./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/triangular-longer-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:22:20,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:22:20,341 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:22:20,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:22:20,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:22:20,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:22:20,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:22:20,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:22:20,381 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:22:20,382 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:22:20,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:22:20,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:22:20,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:22:20,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:22:20,386 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:22:20,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:22:20,387 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:22:20,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:22:20,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:22:20,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:22:20,389 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:22:20,389 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:22:20,390 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:22:20,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:22:20,390 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:22:20,391 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:22:20,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:22:20,391 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:22:20,391 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:22:20,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:22:20,392 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:22:20,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:22:20,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:22:20,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:22:20,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:22:20,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:22:20,395 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:22:20,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:22:20,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:22:20,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:22:20,395 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:22:20,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:22:20,397 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2024-11-09 10:22:20,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:22:20,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:22:20,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:22:20,685 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:22:20,686 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:22:20,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-1.i [2024-11-09 10:22:22,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:22:22,408 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:22:22,409 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2024-11-09 10:22:22,429 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68fdf8252/3bd6c088c6a34500a14339c9f46789e5/FLAG2af40d1a2 [2024-11-09 10:22:22,451 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68fdf8252/3bd6c088c6a34500a14339c9f46789e5 [2024-11-09 10:22:22,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:22:22,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:22:22,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:22:22,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:22:22,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:22:22,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:22,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a6921d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22, skipping insertion in model container [2024-11-09 10:22:22,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:22,519 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:22:22,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:22:22,901 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:22:22,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:22:22,990 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:22:22,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22 WrapperNode [2024-11-09 10:22:22,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:22:22,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:22:22,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:22:22,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:22:23,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,046 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-11-09 10:22:23,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:22:23,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:22:23,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:22:23,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:22:23,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,081 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]. [2024-11-09 10:22:23,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:22:23,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:22:23,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:22:23,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:22:23,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (1/1) ... [2024-11-09 10:22:23,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:22:23,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:23,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:22:23,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:22:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-09 10:22:23,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-09 10:22:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-09 10:22:23,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-09 10:22:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:22:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:22:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:22:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:22:23,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:22:23,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:22:23,207 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:22:23,324 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:22:23,326 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:22:23,487 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:22:23,489 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:22:23,595 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:22:23,596 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 10:22:23,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:22:23 BoogieIcfgContainer [2024-11-09 10:22:23,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:22:23,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:22:23,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:22:23,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:22:23,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:22:22" (1/3) ... [2024-11-09 10:22:23,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607fdb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:22:23, skipping insertion in model container [2024-11-09 10:22:23,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:22:22" (2/3) ... [2024-11-09 10:22:23,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607fdb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:22:23, skipping insertion in model container [2024-11-09 10:22:23,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:22:23" (3/3) ... [2024-11-09 10:22:23,606 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2024-11-09 10:22:23,643 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:22:23,645 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 10:22:23,645 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:22:23,743 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:22:23,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2024-11-09 10:22:23,811 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2024-11-09 10:22:23,811 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:22:23,818 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 40 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. [2024-11-09 10:22:23,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2024-11-09 10:22:23,821 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2024-11-09 10:22:23,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:22:23,837 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;@24b12270, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:22:23,838 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 10:22:23,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:22:23,846 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2024-11-09 10:22:23,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:22:23,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:23,847 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:23,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:23,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:23,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1038261642, now seen corresponding path program 1 times [2024-11-09 10:22:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:23,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267788775] [2024-11-09 10:22:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:23,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:24,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:24,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267788775] [2024-11-09 10:22:24,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267788775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:22:24,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:22:24,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:22:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594833203] [2024-11-09 10:22:24,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:22:24,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:22:24,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:24,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:22:24,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:22:24,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-09 10:22:24,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-11-09 10:22:24,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:24,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-09 10:22:24,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:24,241 INFO L124 PetriNetUnfolderBase]: 70/157 cut-off events. [2024-11-09 10:22:24,241 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:22:24,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 157 events. 70/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 554 event pairs, 44 based on Foata normal form. 15/161 useless extension candidates. Maximal degree in co-relation 272. Up to 113 conditions per place. [2024-11-09 10:22:24,245 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 11 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2024-11-09 10:22:24,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 78 flow [2024-11-09 10:22:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:22:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:22:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-09 10:22:24,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2024-11-09 10:22:24,260 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 52 transitions. [2024-11-09 10:22:24,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 78 flow [2024-11-09 10:22:24,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:22:24,265 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2024-11-09 10:22:24,268 INFO L260 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} [2024-11-09 10:22:24,272 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-11-09 10:22:24,272 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2024-11-09 10:22:24,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-11-09 10:22:24,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:24,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:24,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:22:24,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:24,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:24,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1038262774, now seen corresponding path program 1 times [2024-11-09 10:22:24,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:24,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529081775] [2024-11-09 10:22:24,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:24,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:24,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:24,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:24,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529081775] [2024-11-09 10:22:24,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529081775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:22:24,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:22:24,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:22:24,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813130755] [2024-11-09 10:22:24,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:22:24,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:22:24,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:24,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:22:24,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:22:24,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:24,551 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) [2024-11-09 10:22:24,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:24,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:24,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:24,764 INFO L124 PetriNetUnfolderBase]: 273/487 cut-off events. [2024-11-09 10:22:24,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:22:24,767 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 1990 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. [2024-11-09 10:22:24,771 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 25 selfloop transitions, 4 changer transitions 21/54 dead transitions. [2024-11-09 10:22:24,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 54 transitions, 212 flow [2024-11-09 10:22:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:22:24,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:22:24,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-11-09 10:22:24,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-11-09 10:22:24,773 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 6 states and 99 transitions. [2024-11-09 10:22:24,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 54 transitions, 212 flow [2024-11-09 10:22:24,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 54 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:22:24,776 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 74 flow [2024-11-09 10:22:24,779 INFO L260 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} [2024-11-09 10:22:24,780 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2024-11-09 10:22:24,781 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 74 flow [2024-11-09 10:22:24,781 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) [2024-11-09 10:22:24,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:24,781 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:24,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:22:24,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:24,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1117686194, now seen corresponding path program 1 times [2024-11-09 10:22:24,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:24,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321074468] [2024-11-09 10:22:24,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:24,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:24,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:24,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:24,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321074468] [2024-11-09 10:22:24,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321074468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:22:24,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:22:24,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:22:24,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122018774] [2024-11-09 10:22:24,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:22:24,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:22:24,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:24,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:22:24,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:22:25,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:25,013 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) [2024-11-09 10:22:25,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:25,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:25,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:25,271 INFO L124 PetriNetUnfolderBase]: 382/704 cut-off events. [2024-11-09 10:22:25,272 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-09 10:22:25,277 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 3073 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. [2024-11-09 10:22:25,282 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 9 changer transitions 20/79 dead transitions. [2024-11-09 10:22:25,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 79 transitions, 382 flow [2024-11-09 10:22:25,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:22:25,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:22:25,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2024-11-09 10:22:25,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-11-09 10:22:25,288 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 74 flow. Second operand 9 states and 144 transitions. [2024-11-09 10:22:25,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 79 transitions, 382 flow [2024-11-09 10:22:25,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 79 transitions, 366 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-09 10:22:25,298 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 159 flow [2024-11-09 10:22:25,298 INFO L260 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} [2024-11-09 10:22:25,299 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2024-11-09 10:22:25,300 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 159 flow [2024-11-09 10:22:25,300 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) [2024-11-09 10:22:25,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:25,300 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:25,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:22:25,301 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:25,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:25,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1000674482, now seen corresponding path program 2 times [2024-11-09 10:22:25,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:25,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060493266] [2024-11-09 10:22:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:25,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:25,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:25,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060493266] [2024-11-09 10:22:25,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060493266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:22:25,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:22:25,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:22:25,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391916994] [2024-11-09 10:22:25,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:22:25,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:22:25,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:25,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:22:25,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:22:25,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:25,454 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) [2024-11-09 10:22:25,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:25,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:25,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:25,667 INFO L124 PetriNetUnfolderBase]: 328/611 cut-off events. [2024-11-09 10:22:25,667 INFO L125 PetriNetUnfolderBase]: For 971/971 co-relation queries the response was YES. [2024-11-09 10:22:25,670 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 2595 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. [2024-11-09 10:22:25,673 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 38 selfloop transitions, 9 changer transitions 28/79 dead transitions. [2024-11-09 10:22:25,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 499 flow [2024-11-09 10:22:25,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:22:25,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:22:25,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2024-11-09 10:22:25,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5474137931034483 [2024-11-09 10:22:25,677 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 159 flow. Second operand 8 states and 127 transitions. [2024-11-09 10:22:25,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 499 flow [2024-11-09 10:22:25,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 79 transitions, 491 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-09 10:22:25,684 INFO L231 Difference]: Finished difference. Result has 51 places, 34 transitions, 213 flow [2024-11-09 10:22:25,684 INFO L260 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} [2024-11-09 10:22:25,686 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2024-11-09 10:22:25,686 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 213 flow [2024-11-09 10:22:25,686 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) [2024-11-09 10:22:25,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:25,686 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:25,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:22:25,688 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:25,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:25,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1356857717, now seen corresponding path program 1 times [2024-11-09 10:22:25,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:25,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224462510] [2024-11-09 10:22:25,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:25,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:25,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:25,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224462510] [2024-11-09 10:22:25,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224462510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:22:25,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:22:25,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:22:25,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475709634] [2024-11-09 10:22:25,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:22:25,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:22:25,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:25,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:22:25,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:22:25,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:25,858 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) [2024-11-09 10:22:25,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:25,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:25,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:26,069 INFO L124 PetriNetUnfolderBase]: 355/662 cut-off events. [2024-11-09 10:22:26,069 INFO L125 PetriNetUnfolderBase]: For 1747/1747 co-relation queries the response was YES. [2024-11-09 10:22:26,073 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 2915 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. [2024-11-09 10:22:26,075 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 16 changer transitions 21/84 dead transitions. [2024-11-09 10:22:26,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 600 flow [2024-11-09 10:22:26,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:22:26,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:22:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2024-11-09 10:22:26,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2024-11-09 10:22:26,078 INFO L175 Difference]: Start difference. First operand has 51 places, 34 transitions, 213 flow. Second operand 9 states and 140 transitions. [2024-11-09 10:22:26,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 600 flow [2024-11-09 10:22:26,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 84 transitions, 530 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-11-09 10:22:26,088 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 300 flow [2024-11-09 10:22:26,088 INFO L260 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} [2024-11-09 10:22:26,090 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2024-11-09 10:22:26,091 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 300 flow [2024-11-09 10:22:26,092 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) [2024-11-09 10:22:26,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:26,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:26,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:22:26,092 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:26,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash 392343623, now seen corresponding path program 2 times [2024-11-09 10:22:26,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:26,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105132643] [2024-11-09 10:22:26,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:26,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:26,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:26,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105132643] [2024-11-09 10:22:26,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105132643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:22:26,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:22:26,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:22:26,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584736955] [2024-11-09 10:22:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:22:26,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:22:26,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:26,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:22:26,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:22:26,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:26,224 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) [2024-11-09 10:22:26,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:26,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:26,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:26,461 INFO L124 PetriNetUnfolderBase]: 427/790 cut-off events. [2024-11-09 10:22:26,461 INFO L125 PetriNetUnfolderBase]: For 2386/2386 co-relation queries the response was YES. [2024-11-09 10:22:26,463 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 3511 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. [2024-11-09 10:22:26,466 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 20 changer transitions 28/95 dead transitions. [2024-11-09 10:22:26,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 710 flow [2024-11-09 10:22:26,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:22:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:22:26,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2024-11-09 10:22:26,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2024-11-09 10:22:26,468 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 300 flow. Second operand 10 states and 155 transitions. [2024-11-09 10:22:26,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 710 flow [2024-11-09 10:22:26,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 664 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-11-09 10:22:26,478 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 381 flow [2024-11-09 10:22:26,478 INFO L260 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} [2024-11-09 10:22:26,479 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2024-11-09 10:22:26,479 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 381 flow [2024-11-09 10:22:26,479 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) [2024-11-09 10:22:26,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:26,479 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:26,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:22:26,480 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:26,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:26,480 INFO L85 PathProgramCache]: Analyzing trace with hash 653489688, now seen corresponding path program 1 times [2024-11-09 10:22:26,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:26,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975763088] [2024-11-09 10:22:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:26,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:26,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:26,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975763088] [2024-11-09 10:22:26,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975763088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:26,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265575807] [2024-11-09 10:22:26,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:26,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:26,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:26,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:26,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 10:22:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:26,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 10:22:26,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:26,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:26,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:26,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265575807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:26,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:26,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-09 10:22:26,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628543190] [2024-11-09 10:22:26,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:26,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 10:22:26,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:26,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 10:22:26,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-09 10:22:26,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:26,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 381 flow. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 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) [2024-11-09 10:22:26,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:26,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:26,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:27,443 INFO L124 PetriNetUnfolderBase]: 643/1171 cut-off events. [2024-11-09 10:22:27,443 INFO L125 PetriNetUnfolderBase]: For 6374/6374 co-relation queries the response was YES. [2024-11-09 10:22:27,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4378 conditions, 1171 events. 643/1171 cut-off events. For 6374/6374 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5098 event pairs, 59 based on Foata normal form. 45/1210 useless extension candidates. Maximal degree in co-relation 4349. Up to 171 conditions per place. [2024-11-09 10:22:27,451 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 65 selfloop transitions, 35 changer transitions 56/160 dead transitions. [2024-11-09 10:22:27,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 160 transitions, 1361 flow [2024-11-09 10:22:27,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 10:22:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 10:22:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 293 transitions. [2024-11-09 10:22:27,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5317604355716878 [2024-11-09 10:22:27,453 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 381 flow. Second operand 19 states and 293 transitions. [2024-11-09 10:22:27,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 160 transitions, 1361 flow [2024-11-09 10:22:27,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 160 transitions, 1300 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-11-09 10:22:27,465 INFO L231 Difference]: Finished difference. Result has 84 places, 62 transitions, 705 flow [2024-11-09 10:22:27,465 INFO L260 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=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=705, PETRI_PLACES=84, PETRI_TRANSITIONS=62} [2024-11-09 10:22:27,466 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 54 predicate places. [2024-11-09 10:22:27,466 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 62 transitions, 705 flow [2024-11-09 10:22:27,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 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) [2024-11-09 10:22:27,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:27,467 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:27,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 10:22:27,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:27,668 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:27,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:27,669 INFO L85 PathProgramCache]: Analyzing trace with hash 254201038, now seen corresponding path program 1 times [2024-11-09 10:22:27,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:27,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324881759] [2024-11-09 10:22:27,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:27,836 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:27,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:27,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324881759] [2024-11-09 10:22:27,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324881759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:27,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541457140] [2024-11-09 10:22:27,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:27,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:27,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:27,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:27,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 10:22:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:27,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 10:22:27,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:28,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:28,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541457140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:28,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:28,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-09 10:22:28,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958998273] [2024-11-09 10:22:28,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:28,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 10:22:28,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:28,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 10:22:28,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-09 10:22:28,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:28,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 62 transitions, 705 flow. Second operand has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 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) [2024-11-09 10:22:28,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:28,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:28,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:28,977 INFO L124 PetriNetUnfolderBase]: 841/1583 cut-off events. [2024-11-09 10:22:28,977 INFO L125 PetriNetUnfolderBase]: For 16610/16610 co-relation queries the response was YES. [2024-11-09 10:22:28,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6946 conditions, 1583 events. 841/1583 cut-off events. For 16610/16610 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 7026 event pairs, 203 based on Foata normal form. 81/1660 useless extension candidates. Maximal degree in co-relation 6909. Up to 720 conditions per place. [2024-11-09 10:22:28,993 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 92 selfloop transitions, 27 changer transitions 89/212 dead transitions. [2024-11-09 10:22:28,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 212 transitions, 2279 flow [2024-11-09 10:22:28,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 10:22:28,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-09 10:22:28,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 376 transitions. [2024-11-09 10:22:28,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5186206896551724 [2024-11-09 10:22:28,996 INFO L175 Difference]: Start difference. First operand has 84 places, 62 transitions, 705 flow. Second operand 25 states and 376 transitions. [2024-11-09 10:22:28,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 212 transitions, 2279 flow [2024-11-09 10:22:29,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 212 transitions, 1791 flow, removed 229 selfloop flow, removed 10 redundant places. [2024-11-09 10:22:29,027 INFO L231 Difference]: Finished difference. Result has 112 places, 76 transitions, 784 flow [2024-11-09 10:22:29,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=784, PETRI_PLACES=112, PETRI_TRANSITIONS=76} [2024-11-09 10:22:29,028 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places. [2024-11-09 10:22:29,029 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 76 transitions, 784 flow [2024-11-09 10:22:29,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 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) [2024-11-09 10:22:29,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:29,029 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:29,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 10:22:29,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 10:22:29,234 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:29,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1512318702, now seen corresponding path program 2 times [2024-11-09 10:22:29,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:29,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753463914] [2024-11-09 10:22:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:29,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:29,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:29,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753463914] [2024-11-09 10:22:29,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753463914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:29,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618038158] [2024-11-09 10:22:29,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 10:22:29,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:29,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:29,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:29,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 10:22:29,462 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 10:22:29,463 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:22:29,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 10:22:29,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:29,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:29,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618038158] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:29,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:29,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-09 10:22:29,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226973781] [2024-11-09 10:22:29,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:29,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 10:22:29,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:29,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 10:22:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-09 10:22:29,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:29,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 76 transitions, 784 flow. Second operand has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 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) [2024-11-09 10:22:29,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:29,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:29,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:30,689 INFO L124 PetriNetUnfolderBase]: 1453/2768 cut-off events. [2024-11-09 10:22:30,690 INFO L125 PetriNetUnfolderBase]: For 57987/57987 co-relation queries the response was YES. [2024-11-09 10:22:30,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14031 conditions, 2768 events. 1453/2768 cut-off events. For 57987/57987 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 15031 event pairs, 138 based on Foata normal form. 81/2845 useless extension candidates. Maximal degree in co-relation 13980. Up to 484 conditions per place. [2024-11-09 10:22:30,806 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 127 selfloop transitions, 82 changer transitions 91/304 dead transitions. [2024-11-09 10:22:30,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 304 transitions, 3738 flow [2024-11-09 10:22:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 10:22:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-09 10:22:30,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 489 transitions. [2024-11-09 10:22:30,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5269396551724138 [2024-11-09 10:22:30,809 INFO L175 Difference]: Start difference. First operand has 112 places, 76 transitions, 784 flow. Second operand 32 states and 489 transitions. [2024-11-09 10:22:30,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 304 transitions, 3738 flow [2024-11-09 10:22:30,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 304 transitions, 3141 flow, removed 289 selfloop flow, removed 13 redundant places. [2024-11-09 10:22:30,872 INFO L231 Difference]: Finished difference. Result has 144 places, 122 transitions, 1575 flow [2024-11-09 10:22:30,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1575, PETRI_PLACES=144, PETRI_TRANSITIONS=122} [2024-11-09 10:22:30,873 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 114 predicate places. [2024-11-09 10:22:30,874 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 122 transitions, 1575 flow [2024-11-09 10:22:30,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 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) [2024-11-09 10:22:30,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:30,874 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:30,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 10:22:31,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:31,076 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:31,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:31,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1976850896, now seen corresponding path program 3 times [2024-11-09 10:22:31,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:31,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562869081] [2024-11-09 10:22:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:31,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:31,225 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:31,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:31,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562869081] [2024-11-09 10:22:31,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562869081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:31,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243258876] [2024-11-09 10:22:31,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 10:22:31,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:31,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:31,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:31,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 10:22:31,286 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 10:22:31,286 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:22:31,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 10:22:31,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:31,361 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:31,361 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:31,467 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:31,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243258876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:31,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:31,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-09 10:22:31,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420815491] [2024-11-09 10:22:31,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:31,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 10:22:31,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:31,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 10:22:31,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-09 10:22:31,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:31,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 122 transitions, 1575 flow. Second operand has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 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) [2024-11-09 10:22:31,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:31,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:31,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:32,958 INFO L124 PetriNetUnfolderBase]: 2047/3859 cut-off events. [2024-11-09 10:22:32,958 INFO L125 PetriNetUnfolderBase]: For 146492/146492 co-relation queries the response was YES. [2024-11-09 10:22:32,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22735 conditions, 3859 events. 2047/3859 cut-off events. For 146492/146492 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 22561 event pairs, 96 based on Foata normal form. 117/3972 useless extension candidates. Maximal degree in co-relation 22669. Up to 561 conditions per place. [2024-11-09 10:22:33,008 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 131 selfloop transitions, 129 changer transitions 113/377 dead transitions. [2024-11-09 10:22:33,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 377 transitions, 5732 flow [2024-11-09 10:22:33,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 10:22:33,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-09 10:22:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 535 transitions. [2024-11-09 10:22:33,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5270935960591133 [2024-11-09 10:22:33,011 INFO L175 Difference]: Start difference. First operand has 144 places, 122 transitions, 1575 flow. Second operand 35 states and 535 transitions. [2024-11-09 10:22:33,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 377 transitions, 5732 flow [2024-11-09 10:22:33,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 377 transitions, 4879 flow, removed 410 selfloop flow, removed 15 redundant places. [2024-11-09 10:22:33,283 INFO L231 Difference]: Finished difference. Result has 176 places, 169 transitions, 2497 flow [2024-11-09 10:22:33,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1250, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=2497, PETRI_PLACES=176, PETRI_TRANSITIONS=169} [2024-11-09 10:22:33,285 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 146 predicate places. [2024-11-09 10:22:33,285 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 169 transitions, 2497 flow [2024-11-09 10:22:33,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.352941176470589) internal successors, (176), 17 states have internal predecessors, (176), 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) [2024-11-09 10:22:33,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:33,285 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:33,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 10:22:33,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:33,492 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:33,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:33,493 INFO L85 PathProgramCache]: Analyzing trace with hash -690914415, now seen corresponding path program 4 times [2024-11-09 10:22:33,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:33,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338631905] [2024-11-09 10:22:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:33,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:33,751 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:33,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:33,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338631905] [2024-11-09 10:22:33,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338631905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:33,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664877874] [2024-11-09 10:22:33,753 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 10:22:33,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:33,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:33,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:33,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 10:22:33,815 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 10:22:33,816 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:22:33,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 10:22:33,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:33,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:34,113 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:22:34,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664877874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:34,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:34,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-11-09 10:22:34,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900290848] [2024-11-09 10:22:34,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:34,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 10:22:34,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:34,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 10:22:34,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-11-09 10:22:34,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:34,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 169 transitions, 2497 flow. Second operand has 26 states, 26 states have (on average 10.038461538461538) internal successors, (261), 26 states have internal predecessors, (261), 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) [2024-11-09 10:22:34,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:34,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:34,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:36,627 INFO L124 PetriNetUnfolderBase]: 3406/6272 cut-off events. [2024-11-09 10:22:36,627 INFO L125 PetriNetUnfolderBase]: For 377552/377552 co-relation queries the response was YES. [2024-11-09 10:22:36,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45216 conditions, 6272 events. 3406/6272 cut-off events. For 377552/377552 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 36125 event pairs, 89 based on Foata normal form. 117/6383 useless extension candidates. Maximal degree in co-relation 45139. Up to 1008 conditions per place. [2024-11-09 10:22:36,689 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 170 selfloop transitions, 223 changer transitions 160/557 dead transitions. [2024-11-09 10:22:36,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 557 transitions, 11321 flow [2024-11-09 10:22:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 10:22:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-11-09 10:22:36,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 781 transitions. [2024-11-09 10:22:36,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5280594996619338 [2024-11-09 10:22:36,693 INFO L175 Difference]: Start difference. First operand has 176 places, 169 transitions, 2497 flow. Second operand 51 states and 781 transitions. [2024-11-09 10:22:36,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 557 transitions, 11321 flow [2024-11-09 10:22:37,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 557 transitions, 9120 flow, removed 1070 selfloop flow, removed 19 redundant places. [2024-11-09 10:22:37,363 INFO L231 Difference]: Finished difference. Result has 230 places, 279 transitions, 5255 flow [2024-11-09 10:22:37,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1976, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=5255, PETRI_PLACES=230, PETRI_TRANSITIONS=279} [2024-11-09 10:22:37,364 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 200 predicate places. [2024-11-09 10:22:37,365 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 279 transitions, 5255 flow [2024-11-09 10:22:37,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.038461538461538) internal successors, (261), 26 states have internal predecessors, (261), 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) [2024-11-09 10:22:37,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:37,365 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:37,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 10:22:37,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 10:22:37,570 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:37,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:37,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1714219090, now seen corresponding path program 5 times [2024-11-09 10:22:37,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:37,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125993472] [2024-11-09 10:22:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:37,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:37,990 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:37,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:37,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125993472] [2024-11-09 10:22:37,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125993472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:37,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549705442] [2024-11-09 10:22:37,991 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 10:22:37,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:37,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:37,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:37,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 10:22:38,055 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-09 10:22:38,055 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:22:38,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 10:22:38,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:38,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:38,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549705442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:38,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:38,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 28 [2024-11-09 10:22:38,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871012856] [2024-11-09 10:22:38,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:38,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 10:22:38,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:38,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 10:22:38,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2024-11-09 10:22:38,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:38,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 279 transitions, 5255 flow. Second operand has 29 states, 29 states have (on average 10.310344827586206) internal successors, (299), 29 states have internal predecessors, (299), 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) [2024-11-09 10:22:38,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:38,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:38,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:40,684 INFO L124 PetriNetUnfolderBase]: 3496/6614 cut-off events. [2024-11-09 10:22:40,684 INFO L125 PetriNetUnfolderBase]: For 529752/529752 co-relation queries the response was YES. [2024-11-09 10:22:40,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49094 conditions, 6614 events. 3496/6614 cut-off events. For 529752/529752 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 39484 event pairs, 1349 based on Foata normal form. 81/6691 useless extension candidates. Maximal degree in co-relation 48993. Up to 4788 conditions per place. [2024-11-09 10:22:40,747 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 332 selfloop transitions, 49 changer transitions 113/498 dead transitions. [2024-11-09 10:22:40,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 498 transitions, 11033 flow [2024-11-09 10:22:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-09 10:22:40,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-11-09 10:22:40,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 544 transitions. [2024-11-09 10:22:40,750 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5069897483690587 [2024-11-09 10:22:40,750 INFO L175 Difference]: Start difference. First operand has 230 places, 279 transitions, 5255 flow. Second operand 37 states and 544 transitions. [2024-11-09 10:22:40,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 498 transitions, 11033 flow [2024-11-09 10:22:41,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 498 transitions, 7431 flow, removed 1776 selfloop flow, removed 19 redundant places. [2024-11-09 10:22:41,775 INFO L231 Difference]: Finished difference. Result has 253 places, 297 transitions, 4066 flow [2024-11-09 10:22:41,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3425, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=4066, PETRI_PLACES=253, PETRI_TRANSITIONS=297} [2024-11-09 10:22:41,776 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 223 predicate places. [2024-11-09 10:22:41,776 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 297 transitions, 4066 flow [2024-11-09 10:22:41,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.310344827586206) internal successors, (299), 29 states have internal predecessors, (299), 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) [2024-11-09 10:22:41,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:41,776 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:41,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 10:22:41,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:41,977 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:41,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:41,978 INFO L85 PathProgramCache]: Analyzing trace with hash 22762492, now seen corresponding path program 6 times [2024-11-09 10:22:41,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:41,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313247929] [2024-11-09 10:22:41,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:41,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:42,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:42,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313247929] [2024-11-09 10:22:42,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313247929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:42,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944208630] [2024-11-09 10:22:42,386 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 10:22:42,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:42,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:42,388 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:42,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 10:22:42,461 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-09 10:22:42,461 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:22:42,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 10:22:42,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:42,662 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:42,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:22:43,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944208630] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:43,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:43,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 30 [2024-11-09 10:22:43,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290873989] [2024-11-09 10:22:43,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:43,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 10:22:43,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:43,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 10:22:43,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2024-11-09 10:22:43,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:43,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 297 transitions, 4066 flow. Second operand has 31 states, 31 states have (on average 10.290322580645162) internal successors, (319), 31 states have internal predecessors, (319), 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) [2024-11-09 10:22:43,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:43,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:43,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:45,378 INFO L124 PetriNetUnfolderBase]: 4018/7805 cut-off events. [2024-11-09 10:22:45,378 INFO L125 PetriNetUnfolderBase]: For 474448/474448 co-relation queries the response was YES. [2024-11-09 10:22:45,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47911 conditions, 7805 events. 4018/7805 cut-off events. For 474448/474448 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 48694 event pairs, 870 based on Foata normal form. 81/7882 useless extension candidates. Maximal degree in co-relation 47803. Up to 3568 conditions per place. [2024-11-09 10:22:45,517 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 316 selfloop transitions, 170 changer transitions 127/617 dead transitions. [2024-11-09 10:22:45,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 617 transitions, 10034 flow [2024-11-09 10:22:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 10:22:45,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-09 10:22:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 651 transitions. [2024-11-09 10:22:45,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5101880877742947 [2024-11-09 10:22:45,526 INFO L175 Difference]: Start difference. First operand has 253 places, 297 transitions, 4066 flow. Second operand 44 states and 651 transitions. [2024-11-09 10:22:45,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 617 transitions, 10034 flow [2024-11-09 10:22:46,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 617 transitions, 9259 flow, removed 360 selfloop flow, removed 23 redundant places. [2024-11-09 10:22:46,503 INFO L231 Difference]: Finished difference. Result has 285 places, 354 transitions, 5237 flow [2024-11-09 10:22:46,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3643, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=5237, PETRI_PLACES=285, PETRI_TRANSITIONS=354} [2024-11-09 10:22:46,504 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 255 predicate places. [2024-11-09 10:22:46,504 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 354 transitions, 5237 flow [2024-11-09 10:22:46,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.290322580645162) internal successors, (319), 31 states have internal predecessors, (319), 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) [2024-11-09 10:22:46,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:46,505 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:46,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 10:22:46,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:46,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:46,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:46,707 INFO L85 PathProgramCache]: Analyzing trace with hash 249518812, now seen corresponding path program 7 times [2024-11-09 10:22:46,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:46,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041253210] [2024-11-09 10:22:46,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:46,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:47,184 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:47,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:47,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041253210] [2024-11-09 10:22:47,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041253210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:47,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90026412] [2024-11-09 10:22:47,185 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 10:22:47,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:47,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:47,187 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:47,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 10:22:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:47,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 10:22:47,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:47,400 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:47,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:47,819 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:47,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90026412] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:47,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:47,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 34 [2024-11-09 10:22:47,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308605441] [2024-11-09 10:22:47,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:47,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 10:22:47,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:47,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 10:22:47,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 10:22:47,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:47,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 354 transitions, 5237 flow. Second operand has 35 states, 35 states have (on average 10.285714285714286) internal successors, (360), 35 states have internal predecessors, (360), 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) [2024-11-09 10:22:47,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:47,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:47,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:50,905 INFO L124 PetriNetUnfolderBase]: 4729/9227 cut-off events. [2024-11-09 10:22:50,905 INFO L125 PetriNetUnfolderBase]: For 703460/703460 co-relation queries the response was YES. [2024-11-09 10:22:50,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61107 conditions, 9227 events. 4729/9227 cut-off events. For 703460/703460 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 58619 event pairs, 186 based on Foata normal form. 81/9304 useless extension candidates. Maximal degree in co-relation 60986. Up to 1266 conditions per place. [2024-11-09 10:22:51,008 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 222 selfloop transitions, 349 changer transitions 139/714 dead transitions. [2024-11-09 10:22:51,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 714 transitions, 12839 flow [2024-11-09 10:22:51,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 10:22:51,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2024-11-09 10:22:51,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 749 transitions. [2024-11-09 10:22:51,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.516551724137931 [2024-11-09 10:22:51,011 INFO L175 Difference]: Start difference. First operand has 285 places, 354 transitions, 5237 flow. Second operand 50 states and 749 transitions. [2024-11-09 10:22:51,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 714 transitions, 12839 flow [2024-11-09 10:22:52,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 714 transitions, 11485 flow, removed 589 selfloop flow, removed 30 redundant places. [2024-11-09 10:22:52,407 INFO L231 Difference]: Finished difference. Result has 319 places, 424 transitions, 7004 flow [2024-11-09 10:22:52,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4563, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=289, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=7004, PETRI_PLACES=319, PETRI_TRANSITIONS=424} [2024-11-09 10:22:52,408 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 289 predicate places. [2024-11-09 10:22:52,408 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 424 transitions, 7004 flow [2024-11-09 10:22:52,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.285714285714286) internal successors, (360), 35 states have internal predecessors, (360), 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) [2024-11-09 10:22:52,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:52,409 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:52,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 10:22:52,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 10:22:52,609 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:52,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1096510394, now seen corresponding path program 8 times [2024-11-09 10:22:52,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:52,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925249893] [2024-11-09 10:22:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:52,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:22:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:53,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:22:53,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925249893] [2024-11-09 10:22:53,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925249893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:22:53,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608273226] [2024-11-09 10:22:53,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 10:22:53,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:22:53,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:22:53,019 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:22:53,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 10:22:53,090 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 10:22:53,090 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:22:53,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 10:22:53,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:22:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:53,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:22:53,493 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:22:53,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608273226] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:22:53,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:22:53,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 33 [2024-11-09 10:22:53,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015747226] [2024-11-09 10:22:53,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:22:53,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 10:22:53,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:22:53,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 10:22:53,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=930, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 10:22:53,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:22:53,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 424 transitions, 7004 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) [2024-11-09 10:22:53,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:22:53,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:22:53,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:22:57,651 INFO L124 PetriNetUnfolderBase]: 5980/11511 cut-off events. [2024-11-09 10:22:57,651 INFO L125 PetriNetUnfolderBase]: For 1143538/1143538 co-relation queries the response was YES. [2024-11-09 10:22:57,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84248 conditions, 11511 events. 5980/11511 cut-off events. For 1143538/1143538 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 74482 event pairs, 96 based on Foata normal form. 81/11588 useless extension candidates. Maximal degree in co-relation 84111. Up to 1620 conditions per place. [2024-11-09 10:22:57,766 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 262 selfloop transitions, 444 changer transitions 137/847 dead transitions. [2024-11-09 10:22:57,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 847 transitions, 16361 flow [2024-11-09 10:22:57,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-09 10:22:57,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2024-11-09 10:22:57,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 869 transitions. [2024-11-09 10:22:57,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5257108287961283 [2024-11-09 10:22:57,769 INFO L175 Difference]: Start difference. First operand has 319 places, 424 transitions, 7004 flow. Second operand 57 states and 869 transitions. [2024-11-09 10:22:57,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 847 transitions, 16361 flow [2024-11-09 10:22:59,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 847 transitions, 14146 flow, removed 1055 selfloop flow, removed 22 redundant places. [2024-11-09 10:22:59,743 INFO L231 Difference]: Finished difference. Result has 369 places, 504 transitions, 8949 flow [2024-11-09 10:22:59,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=6065, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=8949, PETRI_PLACES=369, PETRI_TRANSITIONS=504} [2024-11-09 10:22:59,744 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 339 predicate places. [2024-11-09 10:22:59,744 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 504 transitions, 8949 flow [2024-11-09 10:22:59,745 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) [2024-11-09 10:22:59,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:22:59,745 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:22:59,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 10:22:59,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 10:22:59,946 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:22:59,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:22:59,946 INFO L85 PathProgramCache]: Analyzing trace with hash 566196863, now seen corresponding path program 9 times [2024-11-09 10:22:59,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:22:59,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220010679] [2024-11-09 10:22:59,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:22:59,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:22:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:23:00,380 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:23:00,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:23:00,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220010679] [2024-11-09 10:23:00,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220010679] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:23:00,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325030707] [2024-11-09 10:23:00,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 10:23:00,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:23:00,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:23:00,383 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:23:00,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 10:23:00,453 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 10:23:00,453 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:23:00,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 10:23:00,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:23:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:23:00,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:23:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 10:23:00,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325030707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:23:00,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:23:00,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 28 [2024-11-09 10:23:00,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413496998] [2024-11-09 10:23:00,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:23:00,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 10:23:00,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:23:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 10:23:00,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=672, Unknown=0, NotChecked=0, Total=812 [2024-11-09 10:23:00,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:23:00,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 504 transitions, 8949 flow. Second operand has 29 states, 29 states have (on average 10.344827586206897) internal successors, (300), 29 states have internal predecessors, (300), 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) [2024-11-09 10:23:00,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:23:00,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:23:00,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:23:04,819 INFO L124 PetriNetUnfolderBase]: 6205/12022 cut-off events. [2024-11-09 10:23:04,819 INFO L125 PetriNetUnfolderBase]: For 1358213/1358213 co-relation queries the response was YES. [2024-11-09 10:23:04,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92381 conditions, 12022 events. 6205/12022 cut-off events. For 1358213/1358213 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 78675 event pairs, 258 based on Foata normal form. 54/12072 useless extension candidates. Maximal degree in co-relation 92228. Up to 1734 conditions per place. [2024-11-09 10:23:04,948 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 219 selfloop transitions, 455 changer transitions 124/802 dead transitions. [2024-11-09 10:23:04,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 802 transitions, 16439 flow [2024-11-09 10:23:04,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 10:23:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-11-09 10:23:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 771 transitions. [2024-11-09 10:23:04,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5212981744421906 [2024-11-09 10:23:04,951 INFO L175 Difference]: Start difference. First operand has 369 places, 504 transitions, 8949 flow. Second operand 51 states and 771 transitions. [2024-11-09 10:23:04,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 802 transitions, 16439 flow [2024-11-09 10:23:08,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 802 transitions, 14275 flow, removed 830 selfloop flow, removed 37 redundant places. [2024-11-09 10:23:08,163 INFO L231 Difference]: Finished difference. Result has 386 places, 530 transitions, 9468 flow [2024-11-09 10:23:08,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7477, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=9468, PETRI_PLACES=386, PETRI_TRANSITIONS=530} [2024-11-09 10:23:08,164 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 356 predicate places. [2024-11-09 10:23:08,164 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 530 transitions, 9468 flow [2024-11-09 10:23:08,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.344827586206897) internal successors, (300), 29 states have internal predecessors, (300), 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) [2024-11-09 10:23:08,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:23:08,164 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:23:08,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 10:23:08,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 10:23:08,365 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:23:08,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:23:08,366 INFO L85 PathProgramCache]: Analyzing trace with hash -45509489, now seen corresponding path program 10 times [2024-11-09 10:23:08,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:23:08,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528612525] [2024-11-09 10:23:08,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:23:08,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:23:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:23:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:23:08,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:23:08,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528612525] [2024-11-09 10:23:08,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528612525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:23:08,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120181049] [2024-11-09 10:23:08,695 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 10:23:08,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:23:08,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:23:08,696 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:23:08,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 10:23:08,750 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 10:23:08,751 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:23:08,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 10:23:08,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:23:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:23:08,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:23:09,088 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:23:09,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120181049] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:23:09,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 10:23:09,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 30 [2024-11-09 10:23:09,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022619518] [2024-11-09 10:23:09,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 10:23:09,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 10:23:09,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:23:09,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 10:23:09,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2024-11-09 10:23:09,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-11-09 10:23:09,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 530 transitions, 9468 flow. Second operand has 31 states, 31 states have (on average 10.129032258064516) internal successors, (314), 31 states have internal predecessors, (314), 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) [2024-11-09 10:23:09,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:23:09,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-11-09 10:23:09,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:23:13,266 INFO L124 PetriNetUnfolderBase]: 6268/12108 cut-off events. [2024-11-09 10:23:13,266 INFO L125 PetriNetUnfolderBase]: For 1492952/1492952 co-relation queries the response was YES. [2024-11-09 10:23:13,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94903 conditions, 12108 events. 6268/12108 cut-off events. For 1492952/1492952 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 79017 event pairs, 58 based on Foata normal form. 117/12221 useless extension candidates. Maximal degree in co-relation 94747. Up to 1758 conditions per place. [2024-11-09 10:23:13,416 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 248 selfloop transitions, 488 changer transitions 151/891 dead transitions. [2024-11-09 10:23:13,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 891 transitions, 18278 flow [2024-11-09 10:23:13,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-09 10:23:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2024-11-09 10:23:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 879 transitions. [2024-11-09 10:23:13,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5225921521997622 [2024-11-09 10:23:13,418 INFO L175 Difference]: Start difference. First operand has 386 places, 530 transitions, 9468 flow. Second operand 58 states and 879 transitions. [2024-11-09 10:23:13,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 891 transitions, 18278 flow [2024-11-09 10:23:16,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 891 transitions, 16884 flow, removed 528 selfloop flow, removed 25 redundant places. [2024-11-09 10:23:16,975 INFO L231 Difference]: Finished difference. Result has 429 places, 543 transitions, 10503 flow [2024-11-09 10:23:16,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=8466, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=476, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=10503, PETRI_PLACES=429, PETRI_TRANSITIONS=543} [2024-11-09 10:23:16,976 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 399 predicate places. [2024-11-09 10:23:16,977 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 543 transitions, 10503 flow [2024-11-09 10:23:16,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.129032258064516) internal successors, (314), 31 states have internal predecessors, (314), 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) [2024-11-09 10:23:16,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:23:16,977 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:23:16,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 10:23:17,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 10:23:17,178 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 10:23:17,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:23:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash 253146827, now seen corresponding path program 11 times [2024-11-09 10:23:17,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:23:17,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549876166] [2024-11-09 10:23:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:23:17,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:23:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:23:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 244 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:23:17,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:23:17,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549876166] [2024-11-09 10:23:17,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549876166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:23:17,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707656546] [2024-11-09 10:23:17,358 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 10:23:17,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 10:23:17,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:23:17,360 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 10:23:17,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 10:23:17,433 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-11-09 10:23:17,433 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:23:17,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 10:23:17,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:23:17,500 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 10:23:17,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:23:17,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707656546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:23:17,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 10:23:17,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2024-11-09 10:23:17,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685485701] [2024-11-09 10:23:17,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:23:17,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 10:23:17,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:23:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 10:23:17,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:23:17,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-09 10:23:17,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 543 transitions, 10503 flow. Second operand has 13 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 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) [2024-11-09 10:23:17,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:23:17,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-09 10:23:17,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:23:30,121 INFO L124 PetriNetUnfolderBase]: 21262/41425 cut-off events. [2024-11-09 10:23:30,121 INFO L125 PetriNetUnfolderBase]: For 4707455/4709719 co-relation queries the response was YES. [2024-11-09 10:23:31,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274655 conditions, 41425 events. 21262/41425 cut-off events. For 4707455/4709719 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 379282 event pairs, 986 based on Foata normal form. 815/37504 useless extension candidates. Maximal degree in co-relation 274492. Up to 6704 conditions per place. [2024-11-09 10:23:31,370 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 0 selfloop transitions, 0 changer transitions 602/602 dead transitions. [2024-11-09 10:23:31,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 602 transitions, 9608 flow [2024-11-09 10:23:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 10:23:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 10:23:31,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 263 transitions. [2024-11-09 10:23:31,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6976127320954907 [2024-11-09 10:23:31,372 INFO L175 Difference]: Start difference. First operand has 429 places, 543 transitions, 10503 flow. Second operand 13 states and 263 transitions. [2024-11-09 10:23:31,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 602 transitions, 9608 flow [2024-11-09 10:23:35,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 602 transitions, 8016 flow, removed 184 selfloop flow, removed 73 redundant places. [2024-11-09 10:23:35,455 INFO L231 Difference]: Finished difference. Result has 351 places, 0 transitions, 0 flow [2024-11-09 10:23:35,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=7594, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=351, PETRI_TRANSITIONS=0} [2024-11-09 10:23:35,456 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 321 predicate places. [2024-11-09 10:23:35,456 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 0 transitions, 0 flow [2024-11-09 10:23:35,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 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) [2024-11-09 10:23:35,458 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-09 10:23:35,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-09 10:23:35,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 10:23:35,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-09 10:23:35,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 10:23:35,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 10:23:35,660 INFO L407 BasicCegarLoop]: Path program histogram: [11, 2, 2, 1, 1, 1] [2024-11-09 10:23:35,664 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 10:23:35,664 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 10:23:35,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:23:35 BasicIcfg [2024-11-09 10:23:35,670 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 10:23:35,671 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 10:23:35,671 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 10:23:35,671 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 10:23:35,671 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:22:23" (3/4) ... [2024-11-09 10:23:35,674 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 10:23:35,677 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-11-09 10:23:35,677 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-11-09 10:23:35,681 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-09 10:23:35,682 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 10:23:35,682 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 10:23:35,683 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 10:23:35,770 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 10:23:35,771 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 10:23:35,771 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 10:23:35,771 INFO L158 Benchmark]: Toolchain (without parser) took 73315.60ms. Allocated memory was 155.2MB in the beginning and 12.8GB in the end (delta: 12.6GB). Free memory was 122.2MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2024-11-09 10:23:35,771 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:23:35,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.88ms. Allocated memory is still 155.2MB. Free memory was 122.2MB in the beginning and 100.3MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 10:23:35,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.52ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 98.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:23:35,772 INFO L158 Benchmark]: Boogie Preprocessor took 59.99ms. Allocated memory is still 155.2MB. Free memory was 98.3MB in the beginning and 96.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:23:35,773 INFO L158 Benchmark]: RCFGBuilder took 487.50ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 77.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 10:23:35,774 INFO L158 Benchmark]: TraceAbstraction took 72071.35ms. Allocated memory was 155.2MB in the beginning and 12.8GB in the end (delta: 12.6GB). Free memory was 76.7MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. [2024-11-09 10:23:35,775 INFO L158 Benchmark]: Witness Printer took 100.27ms. Allocated memory is still 12.8GB. Free memory was 9.7GB in the beginning and 9.7GB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 10:23:35,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.88ms. Allocated memory is still 155.2MB. Free memory was 122.2MB in the beginning and 100.3MB in the end (delta: 21.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.52ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 98.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.99ms. Allocated memory is still 155.2MB. Free memory was 98.3MB in the beginning and 96.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.50ms. Allocated memory is still 155.2MB. Free memory was 96.2MB in the beginning and 77.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 72071.35ms. Allocated memory was 155.2MB in the beginning and 12.8GB in the end (delta: 12.6GB). Free memory was 76.7MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. * Witness Printer took 100.27ms. Allocated memory is still 12.8GB. Free memory was 9.7GB in the beginning and 9.7GB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. 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: 71.9s, OverallIterations: 18, TraceHistogramMax: 11, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 59.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6244 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6217 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 376 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7312 IncrementalHoareTripleChecker+Invalid, 7688 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 376 mSolverCounterUnsat, 9 mSDtfsCounter, 7312 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1744 GetRequests, 999 SyntacticMatches, 36 SemanticMatches, 709 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12291 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10503occurred in iteration=17, InterpolantAutomatonStates: 517, 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, 8.3s InterpolantComputationTime, 1284 NumberOfCodeBlocks, 1284 NumberOfCodeBlocksAsserted, 82 NumberOfCheckSat, 1773 ConstructedInterpolants, 0 QuantifiedInterpolants, 7663 SizeOfPredicates, 143 NumberOfNonLiveVariables, 1717 ConjunctsInSsa, 210 ConjunctsInUnsatCore, 41 InterpolantComputations, 7 PerfectInterpolantSequences, 568/4636 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 10:23:35,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE