./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/rfi002_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/rfi002_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 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:45:53,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:45:53,107 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:45:53,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:45:53,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:45:53,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:45:53,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:45:53,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:45:53,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:45:53,135 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:45:53,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:45:53,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:45:53,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:45:53,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:45:53,137 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:45:53,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:45:53,137 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:45:53,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:45:53,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:45:53,138 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:45:53,138 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:45:53,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:45:53,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:45:53,140 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 -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2025-02-06 12:45:53,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:45:53,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:45:53,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:45:53,401 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:45:53,401 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:45:53,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2025-02-06 12:45:54,607 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d581cb963/356a496fdeb54499961c69ec00eab87a/FLAG3e0c18db5 [2025-02-06 12:45:54,960 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:45:54,963 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2025-02-06 12:45:54,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d581cb963/356a496fdeb54499961c69ec00eab87a/FLAG3e0c18db5 [2025-02-06 12:45:55,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d581cb963/356a496fdeb54499961c69ec00eab87a [2025-02-06 12:45:55,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:45:55,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:45:55,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:45:55,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:45:55,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:45:55,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,197 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21906d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55, skipping insertion in model container [2025-02-06 12:45:55,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:45:55,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:45:55,550 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:45:55,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:45:55,629 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:45:55,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55 WrapperNode [2025-02-06 12:45:55,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:45:55,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:45:55,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:45:55,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:45:55,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,683 INFO L138 Inliner]: procedures = 174, calls = 41, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 212 [2025-02-06 12:45:55,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:45:55,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:45:55,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:45:55,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:45:55,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,721 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 12:45:55,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,737 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:45:55,750 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:45:55,751 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:45:55,751 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:45:55,751 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (1/1) ... [2025-02-06 12:45:55,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:45:55,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:45:55,781 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 12:45:55,791 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 12:45:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:45:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:45:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:45:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:45:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:45:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:45:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:45:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:45:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:45:55,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:45:55,807 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 12:45:55,931 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:45:55,936 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:45:56,310 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:45:56,311 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:45:56,626 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:45:56,626 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:45:56,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:56 BoogieIcfgContainer [2025-02-06 12:45:56,627 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:45:56,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:45:56,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:45:56,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:45:56,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:45:55" (1/3) ... [2025-02-06 12:45:56,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1043cc70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:45:56, skipping insertion in model container [2025-02-06 12:45:56,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:55" (2/3) ... [2025-02-06 12:45:56,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1043cc70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:45:56, skipping insertion in model container [2025-02-06 12:45:56,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:56" (3/3) ... [2025-02-06 12:45:56,633 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2025-02-06 12:45:56,644 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:45:56,647 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi002_tso.i that has 3 procedures, 38 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-06 12:45:56,647 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:45:56,691 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:45:56,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 39 transitions, 86 flow [2025-02-06 12:45:56,731 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-06 12:45:56,732 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:56,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 37 events. 2/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2025-02-06 12:45:56,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 39 transitions, 86 flow [2025-02-06 12:45:56,736 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 37 transitions, 80 flow [2025-02-06 12:45:56,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:45:56,748 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45f6e6d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:45:56,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 12:45:56,753 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:45:56,753 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-02-06 12:45:56,753 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:56,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:56,754 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 12:45:56,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:45:56,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:56,758 INFO L85 PathProgramCache]: Analyzing trace with hash -779959803, now seen corresponding path program 1 times [2025-02-06 12:45:56,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:56,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193728251] [2025-02-06 12:45:56,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:56,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:56,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:45:56,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:45:56,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:56,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:57,083 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 12:45:57,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:57,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193728251] [2025-02-06 12:45:57,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193728251] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:57,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:57,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:45:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806613208] [2025-02-06 12:45:57,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:57,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:45:57,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:57,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:45:57,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:45:57,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2025-02-06 12:45:57,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 12:45:57,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:57,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2025-02-06 12:45:57,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:57,532 INFO L124 PetriNetUnfolderBase]: 1050/1726 cut-off events. [2025-02-06 12:45:57,532 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-06 12:45:57,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3441 conditions, 1726 events. 1050/1726 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 8725 event pairs, 66 based on Foata normal form. 126/1781 useless extension candidates. Maximal degree in co-relation 3431. Up to 1545 conditions per place. [2025-02-06 12:45:57,543 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 40 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2025-02-06 12:45:57,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 48 transitions, 186 flow [2025-02-06 12:45:57,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:45:57,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:45:57,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-06 12:45:57,552 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6068376068376068 [2025-02-06 12:45:57,553 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 80 flow. Second operand 3 states and 71 transitions. [2025-02-06 12:45:57,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 48 transitions, 186 flow [2025-02-06 12:45:57,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:45:57,558 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 74 flow [2025-02-06 12:45:57,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2025-02-06 12:45:57,562 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, -2 predicate places. [2025-02-06 12:45:57,562 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 74 flow [2025-02-06 12:45:57,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 12:45:57,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:57,562 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:57,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:45:57,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:45:57,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:57,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1591050470, now seen corresponding path program 1 times [2025-02-06 12:45:57,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:57,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822631428] [2025-02-06 12:45:57,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:57,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:57,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 12:45:57,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 12:45:57,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:57,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:57,754 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 12:45:57,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:57,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822631428] [2025-02-06 12:45:57,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822631428] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:57,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:57,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:45:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309751006] [2025-02-06 12:45:57,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:57,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:45:57,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:57,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:45:57,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:45:57,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2025-02-06 12:45:57,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 74 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 12:45:57,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:57,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2025-02-06 12:45:57,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:58,038 INFO L124 PetriNetUnfolderBase]: 927/1561 cut-off events. [2025-02-06 12:45:58,039 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2025-02-06 12:45:58,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3153 conditions, 1561 events. 927/1561 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7946 event pairs, 189 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 3143. Up to 1159 conditions per place. [2025-02-06 12:45:58,046 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 37 selfloop transitions, 2 changer transitions 2/47 dead transitions. [2025-02-06 12:45:58,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 184 flow [2025-02-06 12:45:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:45:58,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:45:58,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-02-06 12:45:58,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2025-02-06 12:45:58,048 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 74 flow. Second operand 3 states and 66 transitions. [2025-02-06 12:45:58,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 184 flow [2025-02-06 12:45:58,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:45:58,050 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 70 flow [2025-02-06 12:45:58,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2025-02-06 12:45:58,051 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2025-02-06 12:45:58,051 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 70 flow [2025-02-06 12:45:58,051 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 12:45:58,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:58,051 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:58,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:45:58,051 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:45:58,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:58,052 INFO L85 PathProgramCache]: Analyzing trace with hash 790610734, now seen corresponding path program 1 times [2025-02-06 12:45:58,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:58,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985568784] [2025-02-06 12:45:58,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:58,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:58,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:45:58,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:45:58,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:58,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:58,155 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 12:45:58,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:58,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985568784] [2025-02-06 12:45:58,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985568784] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:58,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:58,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:45:58,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437106102] [2025-02-06 12:45:58,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:58,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:45:58,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:58,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:45:58,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:45:58,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-06 12:45:58,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 70 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 12:45:58,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:58,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-06 12:45:58,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:58,404 INFO L124 PetriNetUnfolderBase]: 830/1492 cut-off events. [2025-02-06 12:45:58,404 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-02-06 12:45:58,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2924 conditions, 1492 events. 830/1492 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7698 event pairs, 830 based on Foata normal form. 56/1540 useless extension candidates. Maximal degree in co-relation 2914. Up to 1349 conditions per place. [2025-02-06 12:45:58,411 INFO L140 encePairwiseOnDemand]: 37/39 looper letters, 23 selfloop transitions, 1 changer transitions 1/30 dead transitions. [2025-02-06 12:45:58,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 118 flow [2025-02-06 12:45:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:45:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:45:58,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2025-02-06 12:45:58,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4017094017094017 [2025-02-06 12:45:58,412 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 70 flow. Second operand 3 states and 47 transitions. [2025-02-06 12:45:58,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 118 flow [2025-02-06 12:45:58,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:45:58,413 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 64 flow [2025-02-06 12:45:58,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2025-02-06 12:45:58,414 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, -5 predicate places. [2025-02-06 12:45:58,415 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 64 flow [2025-02-06 12:45:58,415 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 12:45:58,415 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:58,415 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:58,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:45:58,415 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:45:58,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:58,416 INFO L85 PathProgramCache]: Analyzing trace with hash 790611213, now seen corresponding path program 1 times [2025-02-06 12:45:58,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:58,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867606580] [2025-02-06 12:45:58,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:58,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:58,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:45:58,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:45:58,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:58,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:58,930 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 12:45:58,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:58,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867606580] [2025-02-06 12:45:58,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867606580] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:58,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:58,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:45:58,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234923039] [2025-02-06 12:45:58,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:58,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:45:58,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:58,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:45:58,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:45:58,934 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-06 12:45:58,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:58,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:58,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-06 12:45:58,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:59,394 INFO L124 PetriNetUnfolderBase]: 909/1567 cut-off events. [2025-02-06 12:45:59,394 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:45:59,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3087 conditions, 1567 events. 909/1567 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7850 event pairs, 238 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 3081. Up to 697 conditions per place. [2025-02-06 12:45:59,398 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 35 selfloop transitions, 2 changer transitions 56/97 dead transitions. [2025-02-06 12:45:59,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 97 transitions, 388 flow [2025-02-06 12:45:59,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:45:59,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:45:59,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2025-02-06 12:45:59,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.483974358974359 [2025-02-06 12:45:59,400 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 64 flow. Second operand 8 states and 151 transitions. [2025-02-06 12:45:59,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 97 transitions, 388 flow [2025-02-06 12:45:59,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 97 transitions, 387 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:45:59,402 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 77 flow [2025-02-06 12:45:59,402 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=77, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2025-02-06 12:45:59,402 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2025-02-06 12:45:59,402 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 77 flow [2025-02-06 12:45:59,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:45:59,403 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:59,403 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 12:45:59,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:45:59,403 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:45:59,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:59,403 INFO L85 PathProgramCache]: Analyzing trace with hash -53267261, now seen corresponding path program 1 times [2025-02-06 12:45:59,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:59,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376337391] [2025-02-06 12:45:59,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:59,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:59,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:45:59,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:45:59,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:45:59,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:45:59,671 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 12:45:59,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:45:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376337391] [2025-02-06 12:45:59,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376337391] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:45:59,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:45:59,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:45:59,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878524689] [2025-02-06 12:45:59,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:45:59,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:45:59,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:45:59,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:45:59,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:45:59,673 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-06 12:45:59,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 77 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 12:45:59,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:45:59,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-06 12:45:59,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:45:59,957 INFO L124 PetriNetUnfolderBase]: 619/1081 cut-off events. [2025-02-06 12:45:59,957 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2025-02-06 12:45:59,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2405 conditions, 1081 events. 619/1081 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4741 event pairs, 200 based on Foata normal form. 32/1112 useless extension candidates. Maximal degree in co-relation 2393. Up to 619 conditions per place. [2025-02-06 12:45:59,961 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 32 selfloop transitions, 2 changer transitions 29/67 dead transitions. [2025-02-06 12:45:59,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 67 transitions, 294 flow [2025-02-06 12:45:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:45:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:45:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions. [2025-02-06 12:45:59,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4175824175824176 [2025-02-06 12:45:59,963 INFO L175 Difference]: Start difference. First operand has 47 places, 28 transitions, 77 flow. Second operand 7 states and 114 transitions. [2025-02-06 12:45:59,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 67 transitions, 294 flow [2025-02-06 12:45:59,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 67 transitions, 272 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-06 12:45:59,967 INFO L231 Difference]: Finished difference. Result has 46 places, 28 transitions, 81 flow [2025-02-06 12:45:59,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=81, PETRI_PLACES=46, PETRI_TRANSITIONS=28} [2025-02-06 12:45:59,967 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2025-02-06 12:45:59,967 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 28 transitions, 81 flow [2025-02-06 12:45:59,968 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 12:45:59,968 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:45:59,968 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:45:59,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:45:59,968 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:45:59,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:45:59,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1571496288, now seen corresponding path program 1 times [2025-02-06 12:45:59,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:45:59,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039524171] [2025-02-06 12:45:59,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:45:59,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:45:59,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 12:46:00,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 12:46:00,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:00,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:01,995 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 12:46:01,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:01,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039524171] [2025-02-06 12:46:01,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039524171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:01,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:01,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 12:46:01,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329584014] [2025-02-06 12:46:01,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:01,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:46:01,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:01,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:46:01,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:46:01,998 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-06 12:46:01,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 28 transitions, 81 flow. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 12:46:01,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:01,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-06 12:46:01,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:03,480 INFO L124 PetriNetUnfolderBase]: 718/1246 cut-off events. [2025-02-06 12:46:03,481 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2025-02-06 12:46:03,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2850 conditions, 1246 events. 718/1246 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5557 event pairs, 87 based on Foata normal form. 20/1265 useless extension candidates. Maximal degree in co-relation 2837. Up to 802 conditions per place. [2025-02-06 12:46:03,487 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 66 selfloop transitions, 46 changer transitions 21/137 dead transitions. [2025-02-06 12:46:03,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 137 transitions, 595 flow [2025-02-06 12:46:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 12:46:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 12:46:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 254 transitions. [2025-02-06 12:46:03,492 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38310708898944196 [2025-02-06 12:46:03,492 INFO L175 Difference]: Start difference. First operand has 46 places, 28 transitions, 81 flow. Second operand 17 states and 254 transitions. [2025-02-06 12:46:03,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 137 transitions, 595 flow [2025-02-06 12:46:03,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 137 transitions, 567 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-06 12:46:03,498 INFO L231 Difference]: Finished difference. Result has 57 places, 79 transitions, 326 flow [2025-02-06 12:46:03,498 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=326, PETRI_PLACES=57, PETRI_TRANSITIONS=79} [2025-02-06 12:46:03,498 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-02-06 12:46:03,499 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 79 transitions, 326 flow [2025-02-06 12:46:03,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 12:46:03,499 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:03,499 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:03,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:46:03,499 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:46:03,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash -257423604, now seen corresponding path program 2 times [2025-02-06 12:46:03,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:03,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606219260] [2025-02-06 12:46:03,500 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:46:03,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:03,512 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-02-06 12:46:03,603 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 12:46:03,603 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:46:03,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:03,840 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 12:46:03,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:03,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606219260] [2025-02-06 12:46:03,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606219260] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:03,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:03,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:46:03,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383188914] [2025-02-06 12:46:03,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:03,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:46:03,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:03,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:46:03,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:46:03,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2025-02-06 12:46:03,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 79 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 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 12:46:03,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:03,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2025-02-06 12:46:03,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:04,099 INFO L124 PetriNetUnfolderBase]: 473/864 cut-off events. [2025-02-06 12:46:04,100 INFO L125 PetriNetUnfolderBase]: For 250/250 co-relation queries the response was YES. [2025-02-06 12:46:04,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2321 conditions, 864 events. 473/864 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3687 event pairs, 94 based on Foata normal form. 71/934 useless extension candidates. Maximal degree in co-relation 2307. Up to 319 conditions per place. [2025-02-06 12:46:04,103 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 84 selfloop transitions, 4 changer transitions 1/93 dead transitions. [2025-02-06 12:46:04,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 93 transitions, 542 flow [2025-02-06 12:46:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:46:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:46:04,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-02-06 12:46:04,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2025-02-06 12:46:04,104 INFO L175 Difference]: Start difference. First operand has 57 places, 79 transitions, 326 flow. Second operand 4 states and 86 transitions. [2025-02-06 12:46:04,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 93 transitions, 542 flow [2025-02-06 12:46:04,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 93 transitions, 534 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-02-06 12:46:04,107 INFO L231 Difference]: Finished difference. Result has 52 places, 63 transitions, 266 flow [2025-02-06 12:46:04,107 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=52, PETRI_TRANSITIONS=63} [2025-02-06 12:46:04,107 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2025-02-06 12:46:04,107 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 63 transitions, 266 flow [2025-02-06 12:46:04,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 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 12:46:04,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:04,108 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] [2025-02-06 12:46:04,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:46:04,108 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:46:04,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:04,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1095684827, now seen corresponding path program 1 times [2025-02-06 12:46:04,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:04,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288880539] [2025-02-06 12:46:04,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:04,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 12:46:04,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 12:46:04,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:04,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:04,343 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 12:46:04,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:04,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288880539] [2025-02-06 12:46:04,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288880539] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:04,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:04,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:46:04,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962630109] [2025-02-06 12:46:04,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:04,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:46:04,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:04,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:46:04,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:46:04,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2025-02-06 12:46:04,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 63 transitions, 266 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 12:46:04,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:04,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2025-02-06 12:46:04,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:04,498 INFO L124 PetriNetUnfolderBase]: 255/477 cut-off events. [2025-02-06 12:46:04,499 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2025-02-06 12:46:04,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 477 events. 255/477 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1734 event pairs, 61 based on Foata normal form. 30/506 useless extension candidates. Maximal degree in co-relation 1387. Up to 199 conditions per place. [2025-02-06 12:46:04,502 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 65 selfloop transitions, 6 changer transitions 1/76 dead transitions. [2025-02-06 12:46:04,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 76 transitions, 449 flow [2025-02-06 12:46:04,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:46:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:46:04,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-02-06 12:46:04,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.441025641025641 [2025-02-06 12:46:04,506 INFO L175 Difference]: Start difference. First operand has 52 places, 63 transitions, 266 flow. Second operand 5 states and 86 transitions. [2025-02-06 12:46:04,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 76 transitions, 449 flow [2025-02-06 12:46:04,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 76 transitions, 400 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-02-06 12:46:04,508 INFO L231 Difference]: Finished difference. Result has 52 places, 56 transitions, 219 flow [2025-02-06 12:46:04,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=52, PETRI_TRANSITIONS=56} [2025-02-06 12:46:04,510 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2025-02-06 12:46:04,511 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 56 transitions, 219 flow [2025-02-06 12:46:04,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 12:46:04,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:04,511 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:04,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 12:46:04,511 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:46:04,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:04,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1777726077, now seen corresponding path program 1 times [2025-02-06 12:46:04,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:04,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614928174] [2025-02-06 12:46:04,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:04,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:04,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 12:46:04,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 12:46:04,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:04,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:05,112 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 12:46:05,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:05,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614928174] [2025-02-06 12:46:05,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614928174] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:05,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:05,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:46:05,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928740065] [2025-02-06 12:46:05,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:05,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:46:05,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:05,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:46:05,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:46:05,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-06 12:46:05,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 56 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 12:46:05,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:05,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-06 12:46:05,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:05,431 INFO L124 PetriNetUnfolderBase]: 291/553 cut-off events. [2025-02-06 12:46:05,431 INFO L125 PetriNetUnfolderBase]: For 297/297 co-relation queries the response was YES. [2025-02-06 12:46:05,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 553 events. 291/553 cut-off events. For 297/297 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2083 event pairs, 45 based on Foata normal form. 4/556 useless extension candidates. Maximal degree in co-relation 1509. Up to 266 conditions per place. [2025-02-06 12:46:05,433 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 41 selfloop transitions, 17 changer transitions 26/88 dead transitions. [2025-02-06 12:46:05,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 88 transitions, 510 flow [2025-02-06 12:46:05,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:46:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:46:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 107 transitions. [2025-02-06 12:46:05,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39194139194139194 [2025-02-06 12:46:05,434 INFO L175 Difference]: Start difference. First operand has 52 places, 56 transitions, 219 flow. Second operand 7 states and 107 transitions. [2025-02-06 12:46:05,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 88 transitions, 510 flow [2025-02-06 12:46:05,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 88 transitions, 453 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-02-06 12:46:05,435 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 255 flow [2025-02-06 12:46:05,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2025-02-06 12:46:05,436 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2025-02-06 12:46:05,436 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 255 flow [2025-02-06 12:46:05,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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 12:46:05,436 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:05,436 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:05,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:46:05,436 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:46:05,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1217474993, now seen corresponding path program 2 times [2025-02-06 12:46:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:05,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318767703] [2025-02-06 12:46:05,441 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:46:05,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:05,451 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-02-06 12:46:05,515 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 12:46:05,518 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:46:05,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:06,329 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 12:46:06,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:06,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318767703] [2025-02-06 12:46:06,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318767703] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:06,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:06,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 12:46:06,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786814800] [2025-02-06 12:46:06,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:06,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 12:46:06,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:06,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 12:46:06,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 12:46:06,333 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-06 12:46:06,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 255 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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 12:46:06,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:06,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-06 12:46:06,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:06,639 INFO L124 PetriNetUnfolderBase]: 226/444 cut-off events. [2025-02-06 12:46:06,639 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2025-02-06 12:46:06,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 444 events. 226/444 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1502 event pairs, 53 based on Foata normal form. 4/447 useless extension candidates. Maximal degree in co-relation 1199. Up to 192 conditions per place. [2025-02-06 12:46:06,641 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 48 selfloop transitions, 18 changer transitions 32/102 dead transitions. [2025-02-06 12:46:06,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 102 transitions, 592 flow [2025-02-06 12:46:06,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 12:46:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 12:46:06,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 158 transitions. [2025-02-06 12:46:06,642 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33760683760683763 [2025-02-06 12:46:06,642 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 255 flow. Second operand 12 states and 158 transitions. [2025-02-06 12:46:06,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 102 transitions, 592 flow [2025-02-06 12:46:06,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 102 transitions, 582 flow, removed 5 selfloop flow, removed 3 redundant places. [2025-02-06 12:46:06,644 INFO L231 Difference]: Finished difference. Result has 66 places, 55 transitions, 293 flow [2025-02-06 12:46:06,644 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=293, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2025-02-06 12:46:06,644 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 24 predicate places. [2025-02-06 12:46:06,644 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 293 flow [2025-02-06 12:46:06,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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 12:46:06,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:06,645 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:06,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 12:46:06,645 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-02-06 12:46:06,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:06,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1757601227, now seen corresponding path program 3 times [2025-02-06 12:46:06,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:06,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174821980] [2025-02-06 12:46:06,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:46:06,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:06,653 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 1 equivalence classes. [2025-02-06 12:46:06,689 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 12:46:06,689 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 12:46:06,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:08,054 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 12:46:08,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:08,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174821980] [2025-02-06 12:46:08,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174821980] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:08,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:08,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 12:46:08,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109425007] [2025-02-06 12:46:08,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:08,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 12:46:08,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:08,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 12:46:08,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 12:46:08,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-06 12:46:08,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 293 flow. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 11 states have internal predecessors, (99), 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 12:46:08,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:08,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-06 12:46:08,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:08,384 INFO L124 PetriNetUnfolderBase]: 147/281 cut-off events. [2025-02-06 12:46:08,385 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2025-02-06 12:46:08,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 281 events. 147/281 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 810 event pairs, 12 based on Foata normal form. 4/284 useless extension candidates. Maximal degree in co-relation 888. Up to 127 conditions per place. [2025-02-06 12:46:08,386 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-02-06 12:46:08,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 438 flow [2025-02-06 12:46:08,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:46:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:46:08,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 85 transitions. [2025-02-06 12:46:08,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31135531135531136 [2025-02-06 12:46:08,388 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 293 flow. Second operand 7 states and 85 transitions. [2025-02-06 12:46:08,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 438 flow [2025-02-06 12:46:08,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 388 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-02-06 12:46:08,390 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2025-02-06 12:46:08,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2025-02-06 12:46:08,390 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-02-06 12:46:08,391 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2025-02-06 12:46:08,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 11 states have internal predecessors, (99), 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 12:46:08,393 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-02-06 12:46:08,394 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-02-06 12:46:08,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2025-02-06 12:46:08,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2025-02-06 12:46:08,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2025-02-06 12:46:08,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2025-02-06 12:46:08,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2025-02-06 12:46:08,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2025-02-06 12:46:08,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 12:46:08,396 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:08,399 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:46:08,399 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:46:08,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:46:08 BasicIcfg [2025-02-06 12:46:08,404 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:46:08,404 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:46:08,404 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:46:08,404 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:46:08,405 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:56" (3/4) ... [2025-02-06 12:46:08,406 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:46:08,407 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 12:46:08,407 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 12:46:08,412 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-02-06 12:46:08,412 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:46:08,412 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 12:46:08,412 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 12:46:08,472 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:46:08,472 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:46:08,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:46:08,473 INFO L158 Benchmark]: Toolchain (without parser) took 13280.75ms. Allocated memory was 201.3MB in the beginning and 696.3MB in the end (delta: 494.9MB). Free memory was 154.0MB in the beginning and 397.2MB in the end (delta: -243.3MB). Peak memory consumption was 251.6MB. Max. memory is 16.1GB. [2025-02-06 12:46:08,473 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 209.7MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:46:08,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.86ms. Allocated memory is still 201.3MB. Free memory was 154.0MB in the beginning and 126.4MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 12:46:08,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.99ms. Allocated memory is still 201.3MB. Free memory was 126.4MB in the beginning and 122.7MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:46:08,475 INFO L158 Benchmark]: Boogie Preprocessor took 66.22ms. Allocated memory is still 201.3MB. Free memory was 122.7MB in the beginning and 117.7MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:46:08,475 INFO L158 Benchmark]: IcfgBuilder took 876.47ms. Allocated memory is still 201.3MB. Free memory was 117.7MB in the beginning and 114.5MB in the end (delta: 3.2MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2025-02-06 12:46:08,476 INFO L158 Benchmark]: TraceAbstraction took 11775.73ms. Allocated memory was 201.3MB in the beginning and 696.3MB in the end (delta: 494.9MB). Free memory was 113.5MB in the beginning and 401.5MB in the end (delta: -288.0MB). Peak memory consumption was 201.5MB. Max. memory is 16.1GB. [2025-02-06 12:46:08,476 INFO L158 Benchmark]: Witness Printer took 68.00ms. Allocated memory is still 696.3MB. Free memory was 401.5MB in the beginning and 397.2MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:46:08,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 209.7MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.86ms. Allocated memory is still 201.3MB. Free memory was 154.0MB in the beginning and 126.4MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.99ms. Allocated memory is still 201.3MB. Free memory was 126.4MB in the beginning and 122.7MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.22ms. Allocated memory is still 201.3MB. Free memory was 122.7MB in the beginning and 117.7MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 876.47ms. Allocated memory is still 201.3MB. Free memory was 117.7MB in the beginning and 114.5MB in the end (delta: 3.2MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11775.73ms. Allocated memory was 201.3MB in the beginning and 696.3MB in the end (delta: 494.9MB). Free memory was 113.5MB in the beginning and 401.5MB in the end (delta: -288.0MB). Peak memory consumption was 201.5MB. Max. memory is 16.1GB. * Witness Printer took 68.00ms. Allocated memory is still 696.3MB. Free memory was 401.5MB in the beginning and 397.2MB 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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 874]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: 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, 59 locations, 8 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: 11.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 513 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 509 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1550 IncrementalHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 5 mSDtfsCounter, 1550 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=6, InterpolantAutomatonStates: 76, 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, 0.5s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 1750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 12:46:08,495 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