./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe011_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/safe011_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 c5d6625a918041bec3ddf6b8a37ec84fd94f58444755be51392d35f521d3d51e --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:55:16,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:55:16,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:55:16,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:55:16,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:55:16,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:55:16,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:55:16,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:55:16,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:55:16,257 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:55:16,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:55:16,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:55:16,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:55:16,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:55:16,259 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:55:16,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:55:16,259 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:55:16,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:55:16,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:55:16,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:55:16,259 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:55:16,260 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:55:16,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:55:16,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:55:16,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:55:16,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:55:16,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:55:16,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:55:16,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:55:16,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:55:16,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:55:16,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:55:16,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:55:16,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:55:16,262 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 -> c5d6625a918041bec3ddf6b8a37ec84fd94f58444755be51392d35f521d3d51e [2025-03-04 09:55:16,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:55:16,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:55:16,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:55:16,531 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:55:16,531 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:55:16,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe011_tso.i [2025-03-04 09:55:17,692 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbaeef9af/b9db0c968f1f419c9a777bb8fde86f25/FLAGa7ec1c2d2 [2025-03-04 09:55:17,946 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:55:17,948 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe011_tso.i [2025-03-04 09:55:17,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbaeef9af/b9db0c968f1f419c9a777bb8fde86f25/FLAGa7ec1c2d2 [2025-03-04 09:55:18,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbaeef9af/b9db0c968f1f419c9a777bb8fde86f25 [2025-03-04 09:55:18,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:55:18,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:55:18,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:55:18,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:55:18,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:55:18,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a436c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18, skipping insertion in model container [2025-03-04 09:55:18,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:55:18,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:55:18,534 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:55:18,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:55:18,591 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:55:18,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18 WrapperNode [2025-03-04 09:55:18,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:55:18,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:55:18,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:55:18,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:55:18,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,629 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2025-03-04 09:55:18,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:55:18,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:55:18,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:55:18,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:55:18,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,640 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,653 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 09:55:18,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,658 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:55:18,669 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:55:18,670 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:55:18,670 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:55:18,671 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (1/1) ... [2025-03-04 09:55:18,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:55:18,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:55:18,698 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 09:55:18,701 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 09:55:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:55:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:55:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:55:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:55:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:55:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:55:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:55:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:55:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:55:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:55:18,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:55:18,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:55:18,723 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 09:55:18,827 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:55:18,829 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:55:18,963 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:55:18,964 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:55:19,034 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:55:19,034 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:55:19,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:55:19 BoogieIcfgContainer [2025-03-04 09:55:19,035 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:55:19,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:55:19,036 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:55:19,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:55:19,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:55:18" (1/3) ... [2025-03-04 09:55:19,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fa1753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:55:19, skipping insertion in model container [2025-03-04 09:55:19,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:18" (2/3) ... [2025-03-04 09:55:19,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fa1753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:55:19, skipping insertion in model container [2025-03-04 09:55:19,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:55:19" (3/3) ... [2025-03-04 09:55:19,042 INFO L128 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2025-03-04 09:55:19,056 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:55:19,058 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe011_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:55:19,058 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:55:19,098 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:55:19,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-03-04 09:55:19,156 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-03-04 09:55:19,161 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:55:19,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-03-04 09:55:19,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-03-04 09:55:19,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-03-04 09:55:19,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:55:19,183 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;@5fe88b42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:55:19,184 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:55:19,198 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:55:19,199 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-03-04 09:55:19,199 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:55:19,199 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:19,200 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:19,200 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 09:55:19,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:19,205 INFO L85 PathProgramCache]: Analyzing trace with hash 775915203, now seen corresponding path program 1 times [2025-03-04 09:55:19,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:19,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249969362] [2025-03-04 09:55:19,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:19,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:19,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:55:19,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:55:19,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:19,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:19,425 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 09:55:19,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:19,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249969362] [2025-03-04 09:55:19,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249969362] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:19,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:19,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:55:19,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815387761] [2025-03-04 09:55:19,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:19,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:55:19,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:19,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:55:19,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:55:19,458 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:19,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 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 09:55:19,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:19,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:19,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:20,041 INFO L124 PetriNetUnfolderBase]: 4775/7425 cut-off events. [2025-03-04 09:55:20,042 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-03-04 09:55:20,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14320 conditions, 7425 events. 4775/7425 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 43753 event pairs, 4775 based on Foata normal form. 648/8026 useless extension candidates. Maximal degree in co-relation 14309. Up to 6804 conditions per place. [2025-03-04 09:55:20,087 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-03-04 09:55:20,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-03-04 09:55:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:55:20,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:55:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-03-04 09:55:20,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-03-04 09:55:20,097 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-03-04 09:55:20,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-03-04 09:55:20,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:55:20,102 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-03-04 09:55:20,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-03-04 09:55:20,109 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-03-04 09:55:20,110 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-03-04 09:55:20,110 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 09:55:20,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:20,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:20,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:55:20,110 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 09:55:20,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:20,111 INFO L85 PathProgramCache]: Analyzing trace with hash 775915600, now seen corresponding path program 1 times [2025-03-04 09:55:20,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:20,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876434120] [2025-03-04 09:55:20,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:20,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:20,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:55:20,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:55:20,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:20,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:20,385 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 09:55:20,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:20,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876434120] [2025-03-04 09:55:20,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876434120] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:20,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:20,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:55:20,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192980331] [2025-03-04 09:55:20,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:20,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:55:20,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:20,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:55:20,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:55:20,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:20,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 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 09:55:20,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:20,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:20,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:21,518 INFO L124 PetriNetUnfolderBase]: 10814/15935 cut-off events. [2025-03-04 09:55:21,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:55:21,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31608 conditions, 15935 events. 10814/15935 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 96781 event pairs, 2553 based on Foata normal form. 0/15536 useless extension candidates. Maximal degree in co-relation 31602. Up to 5385 conditions per place. [2025-03-04 09:55:21,571 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 47 selfloop transitions, 6 changer transitions 97/155 dead transitions. [2025-03-04 09:55:21,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 155 transitions, 622 flow [2025-03-04 09:55:21,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:55:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:55:21,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2025-03-04 09:55:21,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2025-03-04 09:55:21,572 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 233 transitions. [2025-03-04 09:55:21,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 155 transitions, 622 flow [2025-03-04 09:55:21,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 155 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:55:21,577 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2025-03-04 09:55:21,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2025-03-04 09:55:21,578 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2025-03-04 09:55:21,578 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2025-03-04 09:55:21,578 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 09:55:21,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:21,578 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 09:55:21,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:55:21,579 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 09:55:21,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:21,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1928231185, now seen corresponding path program 1 times [2025-03-04 09:55:21,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:21,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488748842] [2025-03-04 09:55:21,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:21,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:21,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:55:21,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:55:21,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:21,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:21,729 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 09:55:21,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:21,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488748842] [2025-03-04 09:55:21,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488748842] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:21,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:21,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:21,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064164597] [2025-03-04 09:55:21,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:21,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:21,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:21,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:21,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:21,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:21,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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 09:55:21,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:21,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:21,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:22,503 INFO L124 PetriNetUnfolderBase]: 8219/12285 cut-off events. [2025-03-04 09:55:22,503 INFO L125 PetriNetUnfolderBase]: For 14263/14263 co-relation queries the response was YES. [2025-03-04 09:55:22,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33697 conditions, 12285 events. 8219/12285 cut-off events. For 14263/14263 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 72271 event pairs, 941 based on Foata normal form. 354/12628 useless extension candidates. Maximal degree in co-relation 33682. Up to 4433 conditions per place. [2025-03-04 09:55:22,672 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 58 selfloop transitions, 7 changer transitions 86/156 dead transitions. [2025-03-04 09:55:22,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 156 transitions, 913 flow [2025-03-04 09:55:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:55:22,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:55:22,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 237 transitions. [2025-03-04 09:55:22,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5511627906976744 [2025-03-04 09:55:22,677 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 237 transitions. [2025-03-04 09:55:22,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 156 transitions, 913 flow [2025-03-04 09:55:22,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 156 transitions, 825 flow, removed 21 selfloop flow, removed 4 redundant places. [2025-03-04 09:55:22,746 INFO L231 Difference]: Finished difference. Result has 65 places, 41 transitions, 207 flow [2025-03-04 09:55:22,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=207, PETRI_PLACES=65, PETRI_TRANSITIONS=41} [2025-03-04 09:55:22,747 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2025-03-04 09:55:22,747 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 41 transitions, 207 flow [2025-03-04 09:55:22,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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 09:55:22,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:22,748 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 09:55:22,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:55:22,748 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 09:55:22,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash 475428207, now seen corresponding path program 1 times [2025-03-04 09:55:22,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:22,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267004906] [2025-03-04 09:55:22,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:22,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:55:22,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:55:22,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:22,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:22,889 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 09:55:22,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:22,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267004906] [2025-03-04 09:55:22,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267004906] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:22,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:22,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148424155] [2025-03-04 09:55:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:22,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:22,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:22,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:22,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:22,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:22,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 41 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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 09:55:22,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:22,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:22,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:23,904 INFO L124 PetriNetUnfolderBase]: 8555/12554 cut-off events. [2025-03-04 09:55:23,905 INFO L125 PetriNetUnfolderBase]: For 33311/33311 co-relation queries the response was YES. [2025-03-04 09:55:23,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38917 conditions, 12554 events. 8555/12554 cut-off events. For 33311/33311 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 72876 event pairs, 694 based on Foata normal form. 359/12905 useless extension candidates. Maximal degree in co-relation 38895. Up to 3968 conditions per place. [2025-03-04 09:55:23,950 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 81 selfloop transitions, 19 changer transitions 113/218 dead transitions. [2025-03-04 09:55:23,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 218 transitions, 1461 flow [2025-03-04 09:55:23,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 09:55:23,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-04 09:55:23,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 309 transitions. [2025-03-04 09:55:23,952 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.552772808586762 [2025-03-04 09:55:23,952 INFO L175 Difference]: Start difference. First operand has 65 places, 41 transitions, 207 flow. Second operand 13 states and 309 transitions. [2025-03-04 09:55:23,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 218 transitions, 1461 flow [2025-03-04 09:55:23,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 218 transitions, 1384 flow, removed 36 selfloop flow, removed 3 redundant places. [2025-03-04 09:55:23,988 INFO L231 Difference]: Finished difference. Result has 80 places, 53 transitions, 418 flow [2025-03-04 09:55:23,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=418, PETRI_PLACES=80, PETRI_TRANSITIONS=53} [2025-03-04 09:55:23,988 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 33 predicate places. [2025-03-04 09:55:23,988 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 53 transitions, 418 flow [2025-03-04 09:55:23,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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 09:55:23,988 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:23,988 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:23,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:55:23,989 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 09:55:23,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:23,989 INFO L85 PathProgramCache]: Analyzing trace with hash -961321458, now seen corresponding path program 1 times [2025-03-04 09:55:23,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:23,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381265730] [2025-03-04 09:55:23,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:23,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:23,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 09:55:23,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 09:55:23,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:23,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:24,099 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 09:55:24,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:24,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381265730] [2025-03-04 09:55:24,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381265730] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:24,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:24,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:24,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272200172] [2025-03-04 09:55:24,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:24,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:24,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:24,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:24,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:24,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:24,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 53 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 09:55:24,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:24,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:24,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:24,840 INFO L124 PetriNetUnfolderBase]: 7939/11862 cut-off events. [2025-03-04 09:55:24,840 INFO L125 PetriNetUnfolderBase]: For 55138/55153 co-relation queries the response was YES. [2025-03-04 09:55:24,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43162 conditions, 11862 events. 7939/11862 cut-off events. For 55138/55153 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 69686 event pairs, 1127 based on Foata normal form. 278/12135 useless extension candidates. Maximal degree in co-relation 43129. Up to 5057 conditions per place. [2025-03-04 09:55:24,896 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 67 selfloop transitions, 22 changer transitions 75/169 dead transitions. [2025-03-04 09:55:24,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 169 transitions, 1428 flow [2025-03-04 09:55:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:55:24,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:55:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 226 transitions. [2025-03-04 09:55:24,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5255813953488372 [2025-03-04 09:55:24,900 INFO L175 Difference]: Start difference. First operand has 80 places, 53 transitions, 418 flow. Second operand 10 states and 226 transitions. [2025-03-04 09:55:24,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 169 transitions, 1428 flow [2025-03-04 09:55:25,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 169 transitions, 1320 flow, removed 54 selfloop flow, removed 10 redundant places. [2025-03-04 09:55:25,043 INFO L231 Difference]: Finished difference. Result has 80 places, 63 transitions, 605 flow [2025-03-04 09:55:25,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=605, PETRI_PLACES=80, PETRI_TRANSITIONS=63} [2025-03-04 09:55:25,044 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 33 predicate places. [2025-03-04 09:55:25,044 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 63 transitions, 605 flow [2025-03-04 09:55:25,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 09:55:25,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:25,045 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:25,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:55:25,045 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 09:55:25,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:25,045 INFO L85 PathProgramCache]: Analyzing trace with hash 240508238, now seen corresponding path program 1 times [2025-03-04 09:55:25,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:25,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791620718] [2025-03-04 09:55:25,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:25,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:25,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 09:55:25,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 09:55:25,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:25,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:25,141 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 09:55:25,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:25,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791620718] [2025-03-04 09:55:25,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791620718] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:25,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:25,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:25,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482763246] [2025-03-04 09:55:25,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:25,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:25,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:25,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:25,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:25,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:25,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 63 transitions, 605 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 09:55:25,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:25,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:25,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:25,819 INFO L124 PetriNetUnfolderBase]: 7371/11000 cut-off events. [2025-03-04 09:55:25,819 INFO L125 PetriNetUnfolderBase]: For 49178/49178 co-relation queries the response was YES. [2025-03-04 09:55:25,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40690 conditions, 11000 events. 7371/11000 cut-off events. For 49178/49178 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 63139 event pairs, 1172 based on Foata normal form. 170/11166 useless extension candidates. Maximal degree in co-relation 40656. Up to 4866 conditions per place. [2025-03-04 09:55:25,875 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 69 selfloop transitions, 29 changer transitions 69/172 dead transitions. [2025-03-04 09:55:25,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 172 transitions, 1651 flow [2025-03-04 09:55:25,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:55:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:55:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 222 transitions. [2025-03-04 09:55:25,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5162790697674419 [2025-03-04 09:55:25,877 INFO L175 Difference]: Start difference. First operand has 80 places, 63 transitions, 605 flow. Second operand 10 states and 222 transitions. [2025-03-04 09:55:25,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 172 transitions, 1651 flow [2025-03-04 09:55:25,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 172 transitions, 1573 flow, removed 39 selfloop flow, removed 6 redundant places. [2025-03-04 09:55:25,985 INFO L231 Difference]: Finished difference. Result has 84 places, 68 transitions, 734 flow [2025-03-04 09:55:25,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=734, PETRI_PLACES=84, PETRI_TRANSITIONS=68} [2025-03-04 09:55:25,986 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 37 predicate places. [2025-03-04 09:55:25,986 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 68 transitions, 734 flow [2025-03-04 09:55:25,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 09:55:25,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:25,986 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:25,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:55:25,986 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 09:55:25,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:25,987 INFO L85 PathProgramCache]: Analyzing trace with hash -638462894, now seen corresponding path program 1 times [2025-03-04 09:55:25,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:25,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384890835] [2025-03-04 09:55:25,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:25,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:25,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:55:25,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:55:25,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:25,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:26,092 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 09:55:26,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:26,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384890835] [2025-03-04 09:55:26,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384890835] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:26,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:26,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:26,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434202644] [2025-03-04 09:55:26,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:26,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:26,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:26,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:26,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:26,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:26,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 68 transitions, 734 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:26,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:26,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:26,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:26,933 INFO L124 PetriNetUnfolderBase]: 8594/12752 cut-off events. [2025-03-04 09:55:26,933 INFO L125 PetriNetUnfolderBase]: For 65969/65969 co-relation queries the response was YES. [2025-03-04 09:55:26,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47089 conditions, 12752 events. 8594/12752 cut-off events. For 65969/65969 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 74167 event pairs, 1487 based on Foata normal form. 265/13008 useless extension candidates. Maximal degree in co-relation 47052. Up to 5128 conditions per place. [2025-03-04 09:55:26,995 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 56 selfloop transitions, 5 changer transitions 98/164 dead transitions. [2025-03-04 09:55:26,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 164 transitions, 1722 flow [2025-03-04 09:55:26,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:55:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:55:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 182 transitions. [2025-03-04 09:55:26,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5290697674418605 [2025-03-04 09:55:26,996 INFO L175 Difference]: Start difference. First operand has 84 places, 68 transitions, 734 flow. Second operand 8 states and 182 transitions. [2025-03-04 09:55:26,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 164 transitions, 1722 flow [2025-03-04 09:55:27,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 164 transitions, 1626 flow, removed 29 selfloop flow, removed 9 redundant places. [2025-03-04 09:55:27,106 INFO L231 Difference]: Finished difference. Result has 82 places, 45 transitions, 370 flow [2025-03-04 09:55:27,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=370, PETRI_PLACES=82, PETRI_TRANSITIONS=45} [2025-03-04 09:55:27,106 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 35 predicate places. [2025-03-04 09:55:27,106 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 45 transitions, 370 flow [2025-03-04 09:55:27,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:27,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:27,106 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:27,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:55:27,106 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:27,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1747086809, now seen corresponding path program 1 times [2025-03-04 09:55:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:27,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107999919] [2025-03-04 09:55:27,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:27,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:55:27,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:55:27,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:27,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:27,183 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 09:55:27,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:27,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107999919] [2025-03-04 09:55:27,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107999919] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:27,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:27,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:55:27,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919302034] [2025-03-04 09:55:27,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:27,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:55:27,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:27,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:55:27,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:55:27,186 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:55:27,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 45 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 09:55:27,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:27,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:55:27,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:27,530 INFO L124 PetriNetUnfolderBase]: 2936/4645 cut-off events. [2025-03-04 09:55:27,530 INFO L125 PetriNetUnfolderBase]: For 23407/23407 co-relation queries the response was YES. [2025-03-04 09:55:27,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16730 conditions, 4645 events. 2936/4645 cut-off events. For 23407/23407 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 24919 event pairs, 517 based on Foata normal form. 208/4850 useless extension candidates. Maximal degree in co-relation 16693. Up to 2371 conditions per place. [2025-03-04 09:55:27,553 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 73 selfloop transitions, 5 changer transitions 9/92 dead transitions. [2025-03-04 09:55:27,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 92 transitions, 964 flow [2025-03-04 09:55:27,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:55:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:55:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2025-03-04 09:55:27,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2025-03-04 09:55:27,554 INFO L175 Difference]: Start difference. First operand has 82 places, 45 transitions, 370 flow. Second operand 4 states and 103 transitions. [2025-03-04 09:55:27,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 92 transitions, 964 flow [2025-03-04 09:55:27,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 92 transitions, 749 flow, removed 29 selfloop flow, removed 15 redundant places. [2025-03-04 09:55:27,574 INFO L231 Difference]: Finished difference. Result has 68 places, 48 transitions, 297 flow [2025-03-04 09:55:27,574 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=297, PETRI_PLACES=68, PETRI_TRANSITIONS=48} [2025-03-04 09:55:27,575 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 21 predicate places. [2025-03-04 09:55:27,575 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 48 transitions, 297 flow [2025-03-04 09:55:27,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 09:55:27,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:27,575 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] [2025-03-04 09:55:27,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:55:27,575 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:27,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:27,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1017008368, now seen corresponding path program 1 times [2025-03-04 09:55:27,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:27,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860231466] [2025-03-04 09:55:27,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:27,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:27,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 09:55:27,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 09:55:27,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:27,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:27,663 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 09:55:27,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:27,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860231466] [2025-03-04 09:55:27,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860231466] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:27,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:27,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:55:27,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72412557] [2025-03-04 09:55:27,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:27,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:55:27,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:27,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:55:27,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:55:27,664 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:55:27,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 48 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 09:55:27,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:27,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:55:27,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:27,899 INFO L124 PetriNetUnfolderBase]: 1768/2811 cut-off events. [2025-03-04 09:55:27,900 INFO L125 PetriNetUnfolderBase]: For 7204/7204 co-relation queries the response was YES. [2025-03-04 09:55:27,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9444 conditions, 2811 events. 1768/2811 cut-off events. For 7204/7204 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 13404 event pairs, 276 based on Foata normal form. 154/2962 useless extension candidates. Maximal degree in co-relation 9418. Up to 961 conditions per place. [2025-03-04 09:55:27,910 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 69 selfloop transitions, 8 changer transitions 23/105 dead transitions. [2025-03-04 09:55:27,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 105 transitions, 869 flow [2025-03-04 09:55:27,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:55:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:55:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-03-04 09:55:27,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5906976744186047 [2025-03-04 09:55:27,912 INFO L175 Difference]: Start difference. First operand has 68 places, 48 transitions, 297 flow. Second operand 5 states and 127 transitions. [2025-03-04 09:55:27,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 105 transitions, 869 flow [2025-03-04 09:55:27,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 105 transitions, 823 flow, removed 16 selfloop flow, removed 5 redundant places. [2025-03-04 09:55:27,918 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 295 flow [2025-03-04 09:55:27,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=295, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2025-03-04 09:55:27,919 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2025-03-04 09:55:27,919 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 295 flow [2025-03-04 09:55:27,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 09:55:27,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:27,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:27,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:55:27,920 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:27,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:27,920 INFO L85 PathProgramCache]: Analyzing trace with hash -915380569, now seen corresponding path program 1 times [2025-03-04 09:55:27,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:27,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701040537] [2025-03-04 09:55:27,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:27,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:27,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:55:27,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:55:27,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:27,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:28,005 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 09:55:28,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:28,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701040537] [2025-03-04 09:55:28,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701040537] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:28,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:28,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:28,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513243463] [2025-03-04 09:55:28,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:28,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:28,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:28,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:28,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:28,007 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:55:28,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 295 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 09:55:28,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:28,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:55:28,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:28,189 INFO L124 PetriNetUnfolderBase]: 1039/1672 cut-off events. [2025-03-04 09:55:28,189 INFO L125 PetriNetUnfolderBase]: For 4160/4160 co-relation queries the response was YES. [2025-03-04 09:55:28,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5781 conditions, 1672 events. 1039/1672 cut-off events. For 4160/4160 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7612 event pairs, 195 based on Foata normal form. 60/1729 useless extension candidates. Maximal degree in co-relation 5766. Up to 658 conditions per place. [2025-03-04 09:55:28,195 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2025-03-04 09:55:28,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 84 transitions, 663 flow [2025-03-04 09:55:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:55:28,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:55:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2025-03-04 09:55:28,196 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49224806201550386 [2025-03-04 09:55:28,196 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 295 flow. Second operand 6 states and 127 transitions. [2025-03-04 09:55:28,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 84 transitions, 663 flow [2025-03-04 09:55:28,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 604 flow, removed 4 selfloop flow, removed 7 redundant places. [2025-03-04 09:55:28,202 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2025-03-04 09:55:28,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=57, 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=62, PETRI_TRANSITIONS=0} [2025-03-04 09:55:28,204 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 15 predicate places. [2025-03-04 09:55:28,204 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2025-03-04 09:55:28,204 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 09:55:28,208 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:55:28,208 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:55:28,208 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:55:28,208 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:55:28,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:55:28,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 09:55:28,211 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:28,213 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:55:28,213 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:55:28,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:55:28 BasicIcfg [2025-03-04 09:55:28,217 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:55:28,217 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:55:28,218 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:55:28,218 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:55:28,218 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:55:19" (3/4) ... [2025-03-04 09:55:28,221 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:55:28,223 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:55:28,223 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:55:28,223 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:55:28,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-04 09:55:28,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-04 09:55:28,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-04 09:55:28,226 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 09:55:28,289 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:55:28,291 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:55:28,291 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:55:28,292 INFO L158 Benchmark]: Toolchain (without parser) took 10025.27ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 112.9MB in the beginning and 902.6MB in the end (delta: -789.7MB). Peak memory consumption was 892.3MB. Max. memory is 16.1GB. [2025-03-04 09:55:28,292 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:55:28,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.31ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 92.6MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:55:28,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.29ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:55:28,293 INFO L158 Benchmark]: Boogie Preprocessor took 35.40ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 89.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:55:28,293 INFO L158 Benchmark]: IcfgBuilder took 365.58ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 70.0MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:55:28,293 INFO L158 Benchmark]: TraceAbstraction took 9180.78ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 69.0MB in the beginning and 906.8MB in the end (delta: -837.8MB). Peak memory consumption was 850.4MB. Max. memory is 16.1GB. [2025-03-04 09:55:28,293 INFO L158 Benchmark]: Witness Printer took 73.94ms. Allocated memory is still 1.8GB. Free memory was 906.8MB in the beginning and 902.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:55:28,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.31ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 92.6MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.29ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.40ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 89.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 365.58ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 70.0MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9180.78ms. Allocated memory was 142.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 69.0MB in the beginning and 906.8MB in the end (delta: -837.8MB). Peak memory consumption was 850.4MB. Max. memory is 16.1GB. * Witness Printer took 73.94ms. Allocated memory is still 1.8GB. Free memory was 906.8MB in the beginning and 902.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 774]: 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, 66 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: 9.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 843 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 840 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1786 IncrementalHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 1 mSDtfsCounter, 1786 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=734occurred in iteration=6, InterpolantAutomatonStates: 78, 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, 1.1s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 697 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 09:55:28,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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