and 610.8MB in the end (delta: -530.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.47ms. Allocated memory is still 654.3MB. Free memory was 610.8MB in the beginning and 606.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. 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: 824]: 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 5 procedures, 55 locations, 6 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: 12.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 530 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 527 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2421 IncrementalHoareTripleChecker+Invalid, 2503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 1 mSDtfsCounter, 2421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=568occurred in iteration=10, InterpolantAutomatonStates: 89, 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, 0.4s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 1957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2025-02-06 12:45:58,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE