./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe034_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:58:06,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:58:06,746 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:58:06,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:58:06,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:58:06,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:58:06,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:58:06,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:58:06,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:58:06,768 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:58:06,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:58:06,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:58:06,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:58:06,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:58:06,769 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:58:06,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:58:06,769 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:58:06,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:58:06,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:58:06,770 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:06,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:58:06,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:58:06,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:58:06,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:58:06,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:58:06,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:58:06,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:58:06,771 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e [2025-03-04 09:58:06,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:58:06,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:58:06,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:58:06,988 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:58:06,988 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:58:06,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_tso.i [2025-03-04 09:58:08,222 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f02b3c5/a61b1f98d95d4c0f930d95e9a93d059a/FLAG6df41a5a4 [2025-03-04 09:58:08,518 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:58:08,518 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_tso.i [2025-03-04 09:58:08,534 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f02b3c5/a61b1f98d95d4c0f930d95e9a93d059a/FLAG6df41a5a4 [2025-03-04 09:58:08,550 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f02b3c5/a61b1f98d95d4c0f930d95e9a93d059a [2025-03-04 09:58:08,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:58:08,555 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:58:08,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:08,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:58:08,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:58:08,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6755a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08, skipping insertion in model container [2025-03-04 09:58:08,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:58:08,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:08,785 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:58:08,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:58:08,855 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:58:08,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08 WrapperNode [2025-03-04 09:58:08,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:58:08,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:08,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:58:08,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:58:08,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,888 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-03-04 09:58:08,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:58:08,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:58:08,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:58:08,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:58:08,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,899 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,920 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 09:58:08,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,925 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:58:08,937 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:58:08,937 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:58:08,937 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:58:08,938 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (1/1) ... [2025-03-04 09:58:08,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:58:08,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:58:08,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 09:58:08,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 09:58:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:58:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:58:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:58:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:58:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:58:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:58:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:58:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:58:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:58:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:58:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:58:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:58:08,999 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:58:09,097 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:58:09,099 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:58:09,217 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:58:09,217 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:58:09,294 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:58:09,296 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:58:09,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:09 BoogieIcfgContainer [2025-03-04 09:58:09,296 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:58:09,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:58:09,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:58:09,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:58:09,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:58:08" (1/3) ... [2025-03-04 09:58:09,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21181723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:09, skipping insertion in model container [2025-03-04 09:58:09,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:58:08" (2/3) ... [2025-03-04 09:58:09,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21181723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:58:09, skipping insertion in model container [2025-03-04 09:58:09,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:09" (3/3) ... [2025-03-04 09:58:09,305 INFO L128 eAbstractionObserver]: Analyzing ICFG safe034_tso.i [2025-03-04 09:58:09,317 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:58:09,318 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe034_tso.i that has 4 procedures, 44 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:58:09,318 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:58:09,360 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:58:09,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 45 transitions, 102 flow [2025-03-04 09:58:09,419 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2025-03-04 09:58:09,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:09,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2025-03-04 09:58:09,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 45 transitions, 102 flow [2025-03-04 09:58:09,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2025-03-04 09:58:09,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:58:09,447 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;@6e675e02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:58:09,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:58:09,461 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:58:09,463 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2025-03-04 09:58:09,463 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:09,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:09,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:09,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:09,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1673762870, now seen corresponding path program 1 times [2025-03-04 09:58:09,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:09,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208254869] [2025-03-04 09:58:09,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:09,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:09,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:09,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:09,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:09,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:09,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:09,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208254869] [2025-03-04 09:58:09,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208254869] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:09,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:09,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:58:09,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758504735] [2025-03-04 09:58:09,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:09,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:58:09,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:09,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:58:09,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:58:09,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2025-03-04 09:58:09,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:09,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:09,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2025-03-04 09:58:09,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:10,450 INFO L124 PetriNetUnfolderBase]: 6628/10231 cut-off events. [2025-03-04 09:58:10,450 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2025-03-04 09:58:10,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19737 conditions, 10231 events. 6628/10231 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 62110 event pairs, 6628 based on Foata normal form. 882/11051 useless extension candidates. Maximal degree in co-relation 19726. Up to 9387 conditions per place. [2025-03-04 09:58:10,511 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 29 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2025-03-04 09:58:10,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 145 flow [2025-03-04 09:58:10,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:58:10,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:58:10,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-03-04 09:58:10,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45185185185185184 [2025-03-04 09:58:10,543 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 61 transitions. [2025-03-04 09:58:10,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 145 flow [2025-03-04 09:58:10,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:58:10,550 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 80 flow [2025-03-04 09:58:10,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2025-03-04 09:58:10,555 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2025-03-04 09:58:10,555 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 80 flow [2025-03-04 09:58:10,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:10,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:10,556 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:10,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:58:10,556 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:10,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:10,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1673762349, now seen corresponding path program 1 times [2025-03-04 09:58:10,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:10,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443790820] [2025-03-04 09:58:10,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:10,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:10,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:58:10,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:58:10,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:10,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:10,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:10,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443790820] [2025-03-04 09:58:10,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443790820] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:10,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:10,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760255719] [2025-03-04 09:58:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:10,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:10,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:10,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:10,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:10,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2025-03-04 09:58:10,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:10,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:10,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2025-03-04 09:58:10,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:11,967 INFO L124 PetriNetUnfolderBase]: 13427/19760 cut-off events. [2025-03-04 09:58:11,967 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:58:11,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39082 conditions, 19760 events. 13427/19760 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 125470 event pairs, 3166 based on Foata normal form. 0/19297 useless extension candidates. Maximal degree in co-relation 39076. Up to 8093 conditions per place. [2025-03-04 09:58:12,039 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 52 selfloop transitions, 5 changer transitions 107/169 dead transitions. [2025-03-04 09:58:12,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 169 transitions, 678 flow [2025-03-04 09:58:12,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:58:12,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:58:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 247 transitions. [2025-03-04 09:58:12,041 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6098765432098765 [2025-03-04 09:58:12,041 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 80 flow. Second operand 9 states and 247 transitions. [2025-03-04 09:58:12,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 169 transitions, 678 flow [2025-03-04 09:58:12,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 169 transitions, 677 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:58:12,044 INFO L231 Difference]: Finished difference. Result has 60 places, 39 transitions, 147 flow [2025-03-04 09:58:12,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=147, PETRI_PLACES=60, PETRI_TRANSITIONS=39} [2025-03-04 09:58:12,045 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2025-03-04 09:58:12,045 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 39 transitions, 147 flow [2025-03-04 09:58:12,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:12,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:12,046 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:12,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:58:12,046 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:12,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:12,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1257410576, now seen corresponding path program 1 times [2025-03-04 09:58:12,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:12,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982806686] [2025-03-04 09:58:12,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:12,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:12,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:58:12,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:58:12,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:12,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:12,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:12,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:12,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982806686] [2025-03-04 09:58:12,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982806686] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:12,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:12,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:58:12,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926752391] [2025-03-04 09:58:12,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:12,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:58:12,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:12,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:58:12,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:58:12,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-04 09:58:12,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 39 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:12,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:12,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-04 09:58:12,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:12,956 INFO L124 PetriNetUnfolderBase]: 7097/11077 cut-off events. [2025-03-04 09:58:12,956 INFO L125 PetriNetUnfolderBase]: For 8976/8976 co-relation queries the response was YES. [2025-03-04 09:58:12,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27426 conditions, 11077 events. 7097/11077 cut-off events. For 8976/8976 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 68786 event pairs, 1262 based on Foata normal form. 478/11542 useless extension candidates. Maximal degree in co-relation 27411. Up to 5986 conditions per place. [2025-03-04 09:58:13,005 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 71 selfloop transitions, 5 changer transitions 1/82 dead transitions. [2025-03-04 09:58:13,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 82 transitions, 471 flow [2025-03-04 09:58:13,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:58:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:58:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2025-03-04 09:58:13,009 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6055555555555555 [2025-03-04 09:58:13,009 INFO L175 Difference]: Start difference. First operand has 60 places, 39 transitions, 147 flow. Second operand 4 states and 109 transitions. [2025-03-04 09:58:13,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 82 transitions, 471 flow [2025-03-04 09:58:13,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 82 transitions, 421 flow, removed 12 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:13,060 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 159 flow [2025-03-04 09:58:13,060 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-03-04 09:58:13,062 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2025-03-04 09:58:13,062 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 159 flow [2025-03-04 09:58:13,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:13,062 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:13,062 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:13,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:58:13,062 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:13,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:13,063 INFO L85 PathProgramCache]: Analyzing trace with hash 78487878, now seen corresponding path program 1 times [2025-03-04 09:58:13,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:13,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616453895] [2025-03-04 09:58:13,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:13,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:13,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 09:58:13,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 09:58:13,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:13,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:13,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:13,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616453895] [2025-03-04 09:58:13,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616453895] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:13,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:13,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:58:13,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919302034] [2025-03-04 09:58:13,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:13,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:58:13,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:13,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:58:13,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:58:13,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-04 09:58:13,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:13,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:13,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-04 09:58:13,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:13,668 INFO L124 PetriNetUnfolderBase]: 3884/6042 cut-off events. [2025-03-04 09:58:13,669 INFO L125 PetriNetUnfolderBase]: For 3563/3563 co-relation queries the response was YES. [2025-03-04 09:58:13,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15724 conditions, 6042 events. 3884/6042 cut-off events. For 3563/3563 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 32849 event pairs, 702 based on Foata normal form. 334/6363 useless extension candidates. Maximal degree in co-relation 15709. Up to 2055 conditions per place. [2025-03-04 09:58:13,705 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 90 selfloop transitions, 8 changer transitions 2/105 dead transitions. [2025-03-04 09:58:13,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 105 transitions, 584 flow [2025-03-04 09:58:13,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:58:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:58:13,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2025-03-04 09:58:13,707 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6177777777777778 [2025-03-04 09:58:13,707 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 159 flow. Second operand 5 states and 139 transitions. [2025-03-04 09:58:13,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 105 transitions, 584 flow [2025-03-04 09:58:13,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 105 transitions, 570 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:13,712 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 195 flow [2025-03-04 09:58:13,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2025-03-04 09:58:13,713 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2025-03-04 09:58:13,713 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 195 flow [2025-03-04 09:58:13,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:13,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:13,713 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] [2025-03-04 09:58:13,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:58:13,713 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:13,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:13,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1087119818, now seen corresponding path program 1 times [2025-03-04 09:58:13,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:13,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860231466] [2025-03-04 09:58:13,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:13,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:13,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 09:58:13,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 09:58:13,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:13,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:13,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:13,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860231466] [2025-03-04 09:58:13,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860231466] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:13,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:13,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:58:13,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701040537] [2025-03-04 09:58:13,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:13,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:13,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:13,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:13,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:13,872 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-04 09:58:13,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:13,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:13,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-04 09:58:13,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:14,168 INFO L124 PetriNetUnfolderBase]: 2425/3713 cut-off events. [2025-03-04 09:58:14,169 INFO L125 PetriNetUnfolderBase]: For 3878/3878 co-relation queries the response was YES. [2025-03-04 09:58:14,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10402 conditions, 3713 events. 2425/3713 cut-off events. For 3878/3878 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 18246 event pairs, 591 based on Foata normal form. 120/3820 useless extension candidates. Maximal degree in co-relation 10387. Up to 1410 conditions per place. [2025-03-04 09:58:14,185 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 71 selfloop transitions, 11 changer transitions 5/92 dead transitions. [2025-03-04 09:58:14,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 92 transitions, 525 flow [2025-03-04 09:58:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2025-03-04 09:58:14,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2025-03-04 09:58:14,186 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 195 flow. Second operand 6 states and 139 transitions. [2025-03-04 09:58:14,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 92 transitions, 525 flow [2025-03-04 09:58:14,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 92 transitions, 484 flow, removed 12 selfloop flow, removed 4 redundant places. [2025-03-04 09:58:14,203 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 201 flow [2025-03-04 09:58:14,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=201, PETRI_PLACES=59, PETRI_TRANSITIONS=45} [2025-03-04 09:58:14,204 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 10 predicate places. [2025-03-04 09:58:14,204 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 201 flow [2025-03-04 09:58:14,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:14,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:14,204 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:14,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:58:14,204 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:14,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:14,205 INFO L85 PathProgramCache]: Analyzing trace with hash -895955993, now seen corresponding path program 1 times [2025-03-04 09:58:14,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:14,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032167571] [2025-03-04 09:58:14,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:58:14,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:14,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 09:58:14,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 09:58:14,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:58:14,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:14,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:14,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032167571] [2025-03-04 09:58:14,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032167571] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:14,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:14,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:58:14,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330734440] [2025-03-04 09:58:14,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:14,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:58:14,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:14,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:58:14,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:58:14,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2025-03-04 09:58:14,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 201 flow. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:14,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:14,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2025-03-04 09:58:14,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:14,933 INFO L124 PetriNetUnfolderBase]: 3285/5037 cut-off events. [2025-03-04 09:58:14,934 INFO L125 PetriNetUnfolderBase]: For 5210/5210 co-relation queries the response was YES. [2025-03-04 09:58:14,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14131 conditions, 5037 events. 3285/5037 cut-off events. For 5210/5210 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 26379 event pairs, 269 based on Foata normal form. 8/5043 useless extension candidates. Maximal degree in co-relation 14115. Up to 1820 conditions per place. [2025-03-04 09:58:14,948 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 70 selfloop transitions, 8 changer transitions 54/137 dead transitions. [2025-03-04 09:58:14,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 137 transitions, 877 flow [2025-03-04 09:58:14,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:58:14,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:58:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 182 transitions. [2025-03-04 09:58:14,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5055555555555555 [2025-03-04 09:58:14,949 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 201 flow. Second operand 8 states and 182 transitions. [2025-03-04 09:58:14,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 137 transitions, 877 flow [2025-03-04 09:58:14,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 137 transitions, 667 flow, removed 38 selfloop flow, removed 10 redundant places. [2025-03-04 09:58:14,973 INFO L231 Difference]: Finished difference. Result has 60 places, 46 transitions, 166 flow [2025-03-04 09:58:14,973 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=166, PETRI_PLACES=60, PETRI_TRANSITIONS=46} [2025-03-04 09:58:14,975 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2025-03-04 09:58:14,975 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 46 transitions, 166 flow [2025-03-04 09:58:14,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:14,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:58:14,976 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:58:14,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:58:14,976 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:58:14,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:58:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash 378312443, now seen corresponding path program 2 times [2025-03-04 09:58:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:58:14,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229517586] [2025-03-04 09:58:14,977 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:58:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:58:14,985 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-03-04 09:58:14,990 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 09:58:14,990 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:58:14,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:58:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:58:15,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:58:15,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229517586] [2025-03-04 09:58:15,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229517586] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:58:15,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:58:15,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:58:15,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481128191] [2025-03-04 09:58:15,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:58:15,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:58:15,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:58:15,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:58:15,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:58:15,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2025-03-04 09:58:15,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 46 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:15,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:58:15,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2025-03-04 09:58:15,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:58:15,343 INFO L124 PetriNetUnfolderBase]: 2439/3886 cut-off events. [2025-03-04 09:58:15,343 INFO L125 PetriNetUnfolderBase]: For 1267/1267 co-relation queries the response was YES. [2025-03-04 09:58:15,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9450 conditions, 3886 events. 2439/3886 cut-off events. For 1267/1267 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 20314 event pairs, 592 based on Foata normal form. 8/3883 useless extension candidates. Maximal degree in co-relation 9442. Up to 1825 conditions per place. [2025-03-04 09:58:15,352 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 0 selfloop transitions, 0 changer transitions 87/87 dead transitions. [2025-03-04 09:58:15,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 87 transitions, 466 flow [2025-03-04 09:58:15,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:58:15,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:58:15,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2025-03-04 09:58:15,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43703703703703706 [2025-03-04 09:58:15,354 INFO L175 Difference]: Start difference. First operand has 60 places, 46 transitions, 166 flow. Second operand 6 states and 118 transitions. [2025-03-04 09:58:15,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 87 transitions, 466 flow [2025-03-04 09:58:15,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 87 transitions, 462 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-04 09:58:15,356 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2025-03-04 09:58:15,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2025-03-04 09:58:15,357 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2025-03-04 09:58:15,357 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2025-03-04 09:58:15,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:58:15,360 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:58:15,360 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:58:15,360 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:58:15,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:58:15,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:58:15,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:58:15,361 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2025-03-04 09:58:15,364 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:58:15,364 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:58:15,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:58:15 BasicIcfg [2025-03-04 09:58:15,371 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:58:15,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:58:15,372 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:58:15,372 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:58:15,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:58:09" (3/4) ... [2025-03-04 09:58:15,375 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:58:15,377 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:58:15,377 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:58:15,377 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:58:15,381 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-04 09:58:15,381 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-04 09:58:15,381 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-04 09:58:15,381 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 09:58:15,443 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:58:15,445 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:58:15,445 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:58:15,445 INFO L158 Benchmark]: Toolchain (without parser) took 6890.90ms. Allocated memory was 142.6MB in the beginning and 931.1MB in the end (delta: 788.5MB). Free memory was 108.4MB in the beginning and 538.1MB in the end (delta: -429.7MB). Peak memory consumption was 360.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:15,446 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 201.3MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:15,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.63ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 88.1MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 09:58:15,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.38ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 87.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:15,447 INFO L158 Benchmark]: Boogie Preprocessor took 46.83ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 84.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:58:15,447 INFO L158 Benchmark]: IcfgBuilder took 359.34ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 65.0MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:58:15,447 INFO L158 Benchmark]: TraceAbstraction took 6072.48ms. Allocated memory was 142.6MB in the beginning and 931.1MB in the end (delta: 788.5MB). Free memory was 64.1MB in the beginning and 542.5MB in the end (delta: -478.4MB). Peak memory consumption was 310.1MB. Max. memory is 16.1GB. [2025-03-04 09:58:15,448 INFO L158 Benchmark]: Witness Printer took 73.28ms. Allocated memory is still 931.1MB. Free memory was 542.5MB in the beginning and 538.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:58:15,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16ms. Allocated memory is still 201.3MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.63ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 88.1MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.38ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 87.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.83ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 84.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 359.34ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 65.0MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6072.48ms. Allocated memory was 142.6MB in the beginning and 931.1MB in the end (delta: 788.5MB). Free memory was 64.1MB in the beginning and 542.5MB in the end (delta: -478.4MB). Peak memory consumption was 310.1MB. Max. memory is 16.1GB. * Witness Printer took 73.28ms. Allocated memory is still 931.1MB. Free memory was 542.5MB in the beginning and 538.1MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 70 locations, 5 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: 6.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 464 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 460 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1195 IncrementalHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 2 mSDtfsCounter, 1195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=5, InterpolantAutomatonStates: 41, 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 607 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 09:58:15,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE