./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-wip.fs.cvc5-61a6796-m [2024-10-14 19:23:39,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:23:39,912 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:23:39,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:23:39,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:23:39,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:23:39,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:23:39,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:23:39,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:23:39,931 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:23:39,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:23:39,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:23:39,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:23:39,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:23:39,933 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:23:39,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:23:39,934 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:23:39,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:23:39,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:23:39,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:23:39,935 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:23:39,935 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:23:39,936 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:23:39,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:23:39,936 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:23:39,937 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:23:39,937 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:23:39,937 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:23:39,937 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:23:39,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:23:39,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:23:39,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:23:39,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:23:39,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:23:39,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:23:39,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:23:39,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:23:39,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:23:39,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:23:39,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:23:39,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:23:39,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:23:39,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2024-10-14 19:23:40,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:23:40,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:23:40,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:23:40,116 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:23:40,117 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:23:40,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2024-10-14 19:23:41,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:23:41,724 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:23:41,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2024-10-14 19:23:41,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fcbc3d5/19f08641bc9a49799b8ad83041b62986/FLAG9567f72a2 [2024-10-14 19:23:42,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fcbc3d5/19f08641bc9a49799b8ad83041b62986 [2024-10-14 19:23:42,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:23:42,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:23:42,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:23:42,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:23:42,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:23:42,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7d59e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42, skipping insertion in model container [2024-10-14 19:23:42,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,159 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:23:42,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:23:42,462 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:23:42,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:23:42,531 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:23:42,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42 WrapperNode [2024-10-14 19:23:42,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:23:42,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:23:42,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:23:42,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:23:42,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,574 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-10-14 19:23:42,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:23:42,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:23:42,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:23:42,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:23:42,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,587 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,604 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]. [2024-10-14 19:23:42,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:23:42,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:23:42,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:23:42,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:23:42,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (1/1) ... [2024-10-14 19:23:42,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:23:42,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:23:42,662 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) [2024-10-14 19:23:42,669 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 [2024-10-14 19:23:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-14 19:23:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-14 19:23:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-14 19:23:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-14 19:23:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:23:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:23:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:23:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:23:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:23:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:23:42,717 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:23:42,831 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:23:42,833 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:23:42,966 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:23:42,966 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:23:43,146 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:23:43,147 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 19:23:43,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:23:43 BoogieIcfgContainer [2024-10-14 19:23:43,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:23:43,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:23:43,151 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:23:43,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:23:43,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:23:42" (1/3) ... [2024-10-14 19:23:43,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97eb033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:23:43, skipping insertion in model container [2024-10-14 19:23:43,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:23:42" (2/3) ... [2024-10-14 19:23:43,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97eb033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:23:43, skipping insertion in model container [2024-10-14 19:23:43,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:23:43" (3/3) ... [2024-10-14 19:23:43,158 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2024-10-14 19:23:43,174 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:23:43,174 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:23:43,174 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:23:43,213 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:23:43,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2024-10-14 19:23:43,270 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2024-10-14 19:23:43,270 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:23:43,273 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. [2024-10-14 19:23:43,274 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2024-10-14 19:23:43,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2024-10-14 19:23:43,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:23:43,296 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;@79ad9dd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:23:43,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 19:23:43,306 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:23:43,306 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2024-10-14 19:23:43,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:23:43,306 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:43,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:43,307 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)] === [2024-10-14 19:23:43,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:43,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1038261642, now seen corresponding path program 1 times [2024-10-14 19:23:43,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:43,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534129407] [2024-10-14 19:23:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:43,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:43,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534129407] [2024-10-14 19:23:43,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534129407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:23:43,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:23:43,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:23:43,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563619062] [2024-10-14 19:23:43,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:23:43,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:23:43,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:43,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:23:43,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:23:43,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-10-14 19:23:43,557 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) [2024-10-14 19:23:43,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:43,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-10-14 19:23:43,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:43,607 INFO L124 PetriNetUnfolderBase]: 70/157 cut-off events. [2024-10-14 19:23:43,607 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 19:23:43,608 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. [2024-10-14 19:23:43,610 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 11 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2024-10-14 19:23:43,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 78 flow [2024-10-14 19:23:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:23:43,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:23:43,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-10-14 19:23:43,620 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2024-10-14 19:23:43,622 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 52 transitions. [2024-10-14 19:23:43,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 78 flow [2024-10-14 19:23:43,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:23:43,626 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2024-10-14 19:23:43,628 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} [2024-10-14 19:23:43,632 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-10-14 19:23:43,633 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2024-10-14 19:23:43,634 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) [2024-10-14 19:23:43,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:43,634 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:43,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:23:43,634 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)] === [2024-10-14 19:23:43,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1038262774, now seen corresponding path program 1 times [2024-10-14 19:23:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:43,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412353066] [2024-10-14 19:23:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:43,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:43,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412353066] [2024-10-14 19:23:43,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412353066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:23:43,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:23:43,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:23:43,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556112295] [2024-10-14 19:23:43,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:23:43,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:23:43,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:43,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:23:43,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:23:43,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:43,893 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) [2024-10-14 19:23:43,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:43,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:43,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:44,019 INFO L124 PetriNetUnfolderBase]: 273/487 cut-off events. [2024-10-14 19:23:44,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:23:44,020 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. [2024-10-14 19:23:44,023 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 25 selfloop transitions, 4 changer transitions 21/54 dead transitions. [2024-10-14 19:23:44,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 54 transitions, 212 flow [2024-10-14 19:23:44,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:23:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:23:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-14 19:23:44,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2024-10-14 19:23:44,028 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 6 states and 99 transitions. [2024-10-14 19:23:44,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 54 transitions, 212 flow [2024-10-14 19:23:44,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 54 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:23:44,030 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 74 flow [2024-10-14 19:23:44,031 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} [2024-10-14 19:23:44,031 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2024-10-14 19:23:44,032 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 74 flow [2024-10-14 19:23:44,033 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) [2024-10-14 19:23:44,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:44,033 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:44,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:23:44,033 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)] === [2024-10-14 19:23:44,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:44,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1117686194, now seen corresponding path program 1 times [2024-10-14 19:23:44,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:44,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450390668] [2024-10-14 19:23:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:44,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:44,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:44,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450390668] [2024-10-14 19:23:44,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450390668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:23:44,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:23:44,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:23:44,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720578314] [2024-10-14 19:23:44,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:23:44,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:23:44,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:44,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:23:44,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:23:44,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:44,187 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) [2024-10-14 19:23:44,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:44,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:44,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:44,396 INFO L124 PetriNetUnfolderBase]: 382/704 cut-off events. [2024-10-14 19:23:44,397 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-10-14 19:23:44,399 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. [2024-10-14 19:23:44,401 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 9 changer transitions 20/79 dead transitions. [2024-10-14 19:23:44,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 79 transitions, 382 flow [2024-10-14 19:23:44,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:23:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:23:44,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2024-10-14 19:23:44,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-10-14 19:23:44,404 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 74 flow. Second operand 9 states and 144 transitions. [2024-10-14 19:23:44,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 79 transitions, 382 flow [2024-10-14 19:23:44,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 79 transitions, 366 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-14 19:23:44,407 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 159 flow [2024-10-14 19:23:44,407 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} [2024-10-14 19:23:44,408 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2024-10-14 19:23:44,408 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 159 flow [2024-10-14 19:23:44,409 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) [2024-10-14 19:23:44,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:44,409 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:44,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:23:44,409 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)] === [2024-10-14 19:23:44,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:44,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1000674482, now seen corresponding path program 2 times [2024-10-14 19:23:44,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:44,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139592206] [2024-10-14 19:23:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:44,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:44,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:44,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:44,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139592206] [2024-10-14 19:23:44,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139592206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:23:44,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:23:44,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:23:44,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577034411] [2024-10-14 19:23:44,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:23:44,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:23:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:44,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:23:44,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:23:44,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:44,530 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) [2024-10-14 19:23:44,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:44,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:44,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:44,714 INFO L124 PetriNetUnfolderBase]: 328/611 cut-off events. [2024-10-14 19:23:44,716 INFO L125 PetriNetUnfolderBase]: For 971/971 co-relation queries the response was YES. [2024-10-14 19:23:44,718 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. [2024-10-14 19:23:44,720 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 38 selfloop transitions, 9 changer transitions 28/79 dead transitions. [2024-10-14 19:23:44,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 499 flow [2024-10-14 19:23:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 19:23:44,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 19:23:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2024-10-14 19:23:44,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5474137931034483 [2024-10-14 19:23:44,722 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 159 flow. Second operand 8 states and 127 transitions. [2024-10-14 19:23:44,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 499 flow [2024-10-14 19:23:44,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 79 transitions, 491 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-14 19:23:44,730 INFO L231 Difference]: Finished difference. Result has 51 places, 34 transitions, 213 flow [2024-10-14 19:23:44,731 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} [2024-10-14 19:23:44,732 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2024-10-14 19:23:44,732 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 213 flow [2024-10-14 19:23:44,732 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) [2024-10-14 19:23:44,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:44,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:44,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:23:44,733 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)] === [2024-10-14 19:23:44,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:44,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1356857717, now seen corresponding path program 1 times [2024-10-14 19:23:44,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:44,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937471175] [2024-10-14 19:23:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:44,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:44,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:44,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937471175] [2024-10-14 19:23:44,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937471175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:23:44,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:23:44,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:23:44,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239686704] [2024-10-14 19:23:44,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:23:44,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:23:44,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:44,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:23:44,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:23:44,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:44,869 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) [2024-10-14 19:23:44,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:44,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:44,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:45,052 INFO L124 PetriNetUnfolderBase]: 355/662 cut-off events. [2024-10-14 19:23:45,053 INFO L125 PetriNetUnfolderBase]: For 1747/1747 co-relation queries the response was YES. [2024-10-14 19:23:45,054 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. [2024-10-14 19:23:45,057 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 16 changer transitions 21/84 dead transitions. [2024-10-14 19:23:45,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 600 flow [2024-10-14 19:23:45,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:23:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:23:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2024-10-14 19:23:45,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5363984674329502 [2024-10-14 19:23:45,058 INFO L175 Difference]: Start difference. First operand has 51 places, 34 transitions, 213 flow. Second operand 9 states and 140 transitions. [2024-10-14 19:23:45,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 600 flow [2024-10-14 19:23:45,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 84 transitions, 530 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-10-14 19:23:45,066 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 300 flow [2024-10-14 19:23:45,067 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} [2024-10-14 19:23:45,067 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2024-10-14 19:23:45,067 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 300 flow [2024-10-14 19:23:45,068 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) [2024-10-14 19:23:45,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:45,068 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:45,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:23:45,068 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)] === [2024-10-14 19:23:45,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:45,069 INFO L85 PathProgramCache]: Analyzing trace with hash 392343623, now seen corresponding path program 2 times [2024-10-14 19:23:45,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:45,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821906422] [2024-10-14 19:23:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:45,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:45,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:45,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821906422] [2024-10-14 19:23:45,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821906422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:23:45,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:23:45,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:23:45,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099499246] [2024-10-14 19:23:45,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:23:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:23:45,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:45,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:23:45,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:23:45,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:45,190 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) [2024-10-14 19:23:45,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:45,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:45,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:45,367 INFO L124 PetriNetUnfolderBase]: 427/790 cut-off events. [2024-10-14 19:23:45,368 INFO L125 PetriNetUnfolderBase]: For 2386/2386 co-relation queries the response was YES. [2024-10-14 19:23:45,371 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. [2024-10-14 19:23:45,374 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 43 selfloop transitions, 20 changer transitions 28/95 dead transitions. [2024-10-14 19:23:45,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 710 flow [2024-10-14 19:23:45,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:23:45,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:23:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2024-10-14 19:23:45,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2024-10-14 19:23:45,376 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 300 flow. Second operand 10 states and 155 transitions. [2024-10-14 19:23:45,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 710 flow [2024-10-14 19:23:45,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 95 transitions, 664 flow, removed 19 selfloop flow, removed 3 redundant places. [2024-10-14 19:23:45,383 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 381 flow [2024-10-14 19:23:45,383 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} [2024-10-14 19:23:45,384 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2024-10-14 19:23:45,385 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 381 flow [2024-10-14 19:23:45,385 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) [2024-10-14 19:23:45,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:45,385 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:45,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:23:45,386 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)] === [2024-10-14 19:23:45,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:45,386 INFO L85 PathProgramCache]: Analyzing trace with hash 653489688, now seen corresponding path program 1 times [2024-10-14 19:23:45,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:45,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641307120] [2024-10-14 19:23:45,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:45,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:45,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:45,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:45,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641307120] [2024-10-14 19:23:45,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641307120] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:23:45,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595900008] [2024-10-14 19:23:45,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:45,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:23:45,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:23:45,492 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) [2024-10-14 19:23:45,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 19:23:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:45,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 19:23:45,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:23:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:45,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:23:45,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:45,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595900008] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:23:45,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:23:45,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-10-14 19:23:45,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409198247] [2024-10-14 19:23:45,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:23:45,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 19:23:45,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:45,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 19:23:45,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-14 19:23:45,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:45,766 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) [2024-10-14 19:23:45,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:45,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:45,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:46,131 INFO L124 PetriNetUnfolderBase]: 643/1171 cut-off events. [2024-10-14 19:23:46,132 INFO L125 PetriNetUnfolderBase]: For 6374/6374 co-relation queries the response was YES. [2024-10-14 19:23:46,134 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. [2024-10-14 19:23:46,138 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 65 selfloop transitions, 35 changer transitions 56/160 dead transitions. [2024-10-14 19:23:46,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 160 transitions, 1361 flow [2024-10-14 19:23:46,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 19:23:46,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 19:23:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 293 transitions. [2024-10-14 19:23:46,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5317604355716878 [2024-10-14 19:23:46,139 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 381 flow. Second operand 19 states and 293 transitions. [2024-10-14 19:23:46,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 160 transitions, 1361 flow [2024-10-14 19:23:46,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 160 transitions, 1300 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-10-14 19:23:46,147 INFO L231 Difference]: Finished difference. Result has 84 places, 62 transitions, 705 flow [2024-10-14 19:23:46,147 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} [2024-10-14 19:23:46,147 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 54 predicate places. [2024-10-14 19:23:46,147 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 62 transitions, 705 flow [2024-10-14 19:23:46,148 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) [2024-10-14 19:23:46,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:46,148 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:46,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 19:23:46,352 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 [2024-10-14 19:23:46,353 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)] === [2024-10-14 19:23:46,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:46,354 INFO L85 PathProgramCache]: Analyzing trace with hash 254201038, now seen corresponding path program 1 times [2024-10-14 19:23:46,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:46,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479878744] [2024-10-14 19:23:46,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:46,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:23:46,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479878744] [2024-10-14 19:23:46,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479878744] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:23:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597590717] [2024-10-14 19:23:46,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:46,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:23:46,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:23:46,493 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) [2024-10-14 19:23:46,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 19:23:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:46,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 19:23:46,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:23:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:23:46,600 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:23:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:23:46,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597590717] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:23:46,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:23:46,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-14 19:23:46,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358318189] [2024-10-14 19:23:46,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:23:46,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 19:23:46,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:46,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 19:23:46,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-10-14 19:23:46,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:46,841 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) [2024-10-14 19:23:46,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:46,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:46,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:47,310 INFO L124 PetriNetUnfolderBase]: 841/1583 cut-off events. [2024-10-14 19:23:47,310 INFO L125 PetriNetUnfolderBase]: For 16610/16610 co-relation queries the response was YES. [2024-10-14 19:23:47,315 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. [2024-10-14 19:23:47,320 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 92 selfloop transitions, 27 changer transitions 89/212 dead transitions. [2024-10-14 19:23:47,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 212 transitions, 2279 flow [2024-10-14 19:23:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-14 19:23:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-14 19:23:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 376 transitions. [2024-10-14 19:23:47,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5186206896551724 [2024-10-14 19:23:47,321 INFO L175 Difference]: Start difference. First operand has 84 places, 62 transitions, 705 flow. Second operand 25 states and 376 transitions. [2024-10-14 19:23:47,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 212 transitions, 2279 flow [2024-10-14 19:23:47,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 212 transitions, 1791 flow, removed 229 selfloop flow, removed 10 redundant places. [2024-10-14 19:23:47,339 INFO L231 Difference]: Finished difference. Result has 112 places, 76 transitions, 784 flow [2024-10-14 19:23:47,339 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} [2024-10-14 19:23:47,339 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places. [2024-10-14 19:23:47,339 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 76 transitions, 784 flow [2024-10-14 19:23:47,340 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) [2024-10-14 19:23:47,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:47,340 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:47,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 19:23:47,544 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 [2024-10-14 19:23:47,544 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)] === [2024-10-14 19:23:47,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:47,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1512318702, now seen corresponding path program 2 times [2024-10-14 19:23:47,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:47,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44158959] [2024-10-14 19:23:47,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:47,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:47,696 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:23:47,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:47,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44158959] [2024-10-14 19:23:47,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44158959] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:23:47,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161011174] [2024-10-14 19:23:47,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 19:23:47,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:23:47,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:23:47,703 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) [2024-10-14 19:23:47,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 19:23:47,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 19:23:47,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:23:47,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 19:23:47,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:23:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:23:47,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:23:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:23:48,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161011174] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:23:48,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:23:48,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-14 19:23:48,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55412544] [2024-10-14 19:23:48,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:23:48,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 19:23:48,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:48,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 19:23:48,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-10-14 19:23:48,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:48,030 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) [2024-10-14 19:23:48,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:48,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:48,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:48,866 INFO L124 PetriNetUnfolderBase]: 1453/2768 cut-off events. [2024-10-14 19:23:48,866 INFO L125 PetriNetUnfolderBase]: For 57987/57987 co-relation queries the response was YES. [2024-10-14 19:23:48,875 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. [2024-10-14 19:23:48,885 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 127 selfloop transitions, 82 changer transitions 91/304 dead transitions. [2024-10-14 19:23:48,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 304 transitions, 3738 flow [2024-10-14 19:23:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 19:23:48,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-10-14 19:23:48,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 489 transitions. [2024-10-14 19:23:48,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5269396551724138 [2024-10-14 19:23:48,887 INFO L175 Difference]: Start difference. First operand has 112 places, 76 transitions, 784 flow. Second operand 32 states and 489 transitions. [2024-10-14 19:23:48,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 304 transitions, 3738 flow [2024-10-14 19:23:48,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 304 transitions, 3141 flow, removed 289 selfloop flow, removed 13 redundant places. [2024-10-14 19:23:48,929 INFO L231 Difference]: Finished difference. Result has 144 places, 122 transitions, 1575 flow [2024-10-14 19:23:48,930 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} [2024-10-14 19:23:48,930 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 114 predicate places. [2024-10-14 19:23:48,930 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 122 transitions, 1575 flow [2024-10-14 19:23:48,931 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) [2024-10-14 19:23:48,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:48,931 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:48,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 19:23:49,131 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 [2024-10-14 19:23:49,132 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)] === [2024-10-14 19:23:49,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1976850896, now seen corresponding path program 3 times [2024-10-14 19:23:49,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:49,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933387929] [2024-10-14 19:23:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:49,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:23:49,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:49,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933387929] [2024-10-14 19:23:49,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933387929] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:23:49,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676014626] [2024-10-14 19:23:49,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 19:23:49,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:23:49,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:23:49,222 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) [2024-10-14 19:23:49,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 19:23:49,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-14 19:23:49,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:23:49,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 19:23:49,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:23:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:23:49,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:23:49,448 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:23:49,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676014626] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:23:49,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:23:49,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-14 19:23:49,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463723806] [2024-10-14 19:23:49,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:23:49,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 19:23:49,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:49,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 19:23:49,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-10-14 19:23:49,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:49,483 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) [2024-10-14 19:23:49,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:49,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:49,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:50,752 INFO L124 PetriNetUnfolderBase]: 2047/3859 cut-off events. [2024-10-14 19:23:50,758 INFO L125 PetriNetUnfolderBase]: For 146492/146492 co-relation queries the response was YES. [2024-10-14 19:23:50,773 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. [2024-10-14 19:23:50,784 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 131 selfloop transitions, 129 changer transitions 113/377 dead transitions. [2024-10-14 19:23:50,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 377 transitions, 5732 flow [2024-10-14 19:23:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-14 19:23:50,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-10-14 19:23:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 535 transitions. [2024-10-14 19:23:50,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5270935960591133 [2024-10-14 19:23:50,787 INFO L175 Difference]: Start difference. First operand has 144 places, 122 transitions, 1575 flow. Second operand 35 states and 535 transitions. [2024-10-14 19:23:50,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 377 transitions, 5732 flow [2024-10-14 19:23:50,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 377 transitions, 4879 flow, removed 410 selfloop flow, removed 15 redundant places. [2024-10-14 19:23:50,947 INFO L231 Difference]: Finished difference. Result has 176 places, 169 transitions, 2497 flow [2024-10-14 19:23:50,948 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} [2024-10-14 19:23:50,949 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 146 predicate places. [2024-10-14 19:23:50,949 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 169 transitions, 2497 flow [2024-10-14 19:23:50,949 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) [2024-10-14 19:23:50,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:50,950 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:50,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 19:23:51,150 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 [2024-10-14 19:23:51,151 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)] === [2024-10-14 19:23:51,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:51,152 INFO L85 PathProgramCache]: Analyzing trace with hash -690914415, now seen corresponding path program 4 times [2024-10-14 19:23:51,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:51,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226230067] [2024-10-14 19:23:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:51,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:51,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:51,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226230067] [2024-10-14 19:23:51,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226230067] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:23:51,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907592050] [2024-10-14 19:23:51,304 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 19:23:51,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:23:51,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:23:51,306 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) [2024-10-14 19:23:51,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 19:23:51,349 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 19:23:51,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:23:51,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 19:23:51,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:23:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:51,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:23:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:23:51,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907592050] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:23:51,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:23:51,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-10-14 19:23:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092375068] [2024-10-14 19:23:51,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:23:51,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-14 19:23:51,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:51,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-14 19:23:51,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-10-14 19:23:51,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:51,595 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) [2024-10-14 19:23:51,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:51,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:51,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:53,509 INFO L124 PetriNetUnfolderBase]: 3406/6272 cut-off events. [2024-10-14 19:23:53,509 INFO L125 PetriNetUnfolderBase]: For 377552/377552 co-relation queries the response was YES. [2024-10-14 19:23:53,540 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. [2024-10-14 19:23:53,568 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 170 selfloop transitions, 223 changer transitions 160/557 dead transitions. [2024-10-14 19:23:53,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 557 transitions, 11321 flow [2024-10-14 19:23:53,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-14 19:23:53,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-10-14 19:23:53,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 781 transitions. [2024-10-14 19:23:53,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5280594996619338 [2024-10-14 19:23:53,570 INFO L175 Difference]: Start difference. First operand has 176 places, 169 transitions, 2497 flow. Second operand 51 states and 781 transitions. [2024-10-14 19:23:53,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 557 transitions, 11321 flow [2024-10-14 19:23:54,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 557 transitions, 9120 flow, removed 1070 selfloop flow, removed 19 redundant places. [2024-10-14 19:23:54,200 INFO L231 Difference]: Finished difference. Result has 230 places, 279 transitions, 5255 flow [2024-10-14 19:23:54,202 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} [2024-10-14 19:23:54,202 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 200 predicate places. [2024-10-14 19:23:54,202 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 279 transitions, 5255 flow [2024-10-14 19:23:54,203 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) [2024-10-14 19:23:54,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:54,203 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:54,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 19:23:54,408 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 [2024-10-14 19:23:54,409 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)] === [2024-10-14 19:23:54,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1714219090, now seen corresponding path program 5 times [2024-10-14 19:23:54,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:54,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437541405] [2024-10-14 19:23:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:54,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:54,931 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:23:54,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:54,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437541405] [2024-10-14 19:23:54,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437541405] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:23:54,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096371010] [2024-10-14 19:23:54,932 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 19:23:54,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:23:54,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:23:54,934 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) [2024-10-14 19:23:54,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 19:23:54,992 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-10-14 19:23:54,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:23:54,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 19:23:54,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:23:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:23:55,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:23:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:23:55,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096371010] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:23:55,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:23:55,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 28 [2024-10-14 19:23:55,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005916752] [2024-10-14 19:23:55,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:23:55,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-14 19:23:55,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:23:55,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-14 19:23:55,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2024-10-14 19:23:55,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:23:55,450 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) [2024-10-14 19:23:55,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:23:55,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:23:55,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:23:57,533 INFO L124 PetriNetUnfolderBase]: 3496/6614 cut-off events. [2024-10-14 19:23:57,533 INFO L125 PetriNetUnfolderBase]: For 529752/529752 co-relation queries the response was YES. [2024-10-14 19:23:57,575 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. [2024-10-14 19:23:57,601 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 332 selfloop transitions, 49 changer transitions 113/498 dead transitions. [2024-10-14 19:23:57,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 498 transitions, 11033 flow [2024-10-14 19:23:57,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-14 19:23:57,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-10-14 19:23:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 544 transitions. [2024-10-14 19:23:57,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5069897483690587 [2024-10-14 19:23:57,603 INFO L175 Difference]: Start difference. First operand has 230 places, 279 transitions, 5255 flow. Second operand 37 states and 544 transitions. [2024-10-14 19:23:57,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 498 transitions, 11033 flow [2024-10-14 19:23:58,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 498 transitions, 7431 flow, removed 1776 selfloop flow, removed 19 redundant places. [2024-10-14 19:23:58,889 INFO L231 Difference]: Finished difference. Result has 253 places, 297 transitions, 4066 flow [2024-10-14 19:23:58,892 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} [2024-10-14 19:23:58,892 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 223 predicate places. [2024-10-14 19:23:58,892 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 297 transitions, 4066 flow [2024-10-14 19:23:58,893 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) [2024-10-14 19:23:58,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:23:58,893 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:23:58,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 19:23:59,093 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 [2024-10-14 19:23:59,093 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)] === [2024-10-14 19:23:59,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:23:59,094 INFO L85 PathProgramCache]: Analyzing trace with hash 22762492, now seen corresponding path program 6 times [2024-10-14 19:23:59,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:23:59,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973736030] [2024-10-14 19:23:59,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:23:59,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:23:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:23:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:23:59,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:23:59,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973736030] [2024-10-14 19:23:59,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973736030] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:23:59,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658696549] [2024-10-14 19:23:59,535 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 19:23:59,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:23:59,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:23:59,537 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) [2024-10-14 19:23:59,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 19:23:59,587 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-10-14 19:23:59,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:23:59,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 19:23:59,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:23:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:23:59,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:24:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:24:00,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658696549] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:24:00,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:24:00,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 30 [2024-10-14 19:24:00,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828943519] [2024-10-14 19:24:00,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:24:00,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-14 19:24:00,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:00,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-14 19:24:00,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2024-10-14 19:24:00,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:24:00,141 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) [2024-10-14 19:24:00,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:00,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:24:00,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:02,559 INFO L124 PetriNetUnfolderBase]: 4018/7805 cut-off events. [2024-10-14 19:24:02,559 INFO L125 PetriNetUnfolderBase]: For 474448/474448 co-relation queries the response was YES. [2024-10-14 19:24:02,607 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. [2024-10-14 19:24:02,629 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 316 selfloop transitions, 170 changer transitions 127/617 dead transitions. [2024-10-14 19:24:02,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 617 transitions, 10034 flow [2024-10-14 19:24:02,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-14 19:24:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-10-14 19:24:02,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 651 transitions. [2024-10-14 19:24:02,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5101880877742947 [2024-10-14 19:24:02,633 INFO L175 Difference]: Start difference. First operand has 253 places, 297 transitions, 4066 flow. Second operand 44 states and 651 transitions. [2024-10-14 19:24:02,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 617 transitions, 10034 flow [2024-10-14 19:24:03,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 617 transitions, 9259 flow, removed 360 selfloop flow, removed 23 redundant places. [2024-10-14 19:24:03,649 INFO L231 Difference]: Finished difference. Result has 285 places, 354 transitions, 5237 flow [2024-10-14 19:24:03,649 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} [2024-10-14 19:24:03,650 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 255 predicate places. [2024-10-14 19:24:03,650 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 354 transitions, 5237 flow [2024-10-14 19:24:03,650 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) [2024-10-14 19:24:03,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:03,651 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:03,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 19:24:03,854 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 [2024-10-14 19:24:03,855 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)] === [2024-10-14 19:24:03,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:03,855 INFO L85 PathProgramCache]: Analyzing trace with hash 249518812, now seen corresponding path program 7 times [2024-10-14 19:24:03,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:03,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30085227] [2024-10-14 19:24:03,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:03,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:04,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:04,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30085227] [2024-10-14 19:24:04,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30085227] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:24:04,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410898857] [2024-10-14 19:24:04,303 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-14 19:24:04,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:24:04,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:24:04,304 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) [2024-10-14 19:24:04,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 19:24:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:04,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 19:24:04,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:24:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:04,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:24:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:05,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410898857] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:24:05,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:24:05,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 34 [2024-10-14 19:24:05,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942887015] [2024-10-14 19:24:05,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:24:05,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-14 19:24:05,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:05,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-14 19:24:05,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 19:24:05,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:24:05,043 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) [2024-10-14 19:24:05,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:05,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:24:05,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:07,815 INFO L124 PetriNetUnfolderBase]: 4729/9227 cut-off events. [2024-10-14 19:24:07,815 INFO L125 PetriNetUnfolderBase]: For 703460/703460 co-relation queries the response was YES. [2024-10-14 19:24:07,990 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. [2024-10-14 19:24:08,034 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 222 selfloop transitions, 349 changer transitions 139/714 dead transitions. [2024-10-14 19:24:08,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 714 transitions, 12839 flow [2024-10-14 19:24:08,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-10-14 19:24:08,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2024-10-14 19:24:08,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 749 transitions. [2024-10-14 19:24:08,040 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.516551724137931 [2024-10-14 19:24:08,040 INFO L175 Difference]: Start difference. First operand has 285 places, 354 transitions, 5237 flow. Second operand 50 states and 749 transitions. [2024-10-14 19:24:08,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 714 transitions, 12839 flow [2024-10-14 19:24:09,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 714 transitions, 11485 flow, removed 589 selfloop flow, removed 30 redundant places. [2024-10-14 19:24:09,678 INFO L231 Difference]: Finished difference. Result has 319 places, 424 transitions, 7004 flow [2024-10-14 19:24:09,678 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} [2024-10-14 19:24:09,679 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 289 predicate places. [2024-10-14 19:24:09,680 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 424 transitions, 7004 flow [2024-10-14 19:24:09,680 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) [2024-10-14 19:24:09,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:09,680 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:09,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-14 19:24:09,884 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 [2024-10-14 19:24:09,885 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)] === [2024-10-14 19:24:09,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:09,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1096510394, now seen corresponding path program 8 times [2024-10-14 19:24:09,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:09,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654452670] [2024-10-14 19:24:09,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:09,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:10,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:10,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654452670] [2024-10-14 19:24:10,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654452670] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:24:10,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291028548] [2024-10-14 19:24:10,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 19:24:10,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:24:10,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:24:10,312 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) [2024-10-14 19:24:10,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 19:24:10,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 19:24:10,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:24:10,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 19:24:10,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:24:10,501 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:10,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:24:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:10,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291028548] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:24:10,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:24:10,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 33 [2024-10-14 19:24:10,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346220739] [2024-10-14 19:24:10,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:24:10,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-14 19:24:10,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:10,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-14 19:24:10,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=930, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 19:24:10,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:24:10,844 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) [2024-10-14 19:24:10,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:10,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:24:10,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:14,643 INFO L124 PetriNetUnfolderBase]: 5980/11511 cut-off events. [2024-10-14 19:24:14,643 INFO L125 PetriNetUnfolderBase]: For 1143538/1143538 co-relation queries the response was YES. [2024-10-14 19:24:14,740 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. [2024-10-14 19:24:14,773 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 262 selfloop transitions, 444 changer transitions 137/847 dead transitions. [2024-10-14 19:24:14,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 847 transitions, 16361 flow [2024-10-14 19:24:14,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-10-14 19:24:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2024-10-14 19:24:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 869 transitions. [2024-10-14 19:24:14,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5257108287961283 [2024-10-14 19:24:14,776 INFO L175 Difference]: Start difference. First operand has 319 places, 424 transitions, 7004 flow. Second operand 57 states and 869 transitions. [2024-10-14 19:24:14,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 847 transitions, 16361 flow [2024-10-14 19:24:16,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 847 transitions, 14146 flow, removed 1055 selfloop flow, removed 22 redundant places. [2024-10-14 19:24:16,907 INFO L231 Difference]: Finished difference. Result has 369 places, 504 transitions, 8949 flow [2024-10-14 19:24:16,908 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} [2024-10-14 19:24:16,909 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 339 predicate places. [2024-10-14 19:24:16,909 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 504 transitions, 8949 flow [2024-10-14 19:24:16,909 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) [2024-10-14 19:24:16,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:16,913 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:16,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-14 19:24:17,114 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 [2024-10-14 19:24:17,114 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)] === [2024-10-14 19:24:17,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:17,115 INFO L85 PathProgramCache]: Analyzing trace with hash 566196863, now seen corresponding path program 9 times [2024-10-14 19:24:17,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:17,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531016633] [2024-10-14 19:24:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:17,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:17,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:17,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531016633] [2024-10-14 19:24:17,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531016633] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:24:17,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051249193] [2024-10-14 19:24:17,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 19:24:17,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:24:17,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:24:17,571 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) [2024-10-14 19:24:17,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 19:24:17,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-14 19:24:17,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:24:17,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-14 19:24:17,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:24:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:17,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:24:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 19:24:17,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051249193] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:24:17,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:24:17,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 28 [2024-10-14 19:24:17,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227163836] [2024-10-14 19:24:17,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:24:17,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-14 19:24:17,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:17,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-14 19:24:17,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=672, Unknown=0, NotChecked=0, Total=812 [2024-10-14 19:24:17,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:24:17,986 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) [2024-10-14 19:24:17,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:17,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:24:17,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:21,959 INFO L124 PetriNetUnfolderBase]: 6205/12022 cut-off events. [2024-10-14 19:24:21,959 INFO L125 PetriNetUnfolderBase]: For 1358213/1358213 co-relation queries the response was YES. [2024-10-14 19:24:22,068 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. [2024-10-14 19:24:22,110 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 219 selfloop transitions, 455 changer transitions 124/802 dead transitions. [2024-10-14 19:24:22,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 802 transitions, 16439 flow [2024-10-14 19:24:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-14 19:24:22,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-10-14 19:24:22,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 771 transitions. [2024-10-14 19:24:22,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5212981744421906 [2024-10-14 19:24:22,115 INFO L175 Difference]: Start difference. First operand has 369 places, 504 transitions, 8949 flow. Second operand 51 states and 771 transitions. [2024-10-14 19:24:22,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 802 transitions, 16439 flow [2024-10-14 19:24:25,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 802 transitions, 14275 flow, removed 830 selfloop flow, removed 37 redundant places. [2024-10-14 19:24:25,363 INFO L231 Difference]: Finished difference. Result has 386 places, 530 transitions, 9468 flow [2024-10-14 19:24:25,364 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} [2024-10-14 19:24:25,364 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 356 predicate places. [2024-10-14 19:24:25,364 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 530 transitions, 9468 flow [2024-10-14 19:24:25,364 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) [2024-10-14 19:24:25,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:25,365 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:25,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-14 19:24:25,568 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 [2024-10-14 19:24:25,568 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)] === [2024-10-14 19:24:25,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:25,569 INFO L85 PathProgramCache]: Analyzing trace with hash -45509489, now seen corresponding path program 10 times [2024-10-14 19:24:25,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:25,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666801198] [2024-10-14 19:24:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:25,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:24:25,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:25,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666801198] [2024-10-14 19:24:25,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666801198] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:24:25,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978375899] [2024-10-14 19:24:25,982 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 19:24:25,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:24:25,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:24:25,984 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) [2024-10-14 19:24:25,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 19:24:26,033 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 19:24:26,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:24:26,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-14 19:24:26,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:24:26,131 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:24:26,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 19:24:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:24:26,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978375899] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 19:24:26,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 19:24:26,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 30 [2024-10-14 19:24:26,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109880136] [2024-10-14 19:24:26,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 19:24:26,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-14 19:24:26,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:26,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-14 19:24:26,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2024-10-14 19:24:26,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2024-10-14 19:24:26,413 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) [2024-10-14 19:24:26,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:26,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2024-10-14 19:24:26,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:30,624 INFO L124 PetriNetUnfolderBase]: 6268/12108 cut-off events. [2024-10-14 19:24:30,624 INFO L125 PetriNetUnfolderBase]: For 1492952/1492952 co-relation queries the response was YES. [2024-10-14 19:24:30,732 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. [2024-10-14 19:24:30,764 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 248 selfloop transitions, 488 changer transitions 151/891 dead transitions. [2024-10-14 19:24:30,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 891 transitions, 18278 flow [2024-10-14 19:24:30,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-10-14 19:24:30,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2024-10-14 19:24:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 879 transitions. [2024-10-14 19:24:30,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5225921521997622 [2024-10-14 19:24:30,766 INFO L175 Difference]: Start difference. First operand has 386 places, 530 transitions, 9468 flow. Second operand 58 states and 879 transitions. [2024-10-14 19:24:30,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 891 transitions, 18278 flow [2024-10-14 19:24:34,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 891 transitions, 16884 flow, removed 528 selfloop flow, removed 25 redundant places. [2024-10-14 19:24:34,542 INFO L231 Difference]: Finished difference. Result has 429 places, 543 transitions, 10503 flow [2024-10-14 19:24:34,545 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} [2024-10-14 19:24:34,546 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 399 predicate places. [2024-10-14 19:24:34,546 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 543 transitions, 10503 flow [2024-10-14 19:24:34,546 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) [2024-10-14 19:24:34,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:24:34,546 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:24:34,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 19:24:34,746 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 [2024-10-14 19:24:34,747 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)] === [2024-10-14 19:24:34,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:24:34,747 INFO L85 PathProgramCache]: Analyzing trace with hash 253146827, now seen corresponding path program 11 times [2024-10-14 19:24:34,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:24:34,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421337789] [2024-10-14 19:24:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:24:34,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:24:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:24:34,848 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 244 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:24:34,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:24:34,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421337789] [2024-10-14 19:24:34,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421337789] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 19:24:34,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432718143] [2024-10-14 19:24:34,849 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 19:24:34,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 19:24:34,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:24:34,851 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) [2024-10-14 19:24:34,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 19:24:34,900 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-10-14 19:24:34,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:24:34,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 19:24:34,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:24:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 19:24:34,954 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:24:34,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432718143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:24:34,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 19:24:34,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2024-10-14 19:24:34,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536539464] [2024-10-14 19:24:34,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:24:34,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 19:24:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:24:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 19:24:34,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2024-10-14 19:24:34,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-10-14 19:24:34,957 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) [2024-10-14 19:24:34,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:24:34,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-10-14 19:24:34,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:24:46,953 INFO L124 PetriNetUnfolderBase]: 21262/41425 cut-off events. [2024-10-14 19:24:46,954 INFO L125 PetriNetUnfolderBase]: For 4707455/4709719 co-relation queries the response was YES. [2024-10-14 19:24:49,023 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. [2024-10-14 19:24:49,062 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 0 selfloop transitions, 0 changer transitions 602/602 dead transitions. [2024-10-14 19:24:49,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 602 transitions, 9608 flow [2024-10-14 19:24:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 19:24:49,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-14 19:24:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 263 transitions. [2024-10-14 19:24:49,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6976127320954907 [2024-10-14 19:24:49,066 INFO L175 Difference]: Start difference. First operand has 429 places, 543 transitions, 10503 flow. Second operand 13 states and 263 transitions. [2024-10-14 19:24:49,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 602 transitions, 9608 flow [2024-10-14 19:24:53,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 602 transitions, 8016 flow, removed 184 selfloop flow, removed 73 redundant places. [2024-10-14 19:24:53,622 INFO L231 Difference]: Finished difference. Result has 351 places, 0 transitions, 0 flow [2024-10-14 19:24:53,622 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} [2024-10-14 19:24:53,623 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 321 predicate places. [2024-10-14 19:24:53,623 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 0 transitions, 0 flow [2024-10-14 19:24:53,623 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) [2024-10-14 19:24:53,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-14 19:24:53,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-14 19:24:53,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-14 19:24:53,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-14 19:24:53,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 19:24:53,827 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 [2024-10-14 19:24:53,827 INFO L407 BasicCegarLoop]: Path program histogram: [11, 2, 2, 1, 1, 1] [2024-10-14 19:24:53,830 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:24:53,830 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:24:53,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:24:53 BasicIcfg [2024-10-14 19:24:53,833 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:24:53,834 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:24:53,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:24:53,834 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:24:53,834 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:23:43" (3/4) ... [2024-10-14 19:24:53,835 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 19:24:53,838 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-10-14 19:24:53,838 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-10-14 19:24:53,840 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-10-14 19:24:53,840 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-14 19:24:53,840 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-14 19:24:53,840 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 19:24:53,895 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 19:24:53,895 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 19:24:53,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:24:53,896 INFO L158 Benchmark]: Toolchain (without parser) took 71794.40ms. Allocated memory was 159.4MB in the beginning and 12.6GB in the end (delta: 12.4GB). Free memory was 102.4MB in the beginning and 10.0GB in the end (delta: -9.9GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-10-14 19:24:53,896 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:24:53,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.18ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 81.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 19:24:53,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.92ms. Allocated memory is still 159.4MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:24:53,897 INFO L158 Benchmark]: Boogie Preprocessor took 42.51ms. Allocated memory is still 159.4MB. Free memory was 79.4MB in the beginning and 77.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:24:53,897 INFO L158 Benchmark]: RCFGBuilder took 529.19ms. Allocated memory is still 159.4MB. Free memory was 77.3MB in the beginning and 123.3MB in the end (delta: -46.0MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-10-14 19:24:53,897 INFO L158 Benchmark]: TraceAbstraction took 70683.60ms. Allocated memory was 159.4MB in the beginning and 12.6GB in the end (delta: 12.4GB). Free memory was 123.3MB in the beginning and 10.0GB in the end (delta: -9.9GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2024-10-14 19:24:53,897 INFO L158 Benchmark]: Witness Printer took 61.61ms. Allocated memory is still 12.6GB. Free memory was 10.0GB in the beginning and 10.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:24:53,898 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.18ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 81.5MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.92ms. Allocated memory is still 159.4MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.51ms. Allocated memory is still 159.4MB. Free memory was 79.4MB in the beginning and 77.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.19ms. Allocated memory is still 159.4MB. Free memory was 77.3MB in the beginning and 123.3MB in the end (delta: -46.0MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 70683.60ms. Allocated memory was 159.4MB in the beginning and 12.6GB in the end (delta: 12.4GB). Free memory was 123.3MB in the beginning and 10.0GB in the end (delta: -9.9GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. * Witness Printer took 61.61ms. Allocated memory is still 12.6GB. Free memory was 10.0GB in the beginning and 10.0GB in the end (delta: 4.2MB). 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: 70.6s, OverallIterations: 18, TraceHistogramMax: 11, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 59.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6244 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6217 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 3.9s 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, 8.0s 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, 0.3s SatisfiabilityAnalysisTime, 7.9s 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! [2024-10-14 19:24:53,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE