./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe005_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/safe005_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 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:54:36,250 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:54:36,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:54:36,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:54:36,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:54:36,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:54:36,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:54:36,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:54:36,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:54:36,323 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:54:36,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:54:36,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:54:36,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:54:36,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:54:36,323 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:54:36,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:54:36,323 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:54:36,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:54:36,324 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:54:36,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:54:36,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:54:36,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:54:36,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:54:36,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:54:36,325 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:54:36,325 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:54:36,325 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 -> 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce [2025-03-04 09:54:36,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:54:36,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:54:36,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:54:36,550 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:54:36,550 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:54:36,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe005_tso.i [2025-03-04 09:54:37,695 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6971ce50a/4e96d78789404b2d84b0160db4ae68b0/FLAG387eef9c8 [2025-03-04 09:54:38,019 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:54:38,021 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_tso.i [2025-03-04 09:54:38,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6971ce50a/4e96d78789404b2d84b0160db4ae68b0/FLAG387eef9c8 [2025-03-04 09:54:38,255 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6971ce50a/4e96d78789404b2d84b0160db4ae68b0 [2025-03-04 09:54:38,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:54:38,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:54:38,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:54:38,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:54:38,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:54:38,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5912579c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38, skipping insertion in model container [2025-03-04 09:54:38,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:54:38,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:54:38,561 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:54:38,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:54:38,631 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:54:38,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38 WrapperNode [2025-03-04 09:54:38,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:54:38,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:54:38,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:54:38,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:54:38,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,659 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-03-04 09:54:38,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:54:38,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:54:38,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:54:38,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:54:38,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,677 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 09:54:38,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,685 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:54:38,690 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:54:38,690 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:54:38,690 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:54:38,690 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (1/1) ... [2025-03-04 09:54:38,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:54:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:54:38,713 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 09:54:38,715 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 09:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:54:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:54:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:54:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:54:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:54:38,732 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 09:54:38,819 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:54:38,821 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:54:38,982 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:54:38,982 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:54:39,037 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:54:39,038 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:54:39,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:54:39 BoogieIcfgContainer [2025-03-04 09:54:39,038 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:54:39,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:54:39,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:54:39,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:54:39,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:54:38" (1/3) ... [2025-03-04 09:54:39,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6418d266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:54:39, skipping insertion in model container [2025-03-04 09:54:39,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:54:38" (2/3) ... [2025-03-04 09:54:39,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6418d266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:54:39, skipping insertion in model container [2025-03-04 09:54:39,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:54:39" (3/3) ... [2025-03-04 09:54:39,050 INFO L128 eAbstractionObserver]: Analyzing ICFG safe005_tso.i [2025-03-04 09:54:39,061 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:54:39,062 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe005_tso.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:54:39,062 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:54:39,096 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:54:39,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2025-03-04 09:54:39,150 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2025-03-04 09:54:39,153 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:54:39,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-03-04 09:54:39,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2025-03-04 09:54:39,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2025-03-04 09:54:39,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:54:39,174 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;@5a7ae192, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:54:39,174 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:54:39,185 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:54:39,186 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2025-03-04 09:54:39,186 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:54:39,186 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:39,186 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:54:39,187 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 09:54:39,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:39,191 INFO L85 PathProgramCache]: Analyzing trace with hash -33813954, now seen corresponding path program 1 times [2025-03-04 09:54:39,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:39,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468385844] [2025-03-04 09:54:39,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:39,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:39,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:54:39,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:54:39,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:39,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:39,409 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 09:54:39,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:39,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468385844] [2025-03-04 09:54:39,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468385844] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:39,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:39,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:54:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752317488] [2025-03-04 09:54:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:39,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:54:39,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:39,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:54:39,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:54:39,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:54:39,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 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 09:54:39,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:39,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:54:39,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:40,061 INFO L124 PetriNetUnfolderBase]: 5627/8717 cut-off events. [2025-03-04 09:54:40,061 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-03-04 09:54:40,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16816 conditions, 8717 events. 5627/8717 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 52002 event pairs, 5627 based on Foata normal form. 756/9420 useless extension candidates. Maximal degree in co-relation 16805. Up to 7994 conditions per place. [2025-03-04 09:54:40,100 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 28 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2025-03-04 09:54:40,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 141 flow [2025-03-04 09:54:40,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:54:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:54:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-03-04 09:54:40,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-03-04 09:54:40,109 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 60 transitions. [2025-03-04 09:54:40,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 141 flow [2025-03-04 09:54:40,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 138 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:54:40,113 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2025-03-04 09:54:40,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2025-03-04 09:54:40,116 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2025-03-04 09:54:40,117 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2025-03-04 09:54:40,117 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 09:54:40,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:40,117 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:54:40,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:54:40,117 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 09:54:40,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:40,118 INFO L85 PathProgramCache]: Analyzing trace with hash -33813512, now seen corresponding path program 1 times [2025-03-04 09:54:40,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:40,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581931210] [2025-03-04 09:54:40,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:40,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:40,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:54:40,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:54:40,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:40,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:40,425 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 09:54:40,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:40,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581931210] [2025-03-04 09:54:40,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581931210] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:40,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:40,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:54:40,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766461451] [2025-03-04 09:54:40,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:40,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:54:40,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:40,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:54:40,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:54:40,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:54:40,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 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 09:54:40,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:40,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:54:40,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:41,603 INFO L124 PetriNetUnfolderBase]: 12675/18592 cut-off events. [2025-03-04 09:54:41,604 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:54:41,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36894 conditions, 18592 events. 12675/18592 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 115005 event pairs, 2879 based on Foata normal form. 0/18162 useless extension candidates. Maximal degree in co-relation 36888. Up to 6462 conditions per place. [2025-03-04 09:54:41,680 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 48 selfloop transitions, 6 changer transitions 99/158 dead transitions. [2025-03-04 09:54:41,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 158 transitions, 634 flow [2025-03-04 09:54:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:54:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:54:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 236 transitions. [2025-03-04 09:54:41,682 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5959595959595959 [2025-03-04 09:54:41,682 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 236 transitions. [2025-03-04 09:54:41,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 158 transitions, 634 flow [2025-03-04 09:54:41,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 158 transitions, 633 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:54:41,686 INFO L231 Difference]: Finished difference. Result has 59 places, 38 transitions, 149 flow [2025-03-04 09:54:41,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=149, PETRI_PLACES=59, PETRI_TRANSITIONS=38} [2025-03-04 09:54:41,687 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-03-04 09:54:41,687 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 38 transitions, 149 flow [2025-03-04 09:54:41,687 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 09:54:41,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:41,687 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 09:54:41,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:54:41,688 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 09:54:41,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:41,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1258495529, now seen corresponding path program 1 times [2025-03-04 09:54:41,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:41,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099691229] [2025-03-04 09:54:41,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:41,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:41,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:54:41,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:54:41,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:41,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:41,861 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 09:54:41,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:41,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099691229] [2025-03-04 09:54:41,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099691229] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:41,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:41,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:54:41,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864917654] [2025-03-04 09:54:41,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:41,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:54:41,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:41,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:54:41,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:54:41,865 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:54:41,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 38 transitions, 149 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 09:54:41,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:41,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:54:41,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:42,729 INFO L124 PetriNetUnfolderBase]: 9331/13891 cut-off events. [2025-03-04 09:54:42,729 INFO L125 PetriNetUnfolderBase]: For 13974/13980 co-relation queries the response was YES. [2025-03-04 09:54:42,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37442 conditions, 13891 events. 9331/13891 cut-off events. For 13974/13980 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 82640 event pairs, 1294 based on Foata normal form. 360/14240 useless extension candidates. Maximal degree in co-relation 37427. Up to 5495 conditions per place. [2025-03-04 09:54:42,777 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 55 selfloop transitions, 7 changer transitions 87/154 dead transitions. [2025-03-04 09:54:42,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 154 transitions, 841 flow [2025-03-04 09:54:42,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:54:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:54:42,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 235 transitions. [2025-03-04 09:54:42,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2025-03-04 09:54:42,781 INFO L175 Difference]: Start difference. First operand has 59 places, 38 transitions, 149 flow. Second operand 10 states and 235 transitions. [2025-03-04 09:54:42,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 154 transitions, 841 flow [2025-03-04 09:54:42,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 154 transitions, 771 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-03-04 09:54:42,837 INFO L231 Difference]: Finished difference. Result has 66 places, 40 transitions, 187 flow [2025-03-04 09:54:42,837 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=187, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2025-03-04 09:54:42,838 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-03-04 09:54:42,839 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 40 transitions, 187 flow [2025-03-04 09:54:42,839 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 09:54:42,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:42,839 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 09:54:42,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:54:42,839 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 09:54:42,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:42,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2097718870, now seen corresponding path program 1 times [2025-03-04 09:54:42,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:42,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780523071] [2025-03-04 09:54:42,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:42,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:42,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 09:54:42,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 09:54:42,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:42,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:42,967 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 09:54:42,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:42,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780523071] [2025-03-04 09:54:42,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780523071] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:42,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:42,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:54:42,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790900279] [2025-03-04 09:54:42,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:42,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:54:42,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:42,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:54:42,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:54:42,971 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:54:42,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 40 transitions, 187 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 09:54:42,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:42,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:54:42,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:43,719 INFO L124 PetriNetUnfolderBase]: 8273/12509 cut-off events. [2025-03-04 09:54:43,719 INFO L125 PetriNetUnfolderBase]: For 24574/24580 co-relation queries the response was YES. [2025-03-04 09:54:43,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35567 conditions, 12509 events. 8273/12509 cut-off events. For 24574/24580 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 74443 event pairs, 3233 based on Foata normal form. 300/12798 useless extension candidates. Maximal degree in co-relation 35545. Up to 7769 conditions per place. [2025-03-04 09:54:43,798 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 44 selfloop transitions, 3 changer transitions 62/114 dead transitions. [2025-03-04 09:54:43,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 114 transitions, 703 flow [2025-03-04 09:54:43,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 09:54:43,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 09:54:43,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2025-03-04 09:54:43,800 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5194805194805194 [2025-03-04 09:54:43,800 INFO L175 Difference]: Start difference. First operand has 66 places, 40 transitions, 187 flow. Second operand 7 states and 160 transitions. [2025-03-04 09:54:43,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 114 transitions, 703 flow [2025-03-04 09:54:44,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 114 transitions, 676 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-03-04 09:54:44,052 INFO L231 Difference]: Finished difference. Result has 66 places, 40 transitions, 191 flow [2025-03-04 09:54:44,052 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=191, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2025-03-04 09:54:44,053 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2025-03-04 09:54:44,053 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 40 transitions, 191 flow [2025-03-04 09:54:44,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 09:54:44,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:44,054 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 09:54:44,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:54:44,054 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 09:54:44,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:44,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1166713677, now seen corresponding path program 1 times [2025-03-04 09:54:44,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:44,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903618386] [2025-03-04 09:54:44,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:44,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:44,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:54:44,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:54:44,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:44,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:44,193 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 09:54:44,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:44,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903618386] [2025-03-04 09:54:44,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903618386] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:44,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:44,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:54:44,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130419796] [2025-03-04 09:54:44,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:44,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:54:44,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:44,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:54:44,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:54:44,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:54:44,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 40 transitions, 191 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 09:54:44,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:44,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:54:44,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:44,959 INFO L124 PetriNetUnfolderBase]: 11682/17293 cut-off events. [2025-03-04 09:54:44,959 INFO L125 PetriNetUnfolderBase]: For 20735/20735 co-relation queries the response was YES. [2025-03-04 09:54:44,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47506 conditions, 17293 events. 11682/17293 cut-off events. For 20735/20735 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 105448 event pairs, 3247 based on Foata normal form. 240/17529 useless extension candidates. Maximal degree in co-relation 47482. Up to 8032 conditions per place. [2025-03-04 09:54:45,021 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 50 selfloop transitions, 5 changer transitions 49/109 dead transitions. [2025-03-04 09:54:45,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 109 transitions, 673 flow [2025-03-04 09:54:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:54:45,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:54:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2025-03-04 09:54:45,024 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5568181818181818 [2025-03-04 09:54:45,024 INFO L175 Difference]: Start difference. First operand has 66 places, 40 transitions, 191 flow. Second operand 6 states and 147 transitions. [2025-03-04 09:54:45,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 109 transitions, 673 flow [2025-03-04 09:54:45,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 109 transitions, 631 flow, removed 13 selfloop flow, removed 9 redundant places. [2025-03-04 09:54:45,125 INFO L231 Difference]: Finished difference. Result has 62 places, 42 transitions, 207 flow [2025-03-04 09:54:45,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=207, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2025-03-04 09:54:45,125 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 14 predicate places. [2025-03-04 09:54:45,125 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 42 transitions, 207 flow [2025-03-04 09:54:45,126 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 09:54:45,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:45,126 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 09:54:45,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:54:45,126 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 09:54:45,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:45,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2022443788, now seen corresponding path program 1 times [2025-03-04 09:54:45,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:45,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375070636] [2025-03-04 09:54:45,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:45,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:45,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:54:45,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:54:45,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:45,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:45,252 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 09:54:45,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:45,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375070636] [2025-03-04 09:54:45,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375070636] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:45,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:45,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 09:54:45,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207363422] [2025-03-04 09:54:45,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:45,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:54:45,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:45,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:54:45,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:54:45,256 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:54:45,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 42 transitions, 207 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:54:45,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:45,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:54:45,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:46,484 INFO L124 PetriNetUnfolderBase]: 13285/19700 cut-off events. [2025-03-04 09:54:46,484 INFO L125 PetriNetUnfolderBase]: For 14764/14764 co-relation queries the response was YES. [2025-03-04 09:54:46,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49734 conditions, 19700 events. 13285/19700 cut-off events. For 14764/14764 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 120967 event pairs, 2303 based on Foata normal form. 224/19916 useless extension candidates. Maximal degree in co-relation 49713. Up to 4780 conditions per place. [2025-03-04 09:54:46,558 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 70 selfloop transitions, 7 changer transitions 90/172 dead transitions. [2025-03-04 09:54:46,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 172 transitions, 904 flow [2025-03-04 09:54:46,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 09:54:46,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-04 09:54:46,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 263 transitions. [2025-03-04 09:54:46,560 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5433884297520661 [2025-03-04 09:54:46,560 INFO L175 Difference]: Start difference. First operand has 62 places, 42 transitions, 207 flow. Second operand 11 states and 263 transitions. [2025-03-04 09:54:46,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 172 transitions, 904 flow [2025-03-04 09:54:46,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 172 transitions, 849 flow, removed 24 selfloop flow, removed 6 redundant places. [2025-03-04 09:54:46,626 INFO L231 Difference]: Finished difference. Result has 70 places, 39 transitions, 179 flow [2025-03-04 09:54:46,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=179, PETRI_PLACES=70, PETRI_TRANSITIONS=39} [2025-03-04 09:54:46,627 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2025-03-04 09:54:46,627 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 39 transitions, 179 flow [2025-03-04 09:54:46,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:54:46,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:46,627 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:54:46,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:54:46,627 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 09:54:46,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1697334573, now seen corresponding path program 1 times [2025-03-04 09:54:46,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:46,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226271784] [2025-03-04 09:54:46,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:46,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:46,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 09:54:46,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 09:54:46,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:46,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:46,717 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 09:54:46,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:46,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226271784] [2025-03-04 09:54:46,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226271784] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:46,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:46,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:54:46,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765185777] [2025-03-04 09:54:46,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:46,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:54:46,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:46,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:54:46,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:54:46,719 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:54:46,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 39 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 09:54:46,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:46,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:54:46,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:47,028 INFO L124 PetriNetUnfolderBase]: 5945/9295 cut-off events. [2025-03-04 09:54:47,028 INFO L125 PetriNetUnfolderBase]: For 7840/7840 co-relation queries the response was YES. [2025-03-04 09:54:47,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22812 conditions, 9295 events. 5945/9295 cut-off events. For 7840/7840 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 56275 event pairs, 865 based on Foata normal form. 478/9770 useless extension candidates. Maximal degree in co-relation 22789. Up to 4879 conditions per place. [2025-03-04 09:54:47,058 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 63 selfloop transitions, 5 changer transitions 7/80 dead transitions. [2025-03-04 09:54:47,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 525 flow [2025-03-04 09:54:47,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:54:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:54:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-03-04 09:54:47,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2025-03-04 09:54:47,059 INFO L175 Difference]: Start difference. First operand has 70 places, 39 transitions, 179 flow. Second operand 4 states and 106 transitions. [2025-03-04 09:54:47,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 525 flow [2025-03-04 09:54:47,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 80 transitions, 466 flow, removed 12 selfloop flow, removed 10 redundant places. [2025-03-04 09:54:47,086 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 182 flow [2025-03-04 09:54:47,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2025-03-04 09:54:47,086 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2025-03-04 09:54:47,087 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 182 flow [2025-03-04 09:54:47,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 09:54:47,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:47,087 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:54:47,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:54:47,087 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 09:54:47,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:47,088 INFO L85 PathProgramCache]: Analyzing trace with hash 453206108, now seen corresponding path program 1 times [2025-03-04 09:54:47,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:47,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92052423] [2025-03-04 09:54:47,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:47,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:47,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 09:54:47,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 09:54:47,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:47,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:47,160 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 09:54:47,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92052423] [2025-03-04 09:54:47,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92052423] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:47,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:47,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:54:47,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540678831] [2025-03-04 09:54:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:47,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:54:47,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:47,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:54:47,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:54:47,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:54:47,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 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 09:54:47,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:47,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:54:47,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:47,526 INFO L124 PetriNetUnfolderBase]: 3899/6215 cut-off events. [2025-03-04 09:54:47,527 INFO L125 PetriNetUnfolderBase]: For 4119/4119 co-relation queries the response was YES. [2025-03-04 09:54:47,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16508 conditions, 6215 events. 3899/6215 cut-off events. For 4119/4119 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 35031 event pairs, 475 based on Foata normal form. 376/6588 useless extension candidates. Maximal degree in co-relation 16491. Up to 2113 conditions per place. [2025-03-04 09:54:47,548 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 72 selfloop transitions, 8 changer transitions 13/98 dead transitions. [2025-03-04 09:54:47,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 98 transitions, 616 flow [2025-03-04 09:54:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:54:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:54:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2025-03-04 09:54:47,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2025-03-04 09:54:47,549 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 182 flow. Second operand 5 states and 131 transitions. [2025-03-04 09:54:47,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 98 transitions, 616 flow [2025-03-04 09:54:47,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 98 transitions, 606 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 09:54:47,556 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 222 flow [2025-03-04 09:54:47,556 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-03-04 09:54:47,557 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2025-03-04 09:54:47,558 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 222 flow [2025-03-04 09:54:47,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 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 09:54:47,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:47,558 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 09:54:47,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:54:47,558 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 09:54:47,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:47,559 INFO L85 PathProgramCache]: Analyzing trace with hash -213143971, now seen corresponding path program 1 times [2025-03-04 09:54:47,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:47,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74738203] [2025-03-04 09:54:47,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:47,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:47,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:54:47,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:54:47,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:47,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:47,647 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 09:54:47,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:47,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74738203] [2025-03-04 09:54:47,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74738203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:47,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:47,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:54:47,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261567723] [2025-03-04 09:54:47,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:47,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:54:47,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:47,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:54:47,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:54:47,649 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2025-03-04 09:54:47,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 222 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 09:54:47,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:47,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2025-03-04 09:54:47,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:47,858 INFO L124 PetriNetUnfolderBase]: 2381/3793 cut-off events. [2025-03-04 09:54:47,858 INFO L125 PetriNetUnfolderBase]: For 4551/4551 co-relation queries the response was YES. [2025-03-04 09:54:47,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11010 conditions, 3793 events. 2381/3793 cut-off events. For 4551/4551 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 19332 event pairs, 395 based on Foata normal form. 172/3962 useless extension candidates. Maximal degree in co-relation 10991. Up to 1268 conditions per place. [2025-03-04 09:54:47,870 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 62 selfloop transitions, 11 changer transitions 10/88 dead transitions. [2025-03-04 09:54:47,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 88 transitions, 562 flow [2025-03-04 09:54:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:54:47,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:54:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2025-03-04 09:54:47,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5075757575757576 [2025-03-04 09:54:47,871 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 222 flow. Second operand 6 states and 134 transitions. [2025-03-04 09:54:47,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 88 transitions, 562 flow [2025-03-04 09:54:47,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 88 transitions, 512 flow, removed 13 selfloop flow, removed 7 redundant places. [2025-03-04 09:54:47,886 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 223 flow [2025-03-04 09:54:47,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=223, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-03-04 09:54:47,887 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2025-03-04 09:54:47,887 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 223 flow [2025-03-04 09:54:47,887 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 09:54:47,887 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:47,887 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:54:47,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:54:47,887 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 09:54:47,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2137668909, now seen corresponding path program 1 times [2025-03-04 09:54:47,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:47,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721384264] [2025-03-04 09:54:47,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:54:47,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:47,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 09:54:47,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 09:54:47,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:54:47,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:47,984 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 09:54:47,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:47,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721384264] [2025-03-04 09:54:47,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721384264] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:47,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:47,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:54:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767328206] [2025-03-04 09:54:47,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:47,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:54:47,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:47,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:54:47,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:54:47,987 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:54:47,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 223 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:54:47,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:47,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:54:47,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:48,162 INFO L124 PetriNetUnfolderBase]: 2077/3293 cut-off events. [2025-03-04 09:54:48,162 INFO L125 PetriNetUnfolderBase]: For 4065/4065 co-relation queries the response was YES. [2025-03-04 09:54:48,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9544 conditions, 3293 events. 2077/3293 cut-off events. For 4065/4065 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 16262 event pairs, 977 based on Foata normal form. 8/3298 useless extension candidates. Maximal degree in co-relation 9527. Up to 1626 conditions per place. [2025-03-04 09:54:48,170 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 46 selfloop transitions, 2 changer transitions 22/75 dead transitions. [2025-03-04 09:54:48,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 75 transitions, 499 flow [2025-03-04 09:54:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:54:48,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:54:48,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2025-03-04 09:54:48,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4636363636363636 [2025-03-04 09:54:48,171 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 223 flow. Second operand 5 states and 102 transitions. [2025-03-04 09:54:48,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 75 transitions, 499 flow [2025-03-04 09:54:48,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 75 transitions, 390 flow, removed 20 selfloop flow, removed 8 redundant places. [2025-03-04 09:54:48,182 INFO L231 Difference]: Finished difference. Result has 62 places, 42 transitions, 158 flow [2025-03-04 09:54:48,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2025-03-04 09:54:48,183 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 14 predicate places. [2025-03-04 09:54:48,183 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 42 transitions, 158 flow [2025-03-04 09:54:48,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:54:48,183 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:54:48,183 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:54:48,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 09:54:48,183 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:54:48,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:54:48,184 INFO L85 PathProgramCache]: Analyzing trace with hash -845589409, now seen corresponding path program 2 times [2025-03-04 09:54:48,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:54:48,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386192924] [2025-03-04 09:54:48,184 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 09:54:48,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:54:48,189 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 1 equivalence classes. [2025-03-04 09:54:48,192 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 09:54:48,192 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 09:54:48,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:54:48,263 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 09:54:48,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:54:48,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386192924] [2025-03-04 09:54:48,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386192924] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:54:48,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:54:48,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:54:48,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936981879] [2025-03-04 09:54:48,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:54:48,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:54:48,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:54:48,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:54:48,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:54:48,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2025-03-04 09:54:48,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 42 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 09:54:48,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:54:48,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2025-03-04 09:54:48,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:54:48,397 INFO L124 PetriNetUnfolderBase]: 1005/1571 cut-off events. [2025-03-04 09:54:48,397 INFO L125 PetriNetUnfolderBase]: For 902/902 co-relation queries the response was YES. [2025-03-04 09:54:48,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4002 conditions, 1571 events. 1005/1571 cut-off events. For 902/902 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6402 event pairs, 314 based on Foata normal form. 8/1578 useless extension candidates. Maximal degree in co-relation 3994. Up to 992 conditions per place. [2025-03-04 09:54:48,400 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2025-03-04 09:54:48,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 314 flow [2025-03-04 09:54:48,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:54:48,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:54:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2025-03-04 09:54:48,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3787878787878788 [2025-03-04 09:54:48,401 INFO L175 Difference]: Start difference. First operand has 62 places, 42 transitions, 158 flow. Second operand 6 states and 100 transitions. [2025-03-04 09:54:48,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 314 flow [2025-03-04 09:54:48,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 295 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-03-04 09:54:48,402 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-03-04 09:54:48,402 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-03-04 09:54:48,403 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2025-03-04 09:54:48,403 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-03-04 09:54:48,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 09:54:48,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:54:48,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:54:48,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:54:48,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:54:48,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:54:48,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 09:54:48,406 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:54:48,408 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:54:48,409 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:54:48,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:54:48 BasicIcfg [2025-03-04 09:54:48,412 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:54:48,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:54:48,413 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:54:48,413 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:54:48,414 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:54:39" (3/4) ... [2025-03-04 09:54:48,415 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:54:48,417 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:54:48,417 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:54:48,417 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:54:48,420 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-04 09:54:48,420 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 09:54:48,420 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 09:54:48,420 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 09:54:48,468 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:54:48,468 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:54:48,468 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:54:48,469 INFO L158 Benchmark]: Toolchain (without parser) took 10211.43ms. Allocated memory was 167.8MB in the beginning and 1.1GB in the end (delta: 922.7MB). Free memory was 121.7MB in the beginning and 290.5MB in the end (delta: -168.8MB). Peak memory consumption was 754.7MB. Max. memory is 16.1GB. [2025-03-04 09:54:48,469 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:54:48,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.48ms. Allocated memory is still 167.8MB. Free memory was 121.0MB in the beginning and 101.7MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:54:48,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.38ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 99.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:54:48,470 INFO L158 Benchmark]: Boogie Preprocessor took 28.05ms. Allocated memory is still 167.8MB. Free memory was 99.5MB in the beginning and 98.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:54:48,470 INFO L158 Benchmark]: IcfgBuilder took 348.64ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 78.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:54:48,470 INFO L158 Benchmark]: TraceAbstraction took 9370.17ms. Allocated memory was 167.8MB in the beginning and 1.1GB in the end (delta: 922.7MB). Free memory was 77.8MB in the beginning and 294.9MB in the end (delta: -217.1MB). Peak memory consumption was 704.4MB. Max. memory is 16.1GB. [2025-03-04 09:54:48,470 INFO L158 Benchmark]: Witness Printer took 55.79ms. Allocated memory is still 1.1GB. Free memory was 294.9MB in the beginning and 290.5MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:54:48,471 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.48ms. Allocated memory is still 167.8MB. Free memory was 121.0MB in the beginning and 101.7MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.38ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 99.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.05ms. Allocated memory is still 167.8MB. Free memory was 99.5MB in the beginning and 98.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 348.64ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 78.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9370.17ms. Allocated memory was 167.8MB in the beginning and 1.1GB in the end (delta: 922.7MB). Free memory was 77.8MB in the beginning and 294.9MB in the end (delta: -217.1MB). Peak memory consumption was 704.4MB. Max. memory is 16.1GB. * Witness Printer took 55.79ms. Allocated memory is still 1.1GB. Free memory was 294.9MB in the beginning and 290.5MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: 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, 68 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: 9.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 752 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 750 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1868 IncrementalHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 1 mSDtfsCounter, 1868 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=9, InterpolantAutomatonStates: 72, 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, 1.3s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 234 ConstructedInterpolants, 0 QuantifiedInterpolants, 812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 09:54:48,484 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