./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/triangular-longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d 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/triangular-longer-1.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 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:11:22,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:11:22,227 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:11:22,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:11:22,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:11:22,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:11:22,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:11:22,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:11:22,266 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:11:22,266 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:11:22,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:11:22,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:11:22,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:11:22,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:11:22,266 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:11:22,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:11:22,266 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:11:22,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:11:22,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:11:22,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:11:22,267 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:11:22,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:11:22,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:11:22,267 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 -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2025-02-08 08:11:22,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:11:22,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:11:22,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:11:22,494 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:11:22,494 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:11:22,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-1.i [2025-02-08 08:11:23,609 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c17b0fce2/7ad8534ed0f7437aaad62d1d4ba62045/FLAGda13b9112 [2025-02-08 08:11:23,939 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:11:23,939 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2025-02-08 08:11:23,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c17b0fce2/7ad8534ed0f7437aaad62d1d4ba62045/FLAGda13b9112 [2025-02-08 08:11:23,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c17b0fce2/7ad8534ed0f7437aaad62d1d4ba62045 [2025-02-08 08:11:23,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:11:23,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:11:23,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:11:23,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:11:23,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:11:23,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:11:23" (1/1) ... [2025-02-08 08:11:23,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d09e8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:23, skipping insertion in model container [2025-02-08 08:11:23,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:11:23" (1/1) ... [2025-02-08 08:11:24,005 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:11:24,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:11:24,207 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:11:24,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:11:24,259 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:11:24,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24 WrapperNode [2025-02-08 08:11:24,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:11:24,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:11:24,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:11:24,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:11:24,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,280 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2025-02-08 08:11:24,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:11:24,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:11:24,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:11:24,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:11:24,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,286 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,292 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]. [2025-02-08 08:11:24,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,295 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:11:24,298 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:11:24,298 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:11:24,298 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:11:24,298 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (1/1) ... [2025-02-08 08:11:24,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:11:24,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:24,320 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) [2025-02-08 08:11:24,324 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 [2025-02-08 08:11:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-02-08 08:11:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-02-08 08:11:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-02-08 08:11:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-02-08 08:11:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:11:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:11:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:11:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:11:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:11:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:11:24,338 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:11:24,407 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:11:24,408 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:11:24,511 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:11:24,511 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:11:24,557 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:11:24,558 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:11:24,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:24 BoogieIcfgContainer [2025-02-08 08:11:24,558 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:11:24,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:11:24,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:11:24,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:11:24,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:11:23" (1/3) ... [2025-02-08 08:11:24,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ca2905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:11:24, skipping insertion in model container [2025-02-08 08:11:24,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:11:24" (2/3) ... [2025-02-08 08:11:24,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ca2905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:11:24, skipping insertion in model container [2025-02-08 08:11:24,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:24" (3/3) ... [2025-02-08 08:11:24,566 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2025-02-08 08:11:24,575 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:11:24,576 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longer-1.i that has 3 procedures, 26 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-08 08:11:24,576 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:11:24,602 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:11:24,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2025-02-08 08:11:24,638 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2025-02-08 08:11:24,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:11:24,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 4/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-02-08 08:11:24,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2025-02-08 08:11:24,643 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2025-02-08 08:11:24,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:11:24,655 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;@6bd4414d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:11:24,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 08:11:24,662 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:11:24,662 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2025-02-08 08:11:24,662 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:11:24,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:24,662 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:24,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:24,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:24,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1190746502, now seen corresponding path program 1 times [2025-02-08 08:11:24,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:24,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627054533] [2025-02-08 08:11:24,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:24,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:24,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 08:11:24,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 08:11:24,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:24,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:24,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:24,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627054533] [2025-02-08 08:11:24,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627054533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:24,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:24,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:11:24,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830377597] [2025-02-08 08:11:24,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:24,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:11:24,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:24,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:11:24,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:11:24,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:24,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2025-02-08 08:11:24,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:24,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:24,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:25,013 INFO L124 PetriNetUnfolderBase]: 185/359 cut-off events. [2025-02-08 08:11:25,014 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 08:11:25,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 359 events. 185/359 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1574 event pairs, 135 based on Foata normal form. 32/386 useless extension candidates. Maximal degree in co-relation 653. Up to 290 conditions per place. [2025-02-08 08:11:25,017 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 15 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2025-02-08 08:11:25,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 86 flow [2025-02-08 08:11:25,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:11:25,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:11:25,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2025-02-08 08:11:25,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2025-02-08 08:11:25,026 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 44 transitions. [2025-02-08 08:11:25,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 86 flow [2025-02-08 08:11:25,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:11:25,030 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2025-02-08 08:11:25,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2025-02-08 08:11:25,034 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2025-02-08 08:11:25,034 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2025-02-08 08:11:25,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2025-02-08 08:11:25,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:25,034 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:25,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:11:25,035 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:25,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1190746953, now seen corresponding path program 1 times [2025-02-08 08:11:25,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:25,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531706792] [2025-02-08 08:11:25,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:25,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:25,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 08:11:25,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 08:11:25,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:25,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:25,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:25,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531706792] [2025-02-08 08:11:25,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531706792] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:25,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:25,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:11:25,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061756809] [2025-02-08 08:11:25,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:25,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:11:25,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:25,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:11:25,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:11:25,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:25,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-08 08:11:25,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:25,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:25,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:25,301 INFO L124 PetriNetUnfolderBase]: 273/487 cut-off events. [2025-02-08 08:11:25,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:11:25,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 487 events. 273/487 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1985 event pairs, 45 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 921. Up to 181 conditions per place. [2025-02-08 08:11:25,304 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 25 selfloop transitions, 4 changer transitions 21/54 dead transitions. [2025-02-08 08:11:25,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 54 transitions, 212 flow [2025-02-08 08:11:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:11:25,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:11:25,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2025-02-08 08:11:25,305 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2025-02-08 08:11:25,305 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 6 states and 99 transitions. [2025-02-08 08:11:25,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 54 transitions, 212 flow [2025-02-08 08:11:25,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 54 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:11:25,307 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 74 flow [2025-02-08 08:11:25,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2025-02-08 08:11:25,307 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2025-02-08 08:11:25,307 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 74 flow [2025-02-08 08:11:25,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-08 08:11:25,307 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:25,307 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:25,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:11:25,307 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:25,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1318103228, now seen corresponding path program 1 times [2025-02-08 08:11:25,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:25,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527970555] [2025-02-08 08:11:25,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:25,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:25,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 08:11:25,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 08:11:25,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:25,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:25,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527970555] [2025-02-08 08:11:25,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527970555] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:25,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:25,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:11:25,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481036353] [2025-02-08 08:11:25,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:25,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:11:25,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:25,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:11:25,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:11:25,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:25,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2025-02-08 08:11:25,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:25,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:25,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:25,678 INFO L124 PetriNetUnfolderBase]: 382/704 cut-off events. [2025-02-08 08:11:25,678 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2025-02-08 08:11:25,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 704 events. 382/704 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3083 event pairs, 65 based on Foata normal form. 27/727 useless extension candidates. Maximal degree in co-relation 1591. Up to 246 conditions per place. [2025-02-08 08:11:25,684 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 9 changer transitions 20/79 dead transitions. [2025-02-08 08:11:25,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 79 transitions, 382 flow [2025-02-08 08:11:25,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:11:25,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:11:25,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2025-02-08 08:11:25,688 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2025-02-08 08:11:25,688 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 74 flow. Second operand 9 states and 144 transitions. [2025-02-08 08:11:25,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 79 transitions, 382 flow [2025-02-08 08:11:25,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 79 transitions, 366 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-08 08:11:25,693 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 159 flow [2025-02-08 08:11:25,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2025-02-08 08:11:25,695 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2025-02-08 08:11:25,695 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 159 flow [2025-02-08 08:11:25,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2025-02-08 08:11:25,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:25,695 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:25,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:11:25,696 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:25,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:25,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1201091516, now seen corresponding path program 2 times [2025-02-08 08:11:25,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:25,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888721626] [2025-02-08 08:11:25,697 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:11:25,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:25,704 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-02-08 08:11:25,708 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 08:11:25,709 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:11:25,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:25,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:25,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888721626] [2025-02-08 08:11:25,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888721626] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:25,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:25,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:11:25,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631400513] [2025-02-08 08:11:25,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:25,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:11:25,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:25,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:11:25,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:11:25,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:25,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2025-02-08 08:11:25,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:25,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:25,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:25,980 INFO L124 PetriNetUnfolderBase]: 328/611 cut-off events. [2025-02-08 08:11:25,980 INFO L125 PetriNetUnfolderBase]: For 971/971 co-relation queries the response was YES. [2025-02-08 08:11:25,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 611 events. 328/611 cut-off events. For 971/971 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2599 event pairs, 65 based on Foata normal form. 45/652 useless extension candidates. Maximal degree in co-relation 1723. Up to 234 conditions per place. [2025-02-08 08:11:25,983 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 38 selfloop transitions, 9 changer transitions 28/79 dead transitions. [2025-02-08 08:11:25,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 499 flow [2025-02-08 08:11:25,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:11:25,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:11:25,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2025-02-08 08:11:25,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5474137931034483 [2025-02-08 08:11:25,984 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 159 flow. Second operand 8 states and 127 transitions. [2025-02-08 08:11:25,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 499 flow [2025-02-08 08:11:25,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 79 transitions, 491 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-08 08:11:25,988 INFO L231 Difference]: Finished difference. Result has 51 places, 34 transitions, 213 flow [2025-02-08 08:11:25,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=213, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2025-02-08 08:11:25,989 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2025-02-08 08:11:25,989 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 213 flow [2025-02-08 08:11:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2025-02-08 08:11:25,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:25,989 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:25,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:11:25,989 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:25,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1701427140, now seen corresponding path program 1 times [2025-02-08 08:11:25,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:25,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171982126] [2025-02-08 08:11:25,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:25,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:25,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 08:11:25,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 08:11:25,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:25,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:26,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:26,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171982126] [2025-02-08 08:11:26,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171982126] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:26,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:26,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:11:26,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585967469] [2025-02-08 08:11:26,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:26,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:11:26,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:26,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:11:26,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:11:26,138 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:26,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 34 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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) [2025-02-08 08:11:26,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:26,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:26,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:26,314 INFO L124 PetriNetUnfolderBase]: 355/662 cut-off events. [2025-02-08 08:11:26,315 INFO L125 PetriNetUnfolderBase]: For 1747/1747 co-relation queries the response was YES. [2025-02-08 08:11:26,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 662 events. 355/662 cut-off events. For 1747/1747 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2886 event pairs, 86 based on Foata normal form. 18/676 useless extension candidates. Maximal degree in co-relation 2046. Up to 258 conditions per place. [2025-02-08 08:11:26,318 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 16 changer transitions 21/84 dead transitions. [2025-02-08 08:11:26,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 600 flow [2025-02-08 08:11:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:11:26,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:11:26,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2025-02-08 08:11:26,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2025-02-08 08:11:26,322 INFO L175 Difference]: Start difference. First operand has 51 places, 34 transitions, 213 flow. Second operand 9 states and 140 transitions. [2025-02-08 08:11:26,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 600 flow [2025-02-08 08:11:26,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 84 transitions, 530 flow, removed 24 selfloop flow, removed 7 redundant places. [2025-02-08 08:11:26,330 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 300 flow [2025-02-08 08:11:26,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=300, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-02-08 08:11:26,330 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2025-02-08 08:11:26,330 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 300 flow [2025-02-08 08:11:26,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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) [2025-02-08 08:11:26,331 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:26,331 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:26,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:11:26,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:26,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:26,331 INFO L85 PathProgramCache]: Analyzing trace with hash 661783278, now seen corresponding path program 2 times [2025-02-08 08:11:26,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:26,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237629078] [2025-02-08 08:11:26,332 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:11:26,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:26,341 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-02-08 08:11:26,343 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 08:11:26,344 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:11:26,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:26,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:26,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:26,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237629078] [2025-02-08 08:11:26,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237629078] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:26,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:26,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:11:26,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976076602] [2025-02-08 08:11:26,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:26,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:11:26,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:26,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:11:26,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:11:26,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:26,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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) [2025-02-08 08:11:26,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:26,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:26,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:26,677 INFO L124 PetriNetUnfolderBase]: 427/790 cut-off events. [2025-02-08 08:11:26,677 INFO L125 PetriNetUnfolderBase]: For 2386/2386 co-relation queries the response was YES. [2025-02-08 08:11:26,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2560 conditions, 790 events. 427/790 cut-off events. For 2386/2386 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3490 event pairs, 71 based on Foata normal form. 27/811 useless extension candidates. Maximal degree in co-relation 2536. Up to 223 conditions per place. [2025-02-08 08:11:26,683 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 20 changer transitions 28/95 dead transitions. [2025-02-08 08:11:26,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 710 flow [2025-02-08 08:11:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:11:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:11:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2025-02-08 08:11:26,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2025-02-08 08:11:26,686 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 300 flow. Second operand 10 states and 155 transitions. [2025-02-08 08:11:26,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 710 flow [2025-02-08 08:11:26,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 664 flow, removed 19 selfloop flow, removed 3 redundant places. [2025-02-08 08:11:26,692 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 381 flow [2025-02-08 08:11:26,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=381, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2025-02-08 08:11:26,695 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2025-02-08 08:11:26,695 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 381 flow [2025-02-08 08:11:26,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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) [2025-02-08 08:11:26,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:26,696 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:26,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:11:26,696 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:26,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:26,697 INFO L85 PathProgramCache]: Analyzing trace with hash -802339876, now seen corresponding path program 1 times [2025-02-08 08:11:26,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:26,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337693452] [2025-02-08 08:11:26,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:26,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:26,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:11:26,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:11:26,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:26,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:26,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337693452] [2025-02-08 08:11:26,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337693452] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:26,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:26,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:11:26,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349423998] [2025-02-08 08:11:26,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:26,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:11:26,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:26,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:11:26,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:11:26,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:26,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 381 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-02-08 08:11:26,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:26,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:26,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:27,029 INFO L124 PetriNetUnfolderBase]: 454/841 cut-off events. [2025-02-08 08:11:27,029 INFO L125 PetriNetUnfolderBase]: For 3899/3899 co-relation queries the response was YES. [2025-02-08 08:11:27,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3049 conditions, 841 events. 454/841 cut-off events. For 3899/3899 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3784 event pairs, 59 based on Foata normal form. 18/853 useless extension candidates. Maximal degree in co-relation 3020. Up to 157 conditions per place. [2025-02-08 08:11:27,034 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 44 selfloop transitions, 26 changer transitions 23/97 dead transitions. [2025-02-08 08:11:27,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 97 transitions, 833 flow [2025-02-08 08:11:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:11:27,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:11:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2025-02-08 08:11:27,035 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2025-02-08 08:11:27,035 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 381 flow. Second operand 10 states and 155 transitions. [2025-02-08 08:11:27,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 97 transitions, 833 flow [2025-02-08 08:11:27,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 97 transitions, 790 flow, removed 13 selfloop flow, removed 5 redundant places. [2025-02-08 08:11:27,043 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 476 flow [2025-02-08 08:11:27,043 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=476, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2025-02-08 08:11:27,043 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 39 predicate places. [2025-02-08 08:11:27,044 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 476 flow [2025-02-08 08:11:27,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-02-08 08:11:27,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:27,044 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:27,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:11:27,044 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:27,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:27,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1177167835, now seen corresponding path program 1 times [2025-02-08 08:11:27,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:27,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023093079] [2025-02-08 08:11:27,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:27,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:27,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:11:27,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:11:27,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:27,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:27,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:27,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023093079] [2025-02-08 08:11:27,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023093079] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:27,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:27,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:11:27,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643484636] [2025-02-08 08:11:27,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:27,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:11:27,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:27,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:11:27,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:11:27,239 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:27,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 476 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-02-08 08:11:27,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:27,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:27,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:27,485 INFO L124 PetriNetUnfolderBase]: 490/914 cut-off events. [2025-02-08 08:11:27,486 INFO L125 PetriNetUnfolderBase]: For 5989/5989 co-relation queries the response was YES. [2025-02-08 08:11:27,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3595 conditions, 914 events. 490/914 cut-off events. For 5989/5989 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4195 event pairs, 149 based on Foata normal form. 27/937 useless extension candidates. Maximal degree in co-relation 3564. Up to 504 conditions per place. [2025-02-08 08:11:27,492 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 53 selfloop transitions, 15 changer transitions 31/103 dead transitions. [2025-02-08 08:11:27,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 103 transitions, 992 flow [2025-02-08 08:11:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:11:27,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:11:27,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 168 transitions. [2025-02-08 08:11:27,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5266457680250783 [2025-02-08 08:11:27,493 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 476 flow. Second operand 11 states and 168 transitions. [2025-02-08 08:11:27,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 103 transitions, 992 flow [2025-02-08 08:11:27,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 103 transitions, 914 flow, removed 22 selfloop flow, removed 7 redundant places. [2025-02-08 08:11:27,505 INFO L231 Difference]: Finished difference. Result has 75 places, 51 transitions, 495 flow [2025-02-08 08:11:27,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=495, PETRI_PLACES=75, PETRI_TRANSITIONS=51} [2025-02-08 08:11:27,505 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 45 predicate places. [2025-02-08 08:11:27,505 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 51 transitions, 495 flow [2025-02-08 08:11:27,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-02-08 08:11:27,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:27,506 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:27,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:11:27,506 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:27,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:27,506 INFO L85 PathProgramCache]: Analyzing trace with hash 70472077, now seen corresponding path program 2 times [2025-02-08 08:11:27,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:27,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084802770] [2025-02-08 08:11:27,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:11:27,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:27,511 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:11:27,514 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:11:27,514 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:11:27,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:27,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:27,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084802770] [2025-02-08 08:11:27,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084802770] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:27,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:27,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:11:27,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948325032] [2025-02-08 08:11:27,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:27,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:11:27,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:27,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:11:27,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:11:27,614 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:27,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 51 transitions, 495 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-02-08 08:11:27,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:27,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:27,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:27,902 INFO L124 PetriNetUnfolderBase]: 643/1208 cut-off events. [2025-02-08 08:11:27,902 INFO L125 PetriNetUnfolderBase]: For 10461/10461 co-relation queries the response was YES. [2025-02-08 08:11:27,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 1208 events. 643/1208 cut-off events. For 10461/10461 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5891 event pairs, 122 based on Foata normal form. 27/1231 useless extension candidates. Maximal degree in co-relation 5082. Up to 429 conditions per place. [2025-02-08 08:11:27,911 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 73 selfloop transitions, 25 changer transitions 31/133 dead transitions. [2025-02-08 08:11:27,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 133 transitions, 1319 flow [2025-02-08 08:11:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 08:11:27,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 08:11:27,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 232 transitions. [2025-02-08 08:11:27,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2025-02-08 08:11:27,913 INFO L175 Difference]: Start difference. First operand has 75 places, 51 transitions, 495 flow. Second operand 15 states and 232 transitions. [2025-02-08 08:11:27,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 133 transitions, 1319 flow [2025-02-08 08:11:27,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 133 transitions, 1148 flow, removed 73 selfloop flow, removed 8 redundant places. [2025-02-08 08:11:27,928 INFO L231 Difference]: Finished difference. Result has 85 places, 57 transitions, 603 flow [2025-02-08 08:11:27,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=603, PETRI_PLACES=85, PETRI_TRANSITIONS=57} [2025-02-08 08:11:27,928 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 55 predicate places. [2025-02-08 08:11:27,928 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 57 transitions, 603 flow [2025-02-08 08:11:27,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-02-08 08:11:27,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:27,929 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:27,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:11:27,929 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:27,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:27,930 INFO L85 PathProgramCache]: Analyzing trace with hash 128005687, now seen corresponding path program 3 times [2025-02-08 08:11:27,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:27,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000654569] [2025-02-08 08:11:27,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:11:27,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:27,934 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:11:27,937 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:11:27,937 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:11:27,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:28,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:28,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000654569] [2025-02-08 08:11:28,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000654569] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:11:28,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:11:28,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:11:28,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639354936] [2025-02-08 08:11:28,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:11:28,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:11:28,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:28,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:11:28,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:11:28,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:28,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 57 transitions, 603 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-02-08 08:11:28,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:28,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:28,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:28,452 INFO L124 PetriNetUnfolderBase]: 616/1145 cut-off events. [2025-02-08 08:11:28,453 INFO L125 PetriNetUnfolderBase]: For 11654/11654 co-relation queries the response was YES. [2025-02-08 08:11:28,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5072 conditions, 1145 events. 616/1145 cut-off events. For 11654/11654 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5501 event pairs, 106 based on Foata normal form. 45/1186 useless extension candidates. Maximal degree in co-relation 5034. Up to 316 conditions per place. [2025-02-08 08:11:28,460 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 62 selfloop transitions, 31 changer transitions 41/138 dead transitions. [2025-02-08 08:11:28,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 138 transitions, 1455 flow [2025-02-08 08:11:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 08:11:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 08:11:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 231 transitions. [2025-02-08 08:11:28,461 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5310344827586206 [2025-02-08 08:11:28,461 INFO L175 Difference]: Start difference. First operand has 85 places, 57 transitions, 603 flow. Second operand 15 states and 231 transitions. [2025-02-08 08:11:28,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 138 transitions, 1455 flow [2025-02-08 08:11:28,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 138 transitions, 1291 flow, removed 66 selfloop flow, removed 8 redundant places. [2025-02-08 08:11:28,482 INFO L231 Difference]: Finished difference. Result has 94 places, 60 transitions, 672 flow [2025-02-08 08:11:28,482 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=672, PETRI_PLACES=94, PETRI_TRANSITIONS=60} [2025-02-08 08:11:28,482 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 64 predicate places. [2025-02-08 08:11:28,482 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 60 transitions, 672 flow [2025-02-08 08:11:28,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2025-02-08 08:11:28,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:28,483 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:28,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:11:28,483 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:28,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:28,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1869791787, now seen corresponding path program 1 times [2025-02-08 08:11:28,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:28,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680045930] [2025-02-08 08:11:28,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:28,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:11:28,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:11:28,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:28,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:28,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:28,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:28,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680045930] [2025-02-08 08:11:28,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680045930] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:28,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33133650] [2025-02-08 08:11:28,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:11:28,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:28,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:28,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:28,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 08:11:28,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:11:28,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:11:28,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:28,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:28,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 08:11:28,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:28,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:28,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:28,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:28,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33133650] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:28,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:28,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-02-08 08:11:28,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500921743] [2025-02-08 08:11:28,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:28,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 08:11:28,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:28,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 08:11:28,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2025-02-08 08:11:28,900 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:28,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 60 transitions, 672 flow. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 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) [2025-02-08 08:11:28,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:28,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:28,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:29,460 INFO L124 PetriNetUnfolderBase]: 868/1619 cut-off events. [2025-02-08 08:11:29,460 INFO L125 PetriNetUnfolderBase]: For 21663/21663 co-relation queries the response was YES. [2025-02-08 08:11:29,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7850 conditions, 1619 events. 868/1619 cut-off events. For 21663/21663 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8194 event pairs, 32 based on Foata normal form. 72/1687 useless extension candidates. Maximal degree in co-relation 7810. Up to 264 conditions per place. [2025-02-08 08:11:29,470 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 79 selfloop transitions, 56 changer transitions 88/227 dead transitions. [2025-02-08 08:11:29,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 227 transitions, 2543 flow [2025-02-08 08:11:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-02-08 08:11:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-02-08 08:11:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 425 transitions. [2025-02-08 08:11:29,474 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5233990147783252 [2025-02-08 08:11:29,474 INFO L175 Difference]: Start difference. First operand has 94 places, 60 transitions, 672 flow. Second operand 28 states and 425 transitions. [2025-02-08 08:11:29,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 227 transitions, 2543 flow [2025-02-08 08:11:29,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 227 transitions, 2384 flow, removed 52 selfloop flow, removed 13 redundant places. [2025-02-08 08:11:29,501 INFO L231 Difference]: Finished difference. Result has 123 places, 78 transitions, 1134 flow [2025-02-08 08:11:29,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1134, PETRI_PLACES=123, PETRI_TRANSITIONS=78} [2025-02-08 08:11:29,502 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 93 predicate places. [2025-02-08 08:11:29,502 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 78 transitions, 1134 flow [2025-02-08 08:11:29,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 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) [2025-02-08 08:11:29,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:29,503 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:29,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:11:29,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-08 08:11:29,704 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:29,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:29,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1698801014, now seen corresponding path program 2 times [2025-02-08 08:11:29,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:29,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346469738] [2025-02-08 08:11:29,704 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:11:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:29,709 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-02-08 08:11:29,712 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:11:29,712 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:11:29,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:29,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:29,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:29,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346469738] [2025-02-08 08:11:29,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346469738] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:29,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476117104] [2025-02-08 08:11:29,799 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:11:29,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:29,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:29,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:29,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 08:11:29,833 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-02-08 08:11:29,842 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:11:29,842 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:11:29,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:29,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:11:29,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:29,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:30,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:30,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476117104] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:30,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:30,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-02-08 08:11:30,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938217515] [2025-02-08 08:11:30,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:30,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 08:11:30,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:30,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 08:11:30,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2025-02-08 08:11:30,013 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:30,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 78 transitions, 1134 flow. Second operand has 17 states, 17 states have (on average 10.117647058823529) internal successors, (172), 17 states have internal predecessors, (172), 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) [2025-02-08 08:11:30,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:30,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:30,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:30,783 INFO L124 PetriNetUnfolderBase]: 1390/2614 cut-off events. [2025-02-08 08:11:30,784 INFO L125 PetriNetUnfolderBase]: For 101141/101141 co-relation queries the response was YES. [2025-02-08 08:11:30,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17915 conditions, 2614 events. 1390/2614 cut-off events. For 101141/101141 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14335 event pairs, 50 based on Foata normal form. 90/2700 useless extension candidates. Maximal degree in co-relation 17861. Up to 522 conditions per place. [2025-02-08 08:11:30,846 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 120 selfloop transitions, 88 changer transitions 110/322 dead transitions. [2025-02-08 08:11:30,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 322 transitions, 5369 flow [2025-02-08 08:11:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-08 08:11:30,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2025-02-08 08:11:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 567 transitions. [2025-02-08 08:11:30,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5284249767008388 [2025-02-08 08:11:30,848 INFO L175 Difference]: Start difference. First operand has 123 places, 78 transitions, 1134 flow. Second operand 37 states and 567 transitions. [2025-02-08 08:11:30,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 322 transitions, 5369 flow [2025-02-08 08:11:30,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 322 transitions, 4155 flow, removed 577 selfloop flow, removed 16 redundant places. [2025-02-08 08:11:30,907 INFO L231 Difference]: Finished difference. Result has 160 places, 114 transitions, 1928 flow [2025-02-08 08:11:30,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1928, PETRI_PLACES=160, PETRI_TRANSITIONS=114} [2025-02-08 08:11:30,908 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 130 predicate places. [2025-02-08 08:11:30,908 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 114 transitions, 1928 flow [2025-02-08 08:11:30,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.117647058823529) internal successors, (172), 17 states have internal predecessors, (172), 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) [2025-02-08 08:11:30,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:30,908 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:30,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 08:11:31,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:31,109 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:31,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:31,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1645902612, now seen corresponding path program 3 times [2025-02-08 08:11:31,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:31,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977096022] [2025-02-08 08:11:31,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:11:31,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:31,113 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 5 equivalence classes. [2025-02-08 08:11:31,119 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 08:11:31,119 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-02-08 08:11:31,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:31,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:31,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977096022] [2025-02-08 08:11:31,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977096022] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:31,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158529291] [2025-02-08 08:11:31,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:11:31,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:31,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:31,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:31,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 08:11:31,269 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 28 statements into 5 equivalence classes. [2025-02-08 08:11:31,281 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 08:11:31,281 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-02-08 08:11:31,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:31,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 08:11:31,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:31,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:31,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:31,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158529291] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:31,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:31,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2025-02-08 08:11:31,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892529851] [2025-02-08 08:11:31,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:31,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-08 08:11:31,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:31,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-08 08:11:31,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2025-02-08 08:11:31,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:31,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 114 transitions, 1928 flow. Second operand has 20 states, 20 states have (on average 10.05) internal successors, (201), 20 states have internal predecessors, (201), 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) [2025-02-08 08:11:31,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:31,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:31,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:32,620 INFO L124 PetriNetUnfolderBase]: 1795/3431 cut-off events. [2025-02-08 08:11:32,620 INFO L125 PetriNetUnfolderBase]: For 245622/245622 co-relation queries the response was YES. [2025-02-08 08:11:32,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27498 conditions, 3431 events. 1795/3431 cut-off events. For 245622/245622 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 18478 event pairs, 46 based on Foata normal form. 135/3562 useless extension candidates. Maximal degree in co-relation 27427. Up to 714 conditions per place. [2025-02-08 08:11:32,646 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 132 selfloop transitions, 123 changer transitions 134/393 dead transitions. [2025-02-08 08:11:32,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 393 transitions, 8003 flow [2025-02-08 08:11:32,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-02-08 08:11:32,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2025-02-08 08:11:32,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 641 transitions. [2025-02-08 08:11:32,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5262725779967159 [2025-02-08 08:11:32,649 INFO L175 Difference]: Start difference. First operand has 160 places, 114 transitions, 1928 flow. Second operand 42 states and 641 transitions. [2025-02-08 08:11:32,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 393 transitions, 8003 flow [2025-02-08 08:11:32,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 393 transitions, 6303 flow, removed 814 selfloop flow, removed 24 redundant places. [2025-02-08 08:11:32,866 INFO L231 Difference]: Finished difference. Result has 192 places, 149 transitions, 2780 flow [2025-02-08 08:11:32,866 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1368, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=2780, PETRI_PLACES=192, PETRI_TRANSITIONS=149} [2025-02-08 08:11:32,867 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 162 predicate places. [2025-02-08 08:11:32,867 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 149 transitions, 2780 flow [2025-02-08 08:11:32,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.05) internal successors, (201), 20 states have internal predecessors, (201), 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) [2025-02-08 08:11:32,867 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:32,867 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:32,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 08:11:33,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:33,068 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:33,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:33,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1498830115, now seen corresponding path program 4 times [2025-02-08 08:11:33,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:33,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320238113] [2025-02-08 08:11:33,070 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:11:33,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:33,077 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 49 statements into 2 equivalence classes. [2025-02-08 08:11:33,082 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 08:11:33,082 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:11:33,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:33,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:33,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320238113] [2025-02-08 08:11:33,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320238113] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:33,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192370220] [2025-02-08 08:11:33,345 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:11:33,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:33,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:33,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:33,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 08:11:33,384 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 49 statements into 2 equivalence classes. [2025-02-08 08:11:33,395 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 08:11:33,396 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:11:33,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:33,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-08 08:11:33,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:33,520 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:33,778 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:33,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192370220] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:33,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:33,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2025-02-08 08:11:33,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681026530] [2025-02-08 08:11:33,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:33,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-02-08 08:11:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:33,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-02-08 08:11:33,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2025-02-08 08:11:33,781 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:33,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 149 transitions, 2780 flow. Second operand has 34 states, 34 states have (on average 10.029411764705882) internal successors, (341), 34 states have internal predecessors, (341), 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) [2025-02-08 08:11:33,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:33,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:33,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:35,372 INFO L124 PetriNetUnfolderBase]: 2209/4162 cut-off events. [2025-02-08 08:11:35,372 INFO L125 PetriNetUnfolderBase]: For 380333/380333 co-relation queries the response was YES. [2025-02-08 08:11:35,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36096 conditions, 4162 events. 2209/4162 cut-off events. For 380333/380333 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 21422 event pairs, 59 based on Foata normal form. 72/4228 useless extension candidates. Maximal degree in co-relation 36013. Up to 840 conditions per place. [2025-02-08 08:11:35,409 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 163 selfloop transitions, 155 changer transitions 129/451 dead transitions. [2025-02-08 08:11:35,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 451 transitions, 9942 flow [2025-02-08 08:11:35,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-08 08:11:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2025-02-08 08:11:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 731 transitions. [2025-02-08 08:11:35,414 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5251436781609196 [2025-02-08 08:11:35,414 INFO L175 Difference]: Start difference. First operand has 192 places, 149 transitions, 2780 flow. Second operand 48 states and 731 transitions. [2025-02-08 08:11:35,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 451 transitions, 9942 flow [2025-02-08 08:11:35,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 451 transitions, 8334 flow, removed 787 selfloop flow, removed 16 redundant places. [2025-02-08 08:11:35,691 INFO L231 Difference]: Finished difference. Result has 235 places, 183 transitions, 3701 flow [2025-02-08 08:11:35,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2100, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=3701, PETRI_PLACES=235, PETRI_TRANSITIONS=183} [2025-02-08 08:11:35,692 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 205 predicate places. [2025-02-08 08:11:35,692 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 183 transitions, 3701 flow [2025-02-08 08:11:35,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.029411764705882) internal successors, (341), 34 states have internal predecessors, (341), 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) [2025-02-08 08:11:35,692 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:35,692 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:35,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 08:11:35,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-08 08:11:35,897 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:35,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:35,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1221286361, now seen corresponding path program 5 times [2025-02-08 08:11:35,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:35,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917803308] [2025-02-08 08:11:35,898 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:11:35,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:35,907 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 67 statements into 11 equivalence classes. [2025-02-08 08:11:35,916 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:35,916 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 08:11:35,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:36,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:36,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917803308] [2025-02-08 08:11:36,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917803308] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:36,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020921709] [2025-02-08 08:11:36,481 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:11:36,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:36,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:36,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:36,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 08:11:36,522 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 67 statements into 11 equivalence classes. [2025-02-08 08:11:36,539 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:36,539 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-02-08 08:11:36,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:36,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-08 08:11:36,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:36,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:36,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020921709] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:36,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:36,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 28 [2025-02-08 08:11:36,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115867196] [2025-02-08 08:11:36,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:36,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-02-08 08:11:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:36,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-02-08 08:11:36,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2025-02-08 08:11:36,978 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:36,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 183 transitions, 3701 flow. Second operand has 29 states, 29 states have (on average 10.172413793103448) internal successors, (295), 29 states have internal predecessors, (295), 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) [2025-02-08 08:11:36,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:36,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:36,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:38,282 INFO L124 PetriNetUnfolderBase]: 2371/4577 cut-off events. [2025-02-08 08:11:38,282 INFO L125 PetriNetUnfolderBase]: For 546165/546165 co-relation queries the response was YES. [2025-02-08 08:11:38,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41904 conditions, 4577 events. 2371/4577 cut-off events. For 546165/546165 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 24800 event pairs, 965 based on Foata normal form. 63/4636 useless extension candidates. Maximal degree in co-relation 41808. Up to 3276 conditions per place. [2025-02-08 08:11:38,325 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 245 selfloop transitions, 35 changer transitions 99/383 dead transitions. [2025-02-08 08:11:38,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 383 transitions, 9285 flow [2025-02-08 08:11:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-02-08 08:11:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2025-02-08 08:11:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 512 transitions. [2025-02-08 08:11:38,326 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5044334975369458 [2025-02-08 08:11:38,327 INFO L175 Difference]: Start difference. First operand has 235 places, 183 transitions, 3701 flow. Second operand 35 states and 512 transitions. [2025-02-08 08:11:38,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 383 transitions, 9285 flow [2025-02-08 08:11:39,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 383 transitions, 7932 flow, removed 641 selfloop flow, removed 17 redundant places. [2025-02-08 08:11:39,161 INFO L231 Difference]: Finished difference. Result has 271 places, 203 transitions, 3736 flow [2025-02-08 08:11:39,161 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2855, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=3736, PETRI_PLACES=271, PETRI_TRANSITIONS=203} [2025-02-08 08:11:39,161 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 241 predicate places. [2025-02-08 08:11:39,161 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 203 transitions, 3736 flow [2025-02-08 08:11:39,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.172413793103448) internal successors, (295), 29 states have internal predecessors, (295), 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) [2025-02-08 08:11:39,162 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:39,162 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:39,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 08:11:39,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-08 08:11:39,366 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:39,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:39,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1699264133, now seen corresponding path program 6 times [2025-02-08 08:11:39,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:39,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854026341] [2025-02-08 08:11:39,367 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:11:39,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:39,371 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 67 statements into 12 equivalence classes. [2025-02-08 08:11:39,378 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:39,379 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-02-08 08:11:39,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:39,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:39,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854026341] [2025-02-08 08:11:39,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854026341] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:39,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085903648] [2025-02-08 08:11:39,697 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:11:39,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:39,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:39,701 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:39,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 08:11:39,741 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 67 statements into 12 equivalence classes. [2025-02-08 08:11:39,760 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:39,760 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-02-08 08:11:39,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:39,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-08 08:11:39,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:39,962 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:40,302 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:40,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085903648] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:40,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:40,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 30 [2025-02-08 08:11:40,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793025642] [2025-02-08 08:11:40,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:40,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-02-08 08:11:40,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:40,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-02-08 08:11:40,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=746, Unknown=0, NotChecked=0, Total=930 [2025-02-08 08:11:40,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:40,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 203 transitions, 3736 flow. Second operand has 31 states, 31 states have (on average 10.161290322580646) internal successors, (315), 31 states have internal predecessors, (315), 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) [2025-02-08 08:11:40,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:40,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:40,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:42,067 INFO L124 PetriNetUnfolderBase]: 2695/5316 cut-off events. [2025-02-08 08:11:42,067 INFO L125 PetriNetUnfolderBase]: For 684976/684976 co-relation queries the response was YES. [2025-02-08 08:11:42,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49105 conditions, 5316 events. 2695/5316 cut-off events. For 684976/684976 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 30048 event pairs, 644 based on Foata normal form. 63/5375 useless extension candidates. Maximal degree in co-relation 48990. Up to 2296 conditions per place. [2025-02-08 08:11:42,129 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 220 selfloop transitions, 121 changer transitions 113/458 dead transitions. [2025-02-08 08:11:42,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 458 transitions, 10391 flow [2025-02-08 08:11:42,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-02-08 08:11:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2025-02-08 08:11:42,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 619 transitions. [2025-02-08 08:11:42,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5082101806239737 [2025-02-08 08:11:42,131 INFO L175 Difference]: Start difference. First operand has 271 places, 203 transitions, 3736 flow. Second operand 42 states and 619 transitions. [2025-02-08 08:11:42,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 458 transitions, 10391 flow [2025-02-08 08:11:43,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 458 transitions, 9663 flow, removed 349 selfloop flow, removed 14 redundant places. [2025-02-08 08:11:43,231 INFO L231 Difference]: Finished difference. Result has 308 places, 239 transitions, 4743 flow [2025-02-08 08:11:43,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3302, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=4743, PETRI_PLACES=308, PETRI_TRANSITIONS=239} [2025-02-08 08:11:43,232 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 278 predicate places. [2025-02-08 08:11:43,232 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 239 transitions, 4743 flow [2025-02-08 08:11:43,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.161290322580646) internal successors, (315), 31 states have internal predecessors, (315), 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) [2025-02-08 08:11:43,232 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:43,232 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:43,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 08:11:43,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-08 08:11:43,437 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:43,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash 154098471, now seen corresponding path program 7 times [2025-02-08 08:11:43,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:43,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129620144] [2025-02-08 08:11:43,438 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:11:43,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:43,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-08 08:11:43,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:43,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:43,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:43,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:43,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129620144] [2025-02-08 08:11:43,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129620144] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:43,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33219695] [2025-02-08 08:11:43,859 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:11:43,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:43,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:43,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:43,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 08:11:43,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-08 08:11:43,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:43,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:11:43,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:43,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-08 08:11:43,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:44,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:44,315 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:44,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33219695] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:44,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:44,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 33 [2025-02-08 08:11:44,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774484110] [2025-02-08 08:11:44,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:44,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-02-08 08:11:44,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:44,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-02-08 08:11:44,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122 [2025-02-08 08:11:44,318 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:44,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 239 transitions, 4743 flow. Second operand has 34 states, 34 states have (on average 10.235294117647058) internal successors, (348), 34 states have internal predecessors, (348), 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) [2025-02-08 08:11:44,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:44,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:44,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:46,277 INFO L124 PetriNetUnfolderBase]: 2983/5976 cut-off events. [2025-02-08 08:11:46,278 INFO L125 PetriNetUnfolderBase]: For 906963/906963 co-relation queries the response was YES. [2025-02-08 08:11:46,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58910 conditions, 5976 events. 2983/5976 cut-off events. For 906963/906963 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 34787 event pairs, 332 based on Foata normal form. 63/6035 useless extension candidates. Maximal degree in co-relation 58785. Up to 1359 conditions per place. [2025-02-08 08:11:46,338 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 193 selfloop transitions, 199 changer transitions 121/517 dead transitions. [2025-02-08 08:11:46,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 517 transitions, 12709 flow [2025-02-08 08:11:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-02-08 08:11:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2025-02-08 08:11:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 685 transitions. [2025-02-08 08:11:46,340 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5134932533733133 [2025-02-08 08:11:46,340 INFO L175 Difference]: Start difference. First operand has 308 places, 239 transitions, 4743 flow. Second operand 46 states and 685 transitions. [2025-02-08 08:11:46,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 517 transitions, 12709 flow [2025-02-08 08:11:48,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 517 transitions, 11558 flow, removed 540 selfloop flow, removed 21 redundant places. [2025-02-08 08:11:48,159 INFO L231 Difference]: Finished difference. Result has 347 places, 272 transitions, 5984 flow [2025-02-08 08:11:48,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4202, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=5984, PETRI_PLACES=347, PETRI_TRANSITIONS=272} [2025-02-08 08:11:48,160 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 317 predicate places. [2025-02-08 08:11:48,160 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 272 transitions, 5984 flow [2025-02-08 08:11:48,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.235294117647058) internal successors, (348), 34 states have internal predecessors, (348), 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) [2025-02-08 08:11:48,160 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:48,160 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:48,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 08:11:48,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:48,361 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:48,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:48,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1855443307, now seen corresponding path program 8 times [2025-02-08 08:11:48,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:48,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610472552] [2025-02-08 08:11:48,363 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:11:48,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:48,368 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-02-08 08:11:48,374 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:48,374 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:11:48,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:48,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:48,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610472552] [2025-02-08 08:11:48,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610472552] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:48,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963675831] [2025-02-08 08:11:48,696 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:11:48,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:48,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:48,703 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:48,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 08:11:48,738 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-02-08 08:11:48,754 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:48,754 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:11:48,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:48,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-08 08:11:48,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:48,879 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:48,880 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:49,143 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:49,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963675831] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:49,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:49,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 31 [2025-02-08 08:11:49,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458797330] [2025-02-08 08:11:49,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:49,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-02-08 08:11:49,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:49,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-02-08 08:11:49,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=831, Unknown=0, NotChecked=0, Total=992 [2025-02-08 08:11:49,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:49,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 272 transitions, 5984 flow. Second operand has 32 states, 32 states have (on average 10.25) internal successors, (328), 32 states have internal predecessors, (328), 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) [2025-02-08 08:11:49,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:49,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:49,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:51,257 INFO L124 PetriNetUnfolderBase]: 3235/6501 cut-off events. [2025-02-08 08:11:51,257 INFO L125 PetriNetUnfolderBase]: For 1133133/1133133 co-relation queries the response was YES. [2025-02-08 08:11:51,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67666 conditions, 6501 events. 3235/6501 cut-off events. For 1133133/1133133 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 38484 event pairs, 170 based on Foata normal form. 63/6560 useless extension candidates. Maximal degree in co-relation 67526. Up to 1503 conditions per place. [2025-02-08 08:11:51,335 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 189 selfloop transitions, 248 changer transitions 131/572 dead transitions. [2025-02-08 08:11:51,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 572 transitions, 14621 flow [2025-02-08 08:11:51,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-02-08 08:11:51,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2025-02-08 08:11:51,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 765 transitions. [2025-02-08 08:11:51,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2025-02-08 08:11:51,337 INFO L175 Difference]: Start difference. First operand has 347 places, 272 transitions, 5984 flow. Second operand 51 states and 765 transitions. [2025-02-08 08:11:51,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 572 transitions, 14621 flow [2025-02-08 08:11:53,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 572 transitions, 13104 flow, removed 705 selfloop flow, removed 23 redundant places. [2025-02-08 08:11:53,601 INFO L231 Difference]: Finished difference. Result has 385 places, 297 transitions, 6926 flow [2025-02-08 08:11:53,601 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=5259, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=6926, PETRI_PLACES=385, PETRI_TRANSITIONS=297} [2025-02-08 08:11:53,601 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 355 predicate places. [2025-02-08 08:11:53,602 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 297 transitions, 6926 flow [2025-02-08 08:11:53,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 10.25) internal successors, (328), 32 states have internal predecessors, (328), 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) [2025-02-08 08:11:53,602 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:53,602 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:53,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 08:11:53,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 08:11:53,806 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:53,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:53,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1368427361, now seen corresponding path program 9 times [2025-02-08 08:11:53,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:53,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720385302] [2025-02-08 08:11:53,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:11:53,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:53,811 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 67 statements into 9 equivalence classes. [2025-02-08 08:11:53,828 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:53,829 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-02-08 08:11:53,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:54,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720385302] [2025-02-08 08:11:54,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720385302] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834247579] [2025-02-08 08:11:54,143 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:11:54,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:54,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:54,144 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:11:54,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 08:11:54,184 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 67 statements into 9 equivalence classes. [2025-02-08 08:11:54,212 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 08:11:54,213 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-02-08 08:11:54,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:54,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-08 08:11:54,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:11:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 1 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:54,310 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:11:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:54,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834247579] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:11:54,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:11:54,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 33 [2025-02-08 08:11:54,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404434172] [2025-02-08 08:11:54,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:11:54,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-02-08 08:11:54,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:11:54,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-02-08 08:11:54,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122 [2025-02-08 08:11:54,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:11:54,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 297 transitions, 6926 flow. Second operand has 34 states, 34 states have (on average 10.205882352941176) internal successors, (347), 34 states have internal predecessors, (347), 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) [2025-02-08 08:11:54,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:11:54,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:11:54,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:11:57,193 INFO L124 PetriNetUnfolderBase]: 3550/7083 cut-off events. [2025-02-08 08:11:57,194 INFO L125 PetriNetUnfolderBase]: For 1271626/1271626 co-relation queries the response was YES. [2025-02-08 08:11:57,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75490 conditions, 7083 events. 3550/7083 cut-off events. For 1271626/1271626 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 42384 event pairs, 92 based on Foata normal form. 72/7151 useless extension candidates. Maximal degree in co-relation 75338. Up to 1635 conditions per place. [2025-02-08 08:11:57,300 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 196 selfloop transitions, 287 changer transitions 146/633 dead transitions. [2025-02-08 08:11:57,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 633 transitions, 16816 flow [2025-02-08 08:11:57,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-02-08 08:11:57,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2025-02-08 08:11:57,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 861 transitions. [2025-02-08 08:11:57,302 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5208711433756806 [2025-02-08 08:11:57,302 INFO L175 Difference]: Start difference. First operand has 385 places, 297 transitions, 6926 flow. Second operand 57 states and 861 transitions. [2025-02-08 08:11:57,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 633 transitions, 16816 flow [2025-02-08 08:11:59,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 633 transitions, 15574 flow, removed 522 selfloop flow, removed 28 redundant places. [2025-02-08 08:11:59,430 INFO L231 Difference]: Finished difference. Result has 425 places, 321 transitions, 8082 flow [2025-02-08 08:11:59,430 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6128, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=8082, PETRI_PLACES=425, PETRI_TRANSITIONS=321} [2025-02-08 08:11:59,431 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 395 predicate places. [2025-02-08 08:11:59,431 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 321 transitions, 8082 flow [2025-02-08 08:11:59,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.205882352941176) internal successors, (347), 34 states have internal predecessors, (347), 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) [2025-02-08 08:11:59,431 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:11:59,431 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:11:59,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 08:11:59,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:59,636 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:11:59,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:11:59,637 INFO L85 PathProgramCache]: Analyzing trace with hash -203776745, now seen corresponding path program 10 times [2025-02-08 08:11:59,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:11:59,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644897546] [2025-02-08 08:11:59,637 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:11:59,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:11:59,641 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 70 statements into 2 equivalence classes. [2025-02-08 08:11:59,645 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:11:59,645 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:11:59,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:11:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:11:59,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:11:59,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644897546] [2025-02-08 08:11:59,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644897546] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:11:59,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198767267] [2025-02-08 08:11:59,992 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:11:59,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:11:59,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:11:59,995 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:12:00,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 08:12:00,030 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 70 statements into 2 equivalence classes. [2025-02-08 08:12:00,045 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:12:00,046 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:12:00,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:00,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-08 08:12:00,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:12:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:00,112 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:12:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:00,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198767267] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:12:00,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:12:00,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 24 [2025-02-08 08:12:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094963389] [2025-02-08 08:12:00,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:12:00,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-08 08:12:00,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:12:00,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-08 08:12:00,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2025-02-08 08:12:00,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:12:00,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 321 transitions, 8082 flow. Second operand has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 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) [2025-02-08 08:12:00,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:12:00,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:12:00,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:12:02,474 INFO L124 PetriNetUnfolderBase]: 3586/7244 cut-off events. [2025-02-08 08:12:02,474 INFO L125 PetriNetUnfolderBase]: For 1544159/1544159 co-relation queries the response was YES. [2025-02-08 08:12:02,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80461 conditions, 7244 events. 3586/7244 cut-off events. For 1544159/1544159 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 44014 event pairs, 257 based on Foata normal form. 27/7265 useless extension candidates. Maximal degree in co-relation 80296. Up to 1677 conditions per place. [2025-02-08 08:12:02,586 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 207 selfloop transitions, 270 changer transitions 99/580 dead transitions. [2025-02-08 08:12:02,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 580 transitions, 15992 flow [2025-02-08 08:12:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-02-08 08:12:02,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2025-02-08 08:12:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 677 transitions. [2025-02-08 08:12:02,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5187739463601533 [2025-02-08 08:12:02,588 INFO L175 Difference]: Start difference. First operand has 425 places, 321 transitions, 8082 flow. Second operand 45 states and 677 transitions. [2025-02-08 08:12:02,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 580 transitions, 15992 flow [2025-02-08 08:12:06,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 580 transitions, 13609 flow, removed 1003 selfloop flow, removed 43 redundant places. [2025-02-08 08:12:06,130 INFO L231 Difference]: Finished difference. Result has 425 places, 336 transitions, 8002 flow [2025-02-08 08:12:06,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6795, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=8002, PETRI_PLACES=425, PETRI_TRANSITIONS=336} [2025-02-08 08:12:06,130 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 395 predicate places. [2025-02-08 08:12:06,131 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 336 transitions, 8002 flow [2025-02-08 08:12:06,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 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) [2025-02-08 08:12:06,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:12:06,131 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:12:06,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-08 08:12:06,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:12:06,335 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:12:06,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:12:06,336 INFO L85 PathProgramCache]: Analyzing trace with hash 117386891, now seen corresponding path program 11 times [2025-02-08 08:12:06,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:12:06,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699023428] [2025-02-08 08:12:06,336 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:12:06,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:12:06,340 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 70 statements into 10 equivalence classes. [2025-02-08 08:12:06,345 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:12:06,345 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-02-08 08:12:06,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 1 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:06,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:12:06,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699023428] [2025-02-08 08:12:06,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699023428] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:12:06,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483944619] [2025-02-08 08:12:06,593 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:12:06,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:12:06,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:12:06,595 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:12:06,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 08:12:06,623 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 70 statements into 10 equivalence classes. [2025-02-08 08:12:06,638 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:12:06,639 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-02-08 08:12:06,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:06,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-08 08:12:06,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:12:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 1 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:06,715 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:12:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:06,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483944619] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:12:06,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:12:06,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 26 [2025-02-08 08:12:06,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396337829] [2025-02-08 08:12:06,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:12:06,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-08 08:12:06,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:12:06,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-08 08:12:06,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2025-02-08 08:12:06,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:12:06,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 336 transitions, 8002 flow. Second operand has 27 states, 27 states have (on average 10.0) internal successors, (270), 27 states have internal predecessors, (270), 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) [2025-02-08 08:12:06,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:12:06,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:12:06,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:12:09,049 INFO L124 PetriNetUnfolderBase]: 3640/7365 cut-off events. [2025-02-08 08:12:09,049 INFO L125 PetriNetUnfolderBase]: For 1301191/1301191 co-relation queries the response was YES. [2025-02-08 08:12:09,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75971 conditions, 7365 events. 3640/7365 cut-off events. For 1301191/1301191 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 45026 event pairs, 182 based on Foata normal form. 27/7388 useless extension candidates. Maximal degree in co-relation 75809. Up to 1701 conditions per place. [2025-02-08 08:12:09,170 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 211 selfloop transitions, 284 changer transitions 103/602 dead transitions. [2025-02-08 08:12:09,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 602 transitions, 15060 flow [2025-02-08 08:12:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-08 08:12:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2025-02-08 08:12:09,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 723 transitions. [2025-02-08 08:12:09,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193965517241379 [2025-02-08 08:12:09,172 INFO L175 Difference]: Start difference. First operand has 425 places, 336 transitions, 8002 flow. Second operand 48 states and 723 transitions. [2025-02-08 08:12:09,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 602 transitions, 15060 flow [2025-02-08 08:12:11,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 602 transitions, 13877 flow, removed 378 selfloop flow, removed 38 redundant places. [2025-02-08 08:12:11,762 INFO L231 Difference]: Finished difference. Result has 437 places, 343 transitions, 8256 flow [2025-02-08 08:12:11,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7235, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=8256, PETRI_PLACES=437, PETRI_TRANSITIONS=343} [2025-02-08 08:12:11,762 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 407 predicate places. [2025-02-08 08:12:11,762 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 343 transitions, 8256 flow [2025-02-08 08:12:11,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.0) internal successors, (270), 27 states have internal predecessors, (270), 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) [2025-02-08 08:12:11,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:12:11,763 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:12:11,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 08:12:11,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-02-08 08:12:11,964 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:12:11,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:12:11,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1504449877, now seen corresponding path program 12 times [2025-02-08 08:12:11,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:12:11,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583476357] [2025-02-08 08:12:11,965 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:12:11,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:12:11,968 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 70 statements into 9 equivalence classes. [2025-02-08 08:12:11,977 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:12:11,977 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-02-08 08:12:11,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:12,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:12:12,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583476357] [2025-02-08 08:12:12,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583476357] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:12:12,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143523364] [2025-02-08 08:12:12,203 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:12:12,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:12:12,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:12:12,205 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:12:12,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 08:12:12,234 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 70 statements into 9 equivalence classes. [2025-02-08 08:12:12,250 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:12:12,250 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-02-08 08:12:12,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:12,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-08 08:12:12,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:12:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:12,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:12:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:12,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143523364] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:12:12,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:12:12,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 24 [2025-02-08 08:12:12,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410441023] [2025-02-08 08:12:12,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:12:12,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-08 08:12:12,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:12:12,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-08 08:12:12,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2025-02-08 08:12:12,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:12:12,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 343 transitions, 8256 flow. Second operand has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 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) [2025-02-08 08:12:12,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:12:12,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:12:12,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:12:15,051 INFO L124 PetriNetUnfolderBase]: 3811/7687 cut-off events. [2025-02-08 08:12:15,051 INFO L125 PetriNetUnfolderBase]: For 1313210/1313210 co-relation queries the response was YES. [2025-02-08 08:12:15,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79173 conditions, 7687 events. 3811/7687 cut-off events. For 1313210/1313210 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 47322 event pairs, 173 based on Foata normal form. 27/7708 useless extension candidates. Maximal degree in co-relation 79008. Up to 1767 conditions per place. [2025-02-08 08:12:15,177 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 220 selfloop transitions, 292 changer transitions 95/611 dead transitions. [2025-02-08 08:12:15,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 611 transitions, 15595 flow [2025-02-08 08:12:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-02-08 08:12:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2025-02-08 08:12:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 713 transitions. [2025-02-08 08:12:15,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5231107850330154 [2025-02-08 08:12:15,178 INFO L175 Difference]: Start difference. First operand has 437 places, 343 transitions, 8256 flow. Second operand 47 states and 713 transitions. [2025-02-08 08:12:15,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 611 transitions, 15595 flow [2025-02-08 08:12:18,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 611 transitions, 14700 flow, removed 197 selfloop flow, removed 43 redundant places. [2025-02-08 08:12:18,230 INFO L231 Difference]: Finished difference. Result has 444 places, 351 transitions, 8726 flow [2025-02-08 08:12:18,230 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7483, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=284, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=8726, PETRI_PLACES=444, PETRI_TRANSITIONS=351} [2025-02-08 08:12:18,231 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 414 predicate places. [2025-02-08 08:12:18,231 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 351 transitions, 8726 flow [2025-02-08 08:12:18,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.92) internal successors, (248), 25 states have internal predecessors, (248), 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) [2025-02-08 08:12:18,231 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:12:18,231 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:12:18,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 08:12:18,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:12:18,436 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:12:18,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:12:18,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1703658945, now seen corresponding path program 13 times [2025-02-08 08:12:18,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:12:18,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171458475] [2025-02-08 08:12:18,437 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:12:18,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:12:18,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 08:12:18,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:12:18,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:12:18,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:18,665 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:18,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:12:18,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171458475] [2025-02-08 08:12:18,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171458475] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:12:18,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340686255] [2025-02-08 08:12:18,666 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:12:18,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:12:18,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:12:18,668 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:12:18,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 08:12:18,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-08 08:12:18,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:12:18,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:12:18,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:18,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-08 08:12:18,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:12:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:18,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:12:18,949 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:12:18,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340686255] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:12:18,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:12:18,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 25 [2025-02-08 08:12:18,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066544272] [2025-02-08 08:12:18,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:12:18,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-08 08:12:18,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:12:18,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-08 08:12:18,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2025-02-08 08:12:18,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:12:18,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 351 transitions, 8726 flow. Second operand has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 26 states have internal predecessors, (258), 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) [2025-02-08 08:12:18,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:12:18,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:12:18,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:12:21,368 INFO L124 PetriNetUnfolderBase]: 3757/7607 cut-off events. [2025-02-08 08:12:21,368 INFO L125 PetriNetUnfolderBase]: For 1394437/1394437 co-relation queries the response was YES. [2025-02-08 08:12:21,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79854 conditions, 7607 events. 3757/7607 cut-off events. For 1394437/1394437 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 46857 event pairs, 164 based on Foata normal form. 45/7648 useless extension candidates. Maximal degree in co-relation 79685. Up to 1743 conditions per place. [2025-02-08 08:12:21,480 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 211 selfloop transitions, 295 changer transitions 107/617 dead transitions. [2025-02-08 08:12:21,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 617 transitions, 16063 flow [2025-02-08 08:12:21,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-08 08:12:21,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2025-02-08 08:12:21,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 725 transitions. [2025-02-08 08:12:21,482 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2025-02-08 08:12:21,482 INFO L175 Difference]: Start difference. First operand has 444 places, 351 transitions, 8726 flow. Second operand 48 states and 725 transitions. [2025-02-08 08:12:21,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 617 transitions, 16063 flow [2025-02-08 08:12:24,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 617 transitions, 14953 flow, removed 330 selfloop flow, removed 39 redundant places. [2025-02-08 08:12:24,668 INFO L231 Difference]: Finished difference. Result has 454 places, 353 transitions, 8749 flow [2025-02-08 08:12:24,668 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7940, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=293, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=8749, PETRI_PLACES=454, PETRI_TRANSITIONS=353} [2025-02-08 08:12:24,668 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 424 predicate places. [2025-02-08 08:12:24,668 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 353 transitions, 8749 flow [2025-02-08 08:12:24,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 26 states have internal predecessors, (258), 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) [2025-02-08 08:12:24,669 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:12:24,669 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:12:24,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-08 08:12:24,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:12:24,875 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:12:24,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:12:24,876 INFO L85 PathProgramCache]: Analyzing trace with hash 188137675, now seen corresponding path program 14 times [2025-02-08 08:12:24,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:12:24,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352150297] [2025-02-08 08:12:24,876 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:12:24,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:12:24,881 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-02-08 08:12:24,888 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-02-08 08:12:24,888 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:12:24,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:24,984 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 213 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 08:12:24,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:12:24,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352150297] [2025-02-08 08:12:24,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352150297] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:12:24,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142693169] [2025-02-08 08:12:24,985 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:12:24,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:12:24,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:12:24,987 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:12:24,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 08:12:25,024 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-02-08 08:12:25,041 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-02-08 08:12:25,041 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:12:25,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:25,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 08:12:25,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:12:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 08:12:25,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:12:25,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142693169] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:12:25,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 08:12:25,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2025-02-08 08:12:25,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017979192] [2025-02-08 08:12:25,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:12:25,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:12:25,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:12:25,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:12:25,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2025-02-08 08:12:25,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:12:25,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 353 transitions, 8749 flow. Second operand has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 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) [2025-02-08 08:12:25,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:12:25,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:12:25,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:12:32,987 INFO L124 PetriNetUnfolderBase]: 20125/34489 cut-off events. [2025-02-08 08:12:32,987 INFO L125 PetriNetUnfolderBase]: For 5275245/5275245 co-relation queries the response was YES. [2025-02-08 08:12:33,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319551 conditions, 34489 events. 20125/34489 cut-off events. For 5275245/5275245 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 251529 event pairs, 335 based on Foata normal form. 0/30899 useless extension candidates. Maximal degree in co-relation 319385. Up to 6638 conditions per place. [2025-02-08 08:12:33,742 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 105 selfloop transitions, 12 changer transitions 1801/1921 dead transitions. [2025-02-08 08:12:33,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 1921 transitions, 46926 flow [2025-02-08 08:12:33,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:12:33,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:12:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 251 transitions. [2025-02-08 08:12:33,743 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6657824933687002 [2025-02-08 08:12:33,743 INFO L175 Difference]: Start difference. First operand has 454 places, 353 transitions, 8749 flow. Second operand 13 states and 251 transitions. [2025-02-08 08:12:33,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 1921 transitions, 46926 flow [2025-02-08 08:12:44,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1921 transitions, 42378 flow, removed 521 selfloop flow, removed 59 redundant places. [2025-02-08 08:12:44,691 INFO L231 Difference]: Finished difference. Result has 399 places, 51 transitions, 678 flow [2025-02-08 08:12:44,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6637, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=678, PETRI_PLACES=399, PETRI_TRANSITIONS=51} [2025-02-08 08:12:44,693 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 369 predicate places. [2025-02-08 08:12:44,693 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 51 transitions, 678 flow [2025-02-08 08:12:44,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 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) [2025-02-08 08:12:44,693 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:12:44,693 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:12:44,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 08:12:44,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-02-08 08:12:44,894 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:12:44,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:12:44,895 INFO L85 PathProgramCache]: Analyzing trace with hash 285894214, now seen corresponding path program 15 times [2025-02-08 08:12:44,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:12:44,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306685208] [2025-02-08 08:12:44,895 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:12:44,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:12:44,898 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 73 statements into 13 equivalence classes. [2025-02-08 08:12:44,904 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 73 of 73 statements. [2025-02-08 08:12:44,904 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-02-08 08:12:44,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:12:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 08:12:44,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:12:44,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306685208] [2025-02-08 08:12:44,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306685208] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:12:44,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:12:44,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-08 08:12:44,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082761049] [2025-02-08 08:12:44,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:12:44,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:12:44,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:12:44,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:12:44,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:12:45,001 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-08 08:12:45,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 51 transitions, 678 flow. Second operand has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 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) [2025-02-08 08:12:45,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:12:45,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-08 08:12:45,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:12:45,486 INFO L124 PetriNetUnfolderBase]: 1964/3426 cut-off events. [2025-02-08 08:12:45,486 INFO L125 PetriNetUnfolderBase]: For 197973/197973 co-relation queries the response was YES. [2025-02-08 08:12:45,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19719 conditions, 3426 events. 1964/3426 cut-off events. For 197973/197973 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 16618 event pairs, 48 based on Foata normal form. 0/3066 useless extension candidates. Maximal degree in co-relation 19568. Up to 671 conditions per place. [2025-02-08 08:12:45,525 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 0 selfloop transitions, 0 changer transitions 271/271 dead transitions. [2025-02-08 08:12:45,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 271 transitions, 3873 flow [2025-02-08 08:12:45,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:12:45,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:12:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 205 transitions. [2025-02-08 08:12:45,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5437665782493368 [2025-02-08 08:12:45,526 INFO L175 Difference]: Start difference. First operand has 399 places, 51 transitions, 678 flow. Second operand 13 states and 205 transitions. [2025-02-08 08:12:45,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 271 transitions, 3873 flow [2025-02-08 08:12:45,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 271 transitions, 1960 flow, removed 597 selfloop flow, removed 89 redundant places. [2025-02-08 08:12:45,586 INFO L231 Difference]: Finished difference. Result has 157 places, 0 transitions, 0 flow [2025-02-08 08:12:45,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=157, PETRI_TRANSITIONS=0} [2025-02-08 08:12:45,587 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 127 predicate places. [2025-02-08 08:12:45,587 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 0 transitions, 0 flow [2025-02-08 08:12:45,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 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) [2025-02-08 08:12:45,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-08 08:12:45,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-02-08 08:12:45,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-08 08:12:45,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-08 08:12:45,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-08 08:12:45,592 INFO L422 BasicCegarLoop]: Path program histogram: [15, 3, 2, 2, 1, 1, 1] [2025-02-08 08:12:45,595 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:12:45,595 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:12:45,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:12:45 BasicIcfg [2025-02-08 08:12:45,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:12:45,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:12:45,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:12:45,601 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:12:45,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:11:24" (3/4) ... [2025-02-08 08:12:45,603 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:12:45,607 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t1 [2025-02-08 08:12:45,607 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t2 [2025-02-08 08:12:45,608 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-02-08 08:12:45,608 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 08:12:45,608 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-08 08:12:45,608 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 08:12:45,609 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:12:45,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:12:45,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:12:45,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:12:45,670 INFO L158 Benchmark]: Toolchain (without parser) took 81696.53ms. Allocated memory was 142.6MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 109.6MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2025-02-08 08:12:45,670 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:12:45,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.97ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 90.7MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:12:45,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.02ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 88.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:12:45,672 INFO L158 Benchmark]: Boogie Preprocessor took 16.77ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.8MB in the end (delta: 938.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:12:45,672 INFO L158 Benchmark]: IcfgBuilder took 260.55ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 69.2MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:12:45,673 INFO L158 Benchmark]: TraceAbstraction took 81040.30ms. Allocated memory was 142.6MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 68.3MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2025-02-08 08:12:45,673 INFO L158 Benchmark]: Witness Printer took 68.48ms. Allocated memory is still 5.7GB. Free memory was 3.2GB in the beginning and 3.2GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:12:45,674 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.97ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 90.7MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.02ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 88.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.77ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.8MB in the end (delta: 938.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 260.55ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 69.2MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 81040.30ms. Allocated memory was 142.6MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 68.3MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 68.48ms. Allocated memory is still 5.7GB. Free memory was 3.2GB in the beginning and 3.2GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 38 locations, 4 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: 81.0s, OverallIterations: 25, TraceHistogramMax: 11, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 67.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9085 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9075 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 566 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9737 IncrementalHoareTripleChecker+Invalid, 10303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 566 mSolverCounterUnsat, 3 mSDtfsCounter, 9737 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2411 GetRequests, 1374 SyntacticMatches, 93 SemanticMatches, 944 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15786 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8749occurred in iteration=23, InterpolantAutomatonStates: 696, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 1851 NumberOfCodeBlocks, 1851 NumberOfCodeBlocksAsserted, 161 NumberOfCheckSat, 2538 ConstructedInterpolants, 0 QuantifiedInterpolants, 10369 SizeOfPredicates, 216 NumberOfNonLiveVariables, 2184 ConjunctsInSsa, 293 ConjunctsInUnsatCore, 52 InterpolantComputations, 12 PerfectInterpolantSequences, 743/5598 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! [2025-02-08 08:12:45,693 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