./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe002_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:46:57,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:46:57,853 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:46:57,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:46:57,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:46:57,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:46:57,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:46:57,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:46:57,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:46:57,890 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:46:57,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:46:57,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:46:57,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:46:57,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:46:57,892 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:46:57,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:46:57,892 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:46:57,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:46:57,892 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:46:57,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:46:57,892 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:46:57,892 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:46:57,893 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:46:57,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:46:57,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:46:57,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:46:57,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:46:57,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:46:57,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:46:57,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:46:57,895 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:46:57,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:46:57,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:46:57,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:46:57,895 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2025-02-06 12:46:58,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:46:58,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:46:58,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:46:58,174 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:46:58,175 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:46:58,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.i [2025-02-06 12:46:59,446 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd64d9f51/c9169ef3eff944cb99cceba59426d379/FLAG7d7167921 [2025-02-06 12:46:59,773 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:46:59,774 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2025-02-06 12:46:59,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd64d9f51/c9169ef3eff944cb99cceba59426d379/FLAG7d7167921 [2025-02-06 12:46:59,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cd64d9f51/c9169ef3eff944cb99cceba59426d379 [2025-02-06 12:46:59,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:46:59,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:46:59,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:46:59,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:46:59,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:46:59,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:46:59" (1/1) ... [2025-02-06 12:46:59,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ab4fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:46:59, skipping insertion in model container [2025-02-06 12:46:59,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:46:59" (1/1) ... [2025-02-06 12:46:59,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:47:00,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:47:00,098 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:47:00,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:47:00,177 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:47:00,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00 WrapperNode [2025-02-06 12:47:00,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:47:00,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:47:00,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:47:00,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:47:00,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,204 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-02-06 12:47:00,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:47:00,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:47:00,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:47:00,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:47:00,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,223 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 12:47:00,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,232 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:47:00,239 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:47:00,239 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:47:00,239 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:47:00,240 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (1/1) ... [2025-02-06 12:47:00,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:47:00,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:47:00,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:47:00,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:47:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:47:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:47:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:47:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:47:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:47:00,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:47:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:47:00,314 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:47:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:47:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:47:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:47:00,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:47:00,315 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:47:00,429 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:47:00,430 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:47:00,530 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:47:00,531 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:47:00,581 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:47:00,582 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:47:00,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:00 BoogieIcfgContainer [2025-02-06 12:47:00,582 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:47:00,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:47:00,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:47:00,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:47:00,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:46:59" (1/3) ... [2025-02-06 12:47:00,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1006a233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:47:00, skipping insertion in model container [2025-02-06 12:47:00,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:47:00" (2/3) ... [2025-02-06 12:47:00,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1006a233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:47:00, skipping insertion in model container [2025-02-06 12:47:00,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:00" (3/3) ... [2025-02-06 12:47:00,589 INFO L128 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2025-02-06 12:47:00,602 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:47:00,603 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe002_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 12:47:00,603 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:47:00,636 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:47:00,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-02-06 12:47:00,689 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-02-06 12:47:00,693 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:00,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-02-06 12:47:00,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-02-06 12:47:00,701 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-02-06 12:47:00,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:47:00,722 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;@76b5a1ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:47:00,723 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-06 12:47:00,735 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:47:00,736 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-06 12:47:00,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:00,736 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:00,736 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:00,737 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)] === [2025-02-06 12:47:00,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:00,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1029472030, now seen corresponding path program 1 times [2025-02-06 12:47:00,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:00,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491965010] [2025-02-06 12:47:00,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:00,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:00,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:47:00,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:47:00,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:00,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:00,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:00,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:00,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491965010] [2025-02-06 12:47:00,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491965010] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:00,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:00,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:47:00,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55022660] [2025-02-06 12:47:00,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:00,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:47:01,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:01,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:47:01,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:47:01,020 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:01,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:01,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:01,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:01,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:01,610 INFO L124 PetriNetUnfolderBase]: 4775/7427 cut-off events. [2025-02-06 12:47:01,610 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-02-06 12:47:01,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14322 conditions, 7427 events. 4775/7427 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 43781 event pairs, 4775 based on Foata normal form. 648/8026 useless extension candidates. Maximal degree in co-relation 14311. Up to 6804 conditions per place. [2025-02-06 12:47:01,657 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-02-06 12:47:01,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-02-06 12:47:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:47:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:47:01,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-02-06 12:47:01,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-02-06 12:47:01,668 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-02-06 12:47:01,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-02-06 12:47:01,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 12:47:01,677 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-02-06 12:47:01,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-02-06 12:47:01,683 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-02-06 12:47:01,685 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-02-06 12:47:01,685 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) [2025-02-06 12:47:01,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:01,685 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:01,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:47:01,686 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)] === [2025-02-06 12:47:01,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:01,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1029471599, now seen corresponding path program 1 times [2025-02-06 12:47:01,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:01,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491339175] [2025-02-06 12:47:01,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:01,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:01,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:47:01,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:47:01,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:01,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:01,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:01,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491339175] [2025-02-06 12:47:01,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491339175] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:01,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:01,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:47:01,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438375811] [2025-02-06 12:47:01,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:01,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:47:01,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:01,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:47:01,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:47:01,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:01,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:01,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:01,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:01,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:02,950 INFO L124 PetriNetUnfolderBase]: 10073/14911 cut-off events. [2025-02-06 12:47:02,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:47:02,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29535 conditions, 14911 events. 10073/14911 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 91300 event pairs, 2229 based on Foata normal form. 0/14553 useless extension candidates. Maximal degree in co-relation 29529. Up to 5819 conditions per place. [2025-02-06 12:47:03,072 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 47 selfloop transitions, 6 changer transitions 97/155 dead transitions. [2025-02-06 12:47:03,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 155 transitions, 622 flow [2025-02-06 12:47:03,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:47:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:47:03,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2025-02-06 12:47:03,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2025-02-06 12:47:03,075 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 233 transitions. [2025-02-06 12:47:03,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 155 transitions, 622 flow [2025-02-06 12:47:03,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 155 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:47:03,080 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2025-02-06 12:47:03,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2025-02-06 12:47:03,081 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2025-02-06 12:47:03,082 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2025-02-06 12:47:03,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:03,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:03,082 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:03,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:47:03,082 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)] === [2025-02-06 12:47:03,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:03,083 INFO L85 PathProgramCache]: Analyzing trace with hash -320120528, now seen corresponding path program 1 times [2025-02-06 12:47:03,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:03,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691402548] [2025-02-06 12:47:03,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:03,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:03,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:47:03,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:47:03,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:03,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:03,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:03,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:03,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691402548] [2025-02-06 12:47:03,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691402548] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:03,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:03,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:03,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099353713] [2025-02-06 12:47:03,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:03,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:03,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:03,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:03,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:03,226 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:03,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:03,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:03,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:03,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:04,078 INFO L124 PetriNetUnfolderBase]: 7550/11368 cut-off events. [2025-02-06 12:47:04,079 INFO L125 PetriNetUnfolderBase]: For 13933/13933 co-relation queries the response was YES. [2025-02-06 12:47:04,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31224 conditions, 11368 events. 7550/11368 cut-off events. For 13933/13933 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 68156 event pairs, 725 based on Foata normal form. 302/11657 useless extension candidates. Maximal degree in co-relation 31209. Up to 5293 conditions per place. [2025-02-06 12:47:04,129 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 58 selfloop transitions, 10 changer transitions 78/151 dead transitions. [2025-02-06 12:47:04,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 151 transitions, 905 flow [2025-02-06 12:47:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:47:04,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:47:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 229 transitions. [2025-02-06 12:47:04,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5325581395348837 [2025-02-06 12:47:04,131 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 229 transitions. [2025-02-06 12:47:04,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 151 transitions, 905 flow [2025-02-06 12:47:04,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 151 transitions, 811 flow, removed 20 selfloop flow, removed 4 redundant places. [2025-02-06 12:47:04,155 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 237 flow [2025-02-06 12:47:04,155 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=237, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2025-02-06 12:47:04,155 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2025-02-06 12:47:04,155 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 237 flow [2025-02-06 12:47:04,156 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) [2025-02-06 12:47:04,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:04,156 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:04,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:47:04,156 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)] === [2025-02-06 12:47:04,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:04,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1662331380, now seen corresponding path program 1 times [2025-02-06 12:47:04,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:04,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027067400] [2025-02-06 12:47:04,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:04,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:04,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:47:04,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:47:04,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:04,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:04,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:04,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:04,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027067400] [2025-02-06 12:47:04,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027067400] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:04,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:04,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:04,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135178869] [2025-02-06 12:47:04,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:04,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:04,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:04,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:04,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:04,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:04,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:04,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:04,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:04,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:05,258 INFO L124 PetriNetUnfolderBase]: 6998/10517 cut-off events. [2025-02-06 12:47:05,258 INFO L125 PetriNetUnfolderBase]: For 23786/23786 co-relation queries the response was YES. [2025-02-06 12:47:05,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31823 conditions, 10517 events. 6998/10517 cut-off events. For 23786/23786 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 61708 event pairs, 1525 based on Foata normal form. 240/10754 useless extension candidates. Maximal degree in co-relation 31801. Up to 5013 conditions per place. [2025-02-06 12:47:05,322 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 65 selfloop transitions, 12 changer transitions 68/150 dead transitions. [2025-02-06 12:47:05,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 150 transitions, 905 flow [2025-02-06 12:47:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:47:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:47:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 227 transitions. [2025-02-06 12:47:05,324 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5279069767441861 [2025-02-06 12:47:05,325 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 237 flow. Second operand 10 states and 227 transitions. [2025-02-06 12:47:05,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 150 transitions, 905 flow [2025-02-06 12:47:05,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 150 transitions, 839 flow, removed 33 selfloop flow, removed 2 redundant places. [2025-02-06 12:47:05,454 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 311 flow [2025-02-06 12:47:05,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2025-02-06 12:47:05,456 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2025-02-06 12:47:05,456 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 311 flow [2025-02-06 12:47:05,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:05,456 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:05,457 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:05,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:47:05,457 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)] === [2025-02-06 12:47:05,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:05,457 INFO L85 PathProgramCache]: Analyzing trace with hash -732595467, now seen corresponding path program 1 times [2025-02-06 12:47:05,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:05,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705223996] [2025-02-06 12:47:05,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:05,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:05,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:47:05,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:47:05,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:05,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:05,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:05,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705223996] [2025-02-06 12:47:05,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705223996] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:05,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:05,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:05,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315150400] [2025-02-06 12:47:05,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:05,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:05,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:05,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:05,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:05,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:05,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 311 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) [2025-02-06 12:47:05,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:05,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:05,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:06,349 INFO L124 PetriNetUnfolderBase]: 9955/14989 cut-off events. [2025-02-06 12:47:06,350 INFO L125 PetriNetUnfolderBase]: For 33510/33510 co-relation queries the response was YES. [2025-02-06 12:47:06,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45223 conditions, 14989 events. 9955/14989 cut-off events. For 33510/33510 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 92253 event pairs, 2772 based on Foata normal form. 248/15224 useless extension candidates. Maximal degree in co-relation 45192. Up to 7055 conditions per place. [2025-02-06 12:47:06,452 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 52 selfloop transitions, 5 changer transitions 53/115 dead transitions. [2025-02-06 12:47:06,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 115 transitions, 859 flow [2025-02-06 12:47:06,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:47:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:47:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2025-02-06 12:47:06,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5736434108527132 [2025-02-06 12:47:06,453 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 311 flow. Second operand 6 states and 148 transitions. [2025-02-06 12:47:06,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 115 transitions, 859 flow [2025-02-06 12:47:06,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 115 transitions, 815 flow, removed 20 selfloop flow, removed 11 redundant places. [2025-02-06 12:47:06,581 INFO L231 Difference]: Finished difference. Result has 66 places, 41 transitions, 232 flow [2025-02-06 12:47:06,581 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=66, PETRI_TRANSITIONS=41} [2025-02-06 12:47:06,582 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2025-02-06 12:47:06,582 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 41 transitions, 232 flow [2025-02-06 12:47:06,582 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) [2025-02-06 12:47:06,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:06,582 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:06,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:47:06,582 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)] === [2025-02-06 12:47:06,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash -48627239, now seen corresponding path program 1 times [2025-02-06 12:47:06,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:06,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942364196] [2025-02-06 12:47:06,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:06,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:06,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:47:06,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:47:06,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:06,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:06,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:06,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:06,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942364196] [2025-02-06 12:47:06,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942364196] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:06,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:06,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:47:06,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125541506] [2025-02-06 12:47:06,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:06,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:06,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:06,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:06,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:06,680 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:06,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 41 transitions, 232 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) [2025-02-06 12:47:06,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:06,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:06,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:07,210 INFO L124 PetriNetUnfolderBase]: 7024/10515 cut-off events. [2025-02-06 12:47:07,211 INFO L125 PetriNetUnfolderBase]: For 16057/16057 co-relation queries the response was YES. [2025-02-06 12:47:07,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29885 conditions, 10515 events. 7024/10515 cut-off events. For 16057/16057 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 61129 event pairs, 1582 based on Foata normal form. 220/10732 useless extension candidates. Maximal degree in co-relation 29860. Up to 5259 conditions per place. [2025-02-06 12:47:07,259 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 52 selfloop transitions, 7 changer transitions 52/116 dead transitions. [2025-02-06 12:47:07,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 116 transitions, 738 flow [2025-02-06 12:47:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:47:07,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:47:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2025-02-06 12:47:07,263 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5116279069767442 [2025-02-06 12:47:07,263 INFO L175 Difference]: Start difference. First operand has 66 places, 41 transitions, 232 flow. Second operand 8 states and 176 transitions. [2025-02-06 12:47:07,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 116 transitions, 738 flow [2025-02-06 12:47:07,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 116 transitions, 649 flow, removed 16 selfloop flow, removed 11 redundant places. [2025-02-06 12:47:07,304 INFO L231 Difference]: Finished difference. Result has 65 places, 40 transitions, 199 flow [2025-02-06 12:47:07,304 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=199, PETRI_PLACES=65, PETRI_TRANSITIONS=40} [2025-02-06 12:47:07,304 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2025-02-06 12:47:07,305 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 40 transitions, 199 flow [2025-02-06 12:47:07,305 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) [2025-02-06 12:47:07,305 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:07,305 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:07,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:47:07,305 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)] === [2025-02-06 12:47:07,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:07,306 INFO L85 PathProgramCache]: Analyzing trace with hash 932230099, now seen corresponding path program 2 times [2025-02-06 12:47:07,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:07,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648912418] [2025-02-06 12:47:07,306 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:47:07,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:07,311 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:47:07,315 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:47:07,315 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:47:07,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:07,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:07,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648912418] [2025-02-06 12:47:07,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648912418] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:07,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:07,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:07,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667755988] [2025-02-06 12:47:07,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:07,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:07,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:07,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:07,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:07,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:07,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 40 transitions, 199 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) [2025-02-06 12:47:07,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:07,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:07,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:07,931 INFO L124 PetriNetUnfolderBase]: 6942/10329 cut-off events. [2025-02-06 12:47:07,931 INFO L125 PetriNetUnfolderBase]: For 11855/11855 co-relation queries the response was YES. [2025-02-06 12:47:07,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27601 conditions, 10329 events. 6942/10329 cut-off events. For 11855/11855 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 58806 event pairs, 2277 based on Foata normal form. 264/10590 useless extension candidates. Maximal degree in co-relation 27580. Up to 5350 conditions per place. [2025-02-06 12:47:07,957 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 47 selfloop transitions, 4 changer transitions 39/95 dead transitions. [2025-02-06 12:47:07,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 95 transitions, 594 flow [2025-02-06 12:47:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:47:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:47:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2025-02-06 12:47:07,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5232558139534884 [2025-02-06 12:47:07,959 INFO L175 Difference]: Start difference. First operand has 65 places, 40 transitions, 199 flow. Second operand 6 states and 135 transitions. [2025-02-06 12:47:07,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 95 transitions, 594 flow [2025-02-06 12:47:07,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 95 transitions, 565 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-06 12:47:07,981 INFO L231 Difference]: Finished difference. Result has 63 places, 38 transitions, 180 flow [2025-02-06 12:47:07,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=63, PETRI_TRANSITIONS=38} [2025-02-06 12:47:07,982 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2025-02-06 12:47:07,982 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 38 transitions, 180 flow [2025-02-06 12:47:07,982 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) [2025-02-06 12:47:07,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:07,982 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:07,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:47:07,983 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)] === [2025-02-06 12:47:07,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:07,983 INFO L85 PathProgramCache]: Analyzing trace with hash -948064852, now seen corresponding path program 1 times [2025-02-06 12:47:07,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:07,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7558809] [2025-02-06 12:47:07,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:07,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:07,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 12:47:07,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 12:47:07,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:07,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:08,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7558809] [2025-02-06 12:47:08,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7558809] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:08,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:08,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:47:08,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406998175] [2025-02-06 12:47:08,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:08,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:47:08,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:08,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:47:08,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:47:08,083 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:08,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 38 transitions, 180 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) [2025-02-06 12:47:08,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:08,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:08,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:08,422 INFO L124 PetriNetUnfolderBase]: 3680/5529 cut-off events. [2025-02-06 12:47:08,422 INFO L125 PetriNetUnfolderBase]: For 5165/5165 co-relation queries the response was YES. [2025-02-06 12:47:08,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15071 conditions, 5529 events. 3680/5529 cut-off events. For 5165/5165 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 27428 event pairs, 753 based on Foata normal form. 80/5608 useless extension candidates. Maximal degree in co-relation 15051. Up to 2317 conditions per place. [2025-02-06 12:47:08,442 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 38 selfloop transitions, 3 changer transitions 54/100 dead transitions. [2025-02-06 12:47:08,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 534 flow [2025-02-06 12:47:08,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:47:08,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:47:08,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2025-02-06 12:47:08,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48255813953488375 [2025-02-06 12:47:08,443 INFO L175 Difference]: Start difference. First operand has 63 places, 38 transitions, 180 flow. Second operand 8 states and 166 transitions. [2025-02-06 12:47:08,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 534 flow [2025-02-06 12:47:08,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 100 transitions, 504 flow, removed 6 selfloop flow, removed 8 redundant places. [2025-02-06 12:47:08,456 INFO L231 Difference]: Finished difference. Result has 63 places, 33 transitions, 123 flow [2025-02-06 12:47:08,457 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=123, PETRI_PLACES=63, PETRI_TRANSITIONS=33} [2025-02-06 12:47:08,457 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2025-02-06 12:47:08,457 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 33 transitions, 123 flow [2025-02-06 12:47:08,457 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) [2025-02-06 12:47:08,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:08,458 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:08,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 12:47:08,458 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)] === [2025-02-06 12:47:08,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:08,458 INFO L85 PathProgramCache]: Analyzing trace with hash 939951754, now seen corresponding path program 2 times [2025-02-06 12:47:08,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:08,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956527532] [2025-02-06 12:47:08,458 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:47:08,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:08,462 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-06 12:47:08,467 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 12:47:08,467 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:47:08,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:08,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:08,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956527532] [2025-02-06 12:47:08,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956527532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:08,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:08,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:47:08,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518824732] [2025-02-06 12:47:08,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:08,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:47:08,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:08,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:47:08,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:47:08,516 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-06 12:47:08,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 33 transitions, 123 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) [2025-02-06 12:47:08,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:08,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-06 12:47:08,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:08,654 INFO L124 PetriNetUnfolderBase]: 1531/2460 cut-off events. [2025-02-06 12:47:08,654 INFO L125 PetriNetUnfolderBase]: For 1537/1537 co-relation queries the response was YES. [2025-02-06 12:47:08,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6078 conditions, 2460 events. 1531/2460 cut-off events. For 1537/1537 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 11992 event pairs, 177 based on Foata normal form. 106/2565 useless extension candidates. Maximal degree in co-relation 6060. Up to 1447 conditions per place. [2025-02-06 12:47:08,663 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 49 selfloop transitions, 5 changer transitions 1/60 dead transitions. [2025-02-06 12:47:08,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 60 transitions, 333 flow [2025-02-06 12:47:08,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:47:08,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:47:08,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2025-02-06 12:47:08,664 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2025-02-06 12:47:08,664 INFO L175 Difference]: Start difference. First operand has 63 places, 33 transitions, 123 flow. Second operand 4 states and 97 transitions. [2025-02-06 12:47:08,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 60 transitions, 333 flow [2025-02-06 12:47:08,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 287 flow, removed 10 selfloop flow, removed 11 redundant places. [2025-02-06 12:47:08,668 INFO L231 Difference]: Finished difference. Result has 52 places, 36 transitions, 131 flow [2025-02-06 12:47:08,668 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2025-02-06 12:47:08,669 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2025-02-06 12:47:08,669 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 36 transitions, 131 flow [2025-02-06 12:47:08,669 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) [2025-02-06 12:47:08,669 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:08,669 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:08,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:47:08,670 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)] === [2025-02-06 12:47:08,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:08,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1572653299, now seen corresponding path program 1 times [2025-02-06 12:47:08,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:08,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149288560] [2025-02-06 12:47:08,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:08,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:08,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 12:47:08,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 12:47:08,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:08,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:08,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:08,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:08,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149288560] [2025-02-06 12:47:08,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149288560] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:08,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:08,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:47:08,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242466587] [2025-02-06 12:47:08,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:08,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:47:08,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:08,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:47:08,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:47:08,775 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-06 12:47:08,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 36 transitions, 131 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) [2025-02-06 12:47:08,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:08,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-06 12:47:08,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:08,915 INFO L124 PetriNetUnfolderBase]: 959/1574 cut-off events. [2025-02-06 12:47:08,916 INFO L125 PetriNetUnfolderBase]: For 962/962 co-relation queries the response was YES. [2025-02-06 12:47:08,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 1574 events. 959/1574 cut-off events. For 962/962 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6852 event pairs, 91 based on Foata normal form. 84/1657 useless extension candidates. Maximal degree in co-relation 4108. Up to 661 conditions per place. [2025-02-06 12:47:08,921 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 56 selfloop transitions, 8 changer transitions 1/70 dead transitions. [2025-02-06 12:47:08,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 70 transitions, 378 flow [2025-02-06 12:47:08,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:47:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:47:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2025-02-06 12:47:08,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5441860465116279 [2025-02-06 12:47:08,925 INFO L175 Difference]: Start difference. First operand has 52 places, 36 transitions, 131 flow. Second operand 5 states and 117 transitions. [2025-02-06 12:47:08,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 70 transitions, 378 flow [2025-02-06 12:47:08,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 70 transitions, 368 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 12:47:08,927 INFO L231 Difference]: Finished difference. Result has 56 places, 39 transitions, 171 flow [2025-02-06 12:47:08,927 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=171, PETRI_PLACES=56, PETRI_TRANSITIONS=39} [2025-02-06 12:47:08,928 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2025-02-06 12:47:08,928 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 39 transitions, 171 flow [2025-02-06 12:47:08,928 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) [2025-02-06 12:47:08,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:08,928 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] [2025-02-06 12:47:08,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 12:47:08,928 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)] === [2025-02-06 12:47:08,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:08,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1777195294, now seen corresponding path program 1 times [2025-02-06 12:47:08,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:08,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406769162] [2025-02-06 12:47:08,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:08,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:08,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 12:47:08,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 12:47:08,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:08,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:09,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:09,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406769162] [2025-02-06 12:47:09,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406769162] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:09,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:09,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:47:09,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435344530] [2025-02-06 12:47:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:09,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:09,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:09,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:09,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:09,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-06 12:47:09,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 39 transitions, 171 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) [2025-02-06 12:47:09,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:09,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-06 12:47:09,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:09,111 INFO L124 PetriNetUnfolderBase]: 525/860 cut-off events. [2025-02-06 12:47:09,111 INFO L125 PetriNetUnfolderBase]: For 1010/1010 co-relation queries the response was YES. [2025-02-06 12:47:09,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2463 conditions, 860 events. 525/860 cut-off events. For 1010/1010 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3083 event pairs, 73 based on Foata normal form. 40/899 useless extension candidates. Maximal degree in co-relation 2448. Up to 284 conditions per place. [2025-02-06 12:47:09,115 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 49 selfloop transitions, 11 changer transitions 1/66 dead transitions. [2025-02-06 12:47:09,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 375 flow [2025-02-06 12:47:09,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:47:09,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:47:09,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2025-02-06 12:47:09,116 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2025-02-06 12:47:09,116 INFO L175 Difference]: Start difference. First operand has 56 places, 39 transitions, 171 flow. Second operand 6 states and 123 transitions. [2025-02-06 12:47:09,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 375 flow [2025-02-06 12:47:09,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 66 transitions, 320 flow, removed 17 selfloop flow, removed 7 redundant places. [2025-02-06 12:47:09,118 INFO L231 Difference]: Finished difference. Result has 56 places, 39 transitions, 169 flow [2025-02-06 12:47:09,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=56, PETRI_TRANSITIONS=39} [2025-02-06 12:47:09,119 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2025-02-06 12:47:09,119 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 39 transitions, 169 flow [2025-02-06 12:47:09,119 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) [2025-02-06 12:47:09,119 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:47:09,119 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] [2025-02-06 12:47:09,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 12:47:09,119 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-06 12:47:09,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:47:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash -356407217, now seen corresponding path program 1 times [2025-02-06 12:47:09,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:47:09,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566207911] [2025-02-06 12:47:09,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:47:09,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:47:09,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 12:47:09,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 12:47:09,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:47:09,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:47:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:47:09,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:47:09,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566207911] [2025-02-06 12:47:09,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566207911] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:47:09,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:47:09,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:47:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967336311] [2025-02-06 12:47:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:47:09,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:47:09,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:47:09,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:47:09,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:47:09,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-06 12:47:09,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 39 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:09,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:47:09,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-06 12:47:09,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:47:09,316 INFO L124 PetriNetUnfolderBase]: 445/715 cut-off events. [2025-02-06 12:47:09,316 INFO L125 PetriNetUnfolderBase]: For 770/770 co-relation queries the response was YES. [2025-02-06 12:47:09,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 715 events. 445/715 cut-off events. For 770/770 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2375 event pairs, 82 based on Foata normal form. 8/722 useless extension candidates. Maximal degree in co-relation 1963. Up to 444 conditions per place. [2025-02-06 12:47:09,318 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2025-02-06 12:47:09,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 327 flow [2025-02-06 12:47:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:47:09,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:47:09,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2025-02-06 12:47:09,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3798449612403101 [2025-02-06 12:47:09,319 INFO L175 Difference]: Start difference. First operand has 56 places, 39 transitions, 169 flow. Second operand 6 states and 98 transitions. [2025-02-06 12:47:09,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 327 flow [2025-02-06 12:47:09,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 255 flow, removed 10 selfloop flow, removed 8 redundant places. [2025-02-06 12:47:09,320 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2025-02-06 12:47:09,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2025-02-06 12:47:09,321 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2025-02-06 12:47:09,321 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2025-02-06 12:47:09,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:47:09,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-06 12:47:09,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-06 12:47:09,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-06 12:47:09,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-06 12:47:09,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-06 12:47:09,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 12:47:09,324 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:47:09,327 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:47:09,327 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:47:09,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:47:09 BasicIcfg [2025-02-06 12:47:09,330 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:47:09,330 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:47:09,330 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:47:09,331 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:47:09,331 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:47:00" (3/4) ... [2025-02-06 12:47:09,332 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:47:09,334 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 12:47:09,334 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 12:47:09,335 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-06 12:47:09,337 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-06 12:47:09,337 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:47:09,337 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-06 12:47:09,337 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 12:47:09,393 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:47:09,394 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:47:09,394 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:47:09,394 INFO L158 Benchmark]: Toolchain (without parser) took 9583.91ms. Allocated memory was 201.3MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 156.8MB in the beginning and 994.1MB in the end (delta: -837.3MB). Peak memory consumption was 248.9MB. Max. memory is 16.1GB. [2025-02-06 12:47:09,395 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 218.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:09,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.64ms. Allocated memory is still 201.3MB. Free memory was 156.4MB in the beginning and 136.6MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:47:09,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.00ms. Allocated memory is still 201.3MB. Free memory was 136.6MB in the beginning and 134.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:47:09,395 INFO L158 Benchmark]: Boogie Preprocessor took 33.34ms. Allocated memory is still 201.3MB. Free memory was 134.9MB in the beginning and 133.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:09,395 INFO L158 Benchmark]: IcfgBuilder took 343.29ms. Allocated memory is still 201.3MB. Free memory was 133.2MB in the beginning and 113.2MB in the end (delta: 20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:47:09,396 INFO L158 Benchmark]: TraceAbstraction took 8746.00ms. Allocated memory was 201.3MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 112.8MB in the beginning and 1.0GB in the end (delta: -889.7MB). Peak memory consumption was 215.3MB. Max. memory is 16.1GB. [2025-02-06 12:47:09,396 INFO L158 Benchmark]: Witness Printer took 63.49ms. Allocated memory is still 1.3GB. Free memory was 1.0GB in the beginning and 994.1MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:47:09,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 218.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.64ms. Allocated memory is still 201.3MB. Free memory was 156.4MB in the beginning and 136.6MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.00ms. Allocated memory is still 201.3MB. Free memory was 136.6MB in the beginning and 134.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.34ms. Allocated memory is still 201.3MB. Free memory was 134.9MB in the beginning and 133.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 343.29ms. Allocated memory is still 201.3MB. Free memory was 133.2MB in the beginning and 113.2MB in the end (delta: 20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8746.00ms. Allocated memory was 201.3MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 112.8MB in the beginning and 1.0GB in the end (delta: -889.7MB). Peak memory consumption was 215.3MB. Max. memory is 16.1GB. * Witness Printer took 63.49ms. Allocated memory is still 1.3GB. Free memory was 1.0GB in the beginning and 994.1MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 793 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 789 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2069 IncrementalHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 2 mSDtfsCounter, 2069 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=4, InterpolantAutomatonStates: 81, 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, 1.2s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 853 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! [2025-02-06 12:47:09,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE