./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-wmm/safe021_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe021_tso.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:40:13,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:40:13,430 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:40:13,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:40:13,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:40:13,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:40:13,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:40:13,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:40:13,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:40:13,474 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:40:13,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:40:13,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:40:13,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:40:13,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:40:13,477 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:40:13,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:40:13,478 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:40:13,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:40:13,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:40:13,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:40:13,479 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:40:13,483 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:40:13,483 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:40:13,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:40:13,483 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:40:13,484 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:40:13,484 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:40:13,484 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:40:13,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:40:13,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:40:13,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:40:13,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:40:13,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:40:13,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:40:13,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:40:13,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:40:13,487 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:40:13,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:40:13,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:40:13,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:40:13,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:40:13,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:40:13,489 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 [2024-10-11 19:40:13,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:40:13,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:40:13,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:40:13,796 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:40:13,797 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:40:13,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe021_tso.i [2024-10-11 19:40:15,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:40:15,536 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:40:15,537 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe021_tso.i [2024-10-11 19:40:15,557 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/feeaa3aab/2234bc504fa74a23a5219b9d8f745dac/FLAGd6b851d39 [2024-10-11 19:40:15,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/feeaa3aab/2234bc504fa74a23a5219b9d8f745dac [2024-10-11 19:40:15,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:40:15,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:40:15,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:40:15,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:40:15,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:40:15,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:40:15" (1/1) ... [2024-10-11 19:40:15,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e984af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:15, skipping insertion in model container [2024-10-11 19:40:15,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:40:15" (1/1) ... [2024-10-11 19:40:15,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:40:16,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:40:16,245 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:40:16,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:40:16,341 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:40:16,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16 WrapperNode [2024-10-11 19:40:16,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:40:16,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:40:16,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:40:16,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:40:16,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,401 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-10-11 19:40:16,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:40:16,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:40:16,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:40:16,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:40:16,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,429 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]. [2024-10-11 19:40:16,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:40:16,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:40:16,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:40:16,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:40:16,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (1/1) ... [2024-10-11 19:40:16,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:40:16,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:40:16,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:40:16,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:40:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:40:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:40:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:40:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:40:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:40:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:40:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:40:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:40:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:40:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:40:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:40:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:40:16,578 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:40:16,682 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:40:16,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:40:16,818 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:40:16,819 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:40:16,908 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:40:16,908 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:40:16,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:40:16 BoogieIcfgContainer [2024-10-11 19:40:16,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:40:16,910 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:40:16,911 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:40:16,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:40:16,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:40:15" (1/3) ... [2024-10-11 19:40:16,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc53a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:40:16, skipping insertion in model container [2024-10-11 19:40:16,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:40:16" (2/3) ... [2024-10-11 19:40:16,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc53a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:40:16, skipping insertion in model container [2024-10-11 19:40:16,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:40:16" (3/3) ... [2024-10-11 19:40:16,918 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2024-10-11 19:40:16,935 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:40:16,936 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:40:16,936 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:40:16,985 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:40:17,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-10-11 19:40:17,039 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-11 19:40:17,040 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:40:17,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-10-11 19:40:17,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-10-11 19:40:17,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-10-11 19:40:17,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:40:17,062 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;@361f1498, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:40:17,062 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-11 19:40:17,074 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:40:17,074 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-10-11 19:40:17,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:40:17,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:17,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:17,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:17,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:17,082 INFO L85 PathProgramCache]: Analyzing trace with hash 710438097, now seen corresponding path program 1 times [2024-10-11 19:40:17,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:17,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487826583] [2024-10-11 19:40:17,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:17,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:17,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:17,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487826583] [2024-10-11 19:40:17,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487826583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:17,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:17,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:40:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437237362] [2024-10-11 19:40:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:17,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:40:17,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:17,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:40:17,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:40:17,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-10-11 19:40:17,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-11 19:40:17,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:17,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-10-11 19:40:17,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:17,520 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-10-11 19:40:17,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:40:17,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1153 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-10-11 19:40:17,527 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-10-11 19:40:17,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-10-11 19:40:17,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:40:17,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:40:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-10-11 19:40:17,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-10-11 19:40:17,542 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-10-11 19:40:17,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-10-11 19:40:17,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:40:17,550 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-10-11 19:40:17,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-10-11 19:40:17,555 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-10-11 19:40:17,556 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-10-11 19:40:17,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-11 19:40:17,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:17,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:17,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:40:17,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:17,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash 710439650, now seen corresponding path program 1 times [2024-10-11 19:40:17,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:17,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768919892] [2024-10-11 19:40:17,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:17,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:17,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:17,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768919892] [2024-10-11 19:40:17,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768919892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:17,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:17,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:40:17,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491878567] [2024-10-11 19:40:17,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:17,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:40:17,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:17,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:40:17,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:40:18,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-10-11 19:40:18,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-11 19:40:18,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:18,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-10-11 19:40:18,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:18,489 INFO L124 PetriNetUnfolderBase]: 1052/2030 cut-off events. [2024-10-11 19:40:18,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:40:18,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3721 conditions, 2030 events. 1052/2030 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 14741 event pairs, 211 based on Foata normal form. 0/1935 useless extension candidates. Maximal degree in co-relation 3715. Up to 644 conditions per place. [2024-10-11 19:40:18,509 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 26 selfloop transitions, 5 changer transitions 48/94 dead transitions. [2024-10-11 19:40:18,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 94 transitions, 356 flow [2024-10-11 19:40:18,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:40:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:40:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 252 transitions. [2024-10-11 19:40:18,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6511627906976745 [2024-10-11 19:40:18,513 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 252 transitions. [2024-10-11 19:40:18,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 94 transitions, 356 flow [2024-10-11 19:40:18,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 94 transitions, 355 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:40:18,520 INFO L231 Difference]: Finished difference. Result has 58 places, 37 transitions, 143 flow [2024-10-11 19:40:18,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=143, PETRI_PLACES=58, PETRI_TRANSITIONS=37} [2024-10-11 19:40:18,522 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-10-11 19:40:18,522 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 37 transitions, 143 flow [2024-10-11 19:40:18,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-10-11 19:40:18,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:18,523 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:18,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:40:18,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:18,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:18,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2062927041, now seen corresponding path program 1 times [2024-10-11 19:40:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:18,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508527188] [2024-10-11 19:40:18,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:18,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:18,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:18,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508527188] [2024-10-11 19:40:18,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508527188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:18,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:18,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:18,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551955440] [2024-10-11 19:40:18,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:18,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:18,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:18,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-10-11 19:40:18,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 37 transitions, 143 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-10-11 19:40:18,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:18,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-10-11 19:40:18,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:19,137 INFO L124 PetriNetUnfolderBase]: 684/1437 cut-off events. [2024-10-11 19:40:19,138 INFO L125 PetriNetUnfolderBase]: For 1554/1554 co-relation queries the response was YES. [2024-10-11 19:40:19,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3919 conditions, 1437 events. 684/1437 cut-off events. For 1554/1554 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 10161 event pairs, 126 based on Foata normal form. 40/1462 useless extension candidates. Maximal degree in co-relation 3904. Up to 517 conditions per place. [2024-10-11 19:40:19,151 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 29 selfloop transitions, 6 changer transitions 32/82 dead transitions. [2024-10-11 19:40:19,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 82 transitions, 461 flow [2024-10-11 19:40:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:40:19,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:40:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-10-11 19:40:19,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2024-10-11 19:40:19,154 INFO L175 Difference]: Start difference. First operand has 58 places, 37 transitions, 143 flow. Second operand 10 states and 256 transitions. [2024-10-11 19:40:19,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 82 transitions, 461 flow [2024-10-11 19:40:19,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 82 transitions, 395 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-10-11 19:40:19,165 INFO L231 Difference]: Finished difference. Result has 65 places, 39 transitions, 173 flow [2024-10-11 19:40:19,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=173, PETRI_PLACES=65, PETRI_TRANSITIONS=39} [2024-10-11 19:40:19,166 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-10-11 19:40:19,166 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 39 transitions, 173 flow [2024-10-11 19:40:19,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-10-11 19:40:19,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:19,167 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:19,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:40:19,167 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:19,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:19,168 INFO L85 PathProgramCache]: Analyzing trace with hash -655789445, now seen corresponding path program 1 times [2024-10-11 19:40:19,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:19,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699104486] [2024-10-11 19:40:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:19,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:19,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:19,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699104486] [2024-10-11 19:40:19,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699104486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:19,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:19,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:19,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587563240] [2024-10-11 19:40:19,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:19,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:19,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:19,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:19,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:19,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-10-11 19:40:19,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 39 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-10-11 19:40:19,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:19,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-10-11 19:40:19,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:19,660 INFO L124 PetriNetUnfolderBase]: 637/1340 cut-off events. [2024-10-11 19:40:19,661 INFO L125 PetriNetUnfolderBase]: For 2659/2661 co-relation queries the response was YES. [2024-10-11 19:40:19,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3949 conditions, 1340 events. 637/1340 cut-off events. For 2659/2661 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8952 event pairs, 156 based on Foata normal form. 43/1367 useless extension candidates. Maximal degree in co-relation 3927. Up to 518 conditions per place. [2024-10-11 19:40:19,673 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 34 selfloop transitions, 11 changer transitions 34/94 dead transitions. [2024-10-11 19:40:19,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 94 transitions, 615 flow [2024-10-11 19:40:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:40:19,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:40:19,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 268 transitions. [2024-10-11 19:40:19,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6232558139534884 [2024-10-11 19:40:19,676 INFO L175 Difference]: Start difference. First operand has 65 places, 39 transitions, 173 flow. Second operand 10 states and 268 transitions. [2024-10-11 19:40:19,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 94 transitions, 615 flow [2024-10-11 19:40:19,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 94 transitions, 563 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-10-11 19:40:19,688 INFO L231 Difference]: Finished difference. Result has 69 places, 43 transitions, 238 flow [2024-10-11 19:40:19,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=238, PETRI_PLACES=69, PETRI_TRANSITIONS=43} [2024-10-11 19:40:19,689 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-10-11 19:40:19,689 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 43 transitions, 238 flow [2024-10-11 19:40:19,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-10-11 19:40:19,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:19,690 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:19,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:40:19,691 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:19,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash 691510508, now seen corresponding path program 1 times [2024-10-11 19:40:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:19,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892768248] [2024-10-11 19:40:19,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:19,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:19,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:19,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892768248] [2024-10-11 19:40:19,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892768248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:19,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:19,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:19,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573858353] [2024-10-11 19:40:19,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:19,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:19,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:19,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:19,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:40:19,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 43 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-10-11 19:40:19,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:19,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:40:19,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:20,299 INFO L124 PetriNetUnfolderBase]: 965/1972 cut-off events. [2024-10-11 19:40:20,300 INFO L125 PetriNetUnfolderBase]: For 4984/4991 co-relation queries the response was YES. [2024-10-11 19:40:20,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6082 conditions, 1972 events. 965/1972 cut-off events. For 4984/4991 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 14156 event pairs, 95 based on Foata normal form. 57/2015 useless extension candidates. Maximal degree in co-relation 6057. Up to 443 conditions per place. [2024-10-11 19:40:20,319 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 50 selfloop transitions, 19 changer transitions 54/137 dead transitions. [2024-10-11 19:40:20,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 137 transitions, 1089 flow [2024-10-11 19:40:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 19:40:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 19:40:20,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 344 transitions. [2024-10-11 19:40:20,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-10-11 19:40:20,322 INFO L175 Difference]: Start difference. First operand has 69 places, 43 transitions, 238 flow. Second operand 13 states and 344 transitions. [2024-10-11 19:40:20,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 137 transitions, 1089 flow [2024-10-11 19:40:20,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 137 transitions, 983 flow, removed 53 selfloop flow, removed 8 redundant places. [2024-10-11 19:40:20,339 INFO L231 Difference]: Finished difference. Result has 79 places, 55 transitions, 460 flow [2024-10-11 19:40:20,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=460, PETRI_PLACES=79, PETRI_TRANSITIONS=55} [2024-10-11 19:40:20,340 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2024-10-11 19:40:20,341 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 55 transitions, 460 flow [2024-10-11 19:40:20,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-10-11 19:40:20,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:20,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:20,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:40:20,342 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:20,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:20,343 INFO L85 PathProgramCache]: Analyzing trace with hash -466866366, now seen corresponding path program 2 times [2024-10-11 19:40:20,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:20,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856168915] [2024-10-11 19:40:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:20,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:20,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856168915] [2024-10-11 19:40:20,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856168915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:20,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:20,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:40:20,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248069305] [2024-10-11 19:40:20,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:20,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:40:20,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:20,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:40:20,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:40:20,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:40:20,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 55 transitions, 460 flow. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 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) [2024-10-11 19:40:20,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:20,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:40:20,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:20,921 INFO L124 PetriNetUnfolderBase]: 966/1987 cut-off events. [2024-10-11 19:40:20,921 INFO L125 PetriNetUnfolderBase]: For 10153/10184 co-relation queries the response was YES. [2024-10-11 19:40:20,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7406 conditions, 1987 events. 966/1987 cut-off events. For 10153/10184 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 14485 event pairs, 194 based on Foata normal form. 58/2041 useless extension candidates. Maximal degree in co-relation 7375. Up to 444 conditions per place. [2024-10-11 19:40:20,941 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 35 selfloop transitions, 7 changer transitions 54/110 dead transitions. [2024-10-11 19:40:20,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 110 transitions, 1127 flow [2024-10-11 19:40:20,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:40:20,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:40:20,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2024-10-11 19:40:20,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2024-10-11 19:40:20,943 INFO L175 Difference]: Start difference. First operand has 79 places, 55 transitions, 460 flow. Second operand 9 states and 233 transitions. [2024-10-11 19:40:20,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 110 transitions, 1127 flow [2024-10-11 19:40:20,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 110 transitions, 997 flow, removed 65 selfloop flow, removed 6 redundant places. [2024-10-11 19:40:20,970 INFO L231 Difference]: Finished difference. Result has 79 places, 40 transitions, 257 flow [2024-10-11 19:40:20,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=257, PETRI_PLACES=79, PETRI_TRANSITIONS=40} [2024-10-11 19:40:20,972 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2024-10-11 19:40:20,972 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 40 transitions, 257 flow [2024-10-11 19:40:20,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 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) [2024-10-11 19:40:20,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:20,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:20,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:40:20,973 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:20,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:20,973 INFO L85 PathProgramCache]: Analyzing trace with hash 813330526, now seen corresponding path program 1 times [2024-10-11 19:40:20,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:20,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712609649] [2024-10-11 19:40:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:20,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:21,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:21,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712609649] [2024-10-11 19:40:21,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712609649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:21,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:21,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:40:21,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706737529] [2024-10-11 19:40:21,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:21,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:40:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:21,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:40:21,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:40:21,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:40:21,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 40 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-10-11 19:40:21,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:21,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:40:21,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:21,282 INFO L124 PetriNetUnfolderBase]: 851/1671 cut-off events. [2024-10-11 19:40:21,283 INFO L125 PetriNetUnfolderBase]: For 2239/2318 co-relation queries the response was YES. [2024-10-11 19:40:21,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4107 conditions, 1671 events. 851/1671 cut-off events. For 2239/2318 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10949 event pairs, 198 based on Foata normal form. 67/1645 useless extension candidates. Maximal degree in co-relation 4083. Up to 783 conditions per place. [2024-10-11 19:40:21,300 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 27 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-10-11 19:40:21,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 55 transitions, 355 flow [2024-10-11 19:40:21,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:40:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:40:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-10-11 19:40:21,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2024-10-11 19:40:21,302 INFO L175 Difference]: Start difference. First operand has 79 places, 40 transitions, 257 flow. Second operand 4 states and 118 transitions. [2024-10-11 19:40:21,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 55 transitions, 355 flow [2024-10-11 19:40:21,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 55 transitions, 260 flow, removed 15 selfloop flow, removed 18 redundant places. [2024-10-11 19:40:21,309 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 200 flow [2024-10-11 19:40:21,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2024-10-11 19:40:21,310 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 15 predicate places. [2024-10-11 19:40:21,310 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 200 flow [2024-10-11 19:40:21,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-10-11 19:40:21,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:21,311 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:21,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:40:21,311 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:21,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:21,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1514334109, now seen corresponding path program 1 times [2024-10-11 19:40:21,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:21,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810358174] [2024-10-11 19:40:21,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:21,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:21,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:21,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810358174] [2024-10-11 19:40:21,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810358174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:21,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:21,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:40:21,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666162659] [2024-10-11 19:40:21,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:21,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:40:21,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:21,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:40:21,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:40:21,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:40:21,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 200 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-11 19:40:21,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:21,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:40:21,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:21,595 INFO L124 PetriNetUnfolderBase]: 694/1368 cut-off events. [2024-10-11 19:40:21,595 INFO L125 PetriNetUnfolderBase]: For 629/1005 co-relation queries the response was YES. [2024-10-11 19:40:21,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3457 conditions, 1368 events. 694/1368 cut-off events. For 629/1005 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 8234 event pairs, 69 based on Foata normal form. 79/1378 useless extension candidates. Maximal degree in co-relation 3444. Up to 544 conditions per place. [2024-10-11 19:40:21,606 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 34 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2024-10-11 19:40:21,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 347 flow [2024-10-11 19:40:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:40:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:40:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-10-11 19:40:21,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6930232558139535 [2024-10-11 19:40:21,608 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 200 flow. Second operand 5 states and 149 transitions. [2024-10-11 19:40:21,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 347 flow [2024-10-11 19:40:21,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 65 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:40:21,611 INFO L231 Difference]: Finished difference. Result has 67 places, 48 transitions, 252 flow [2024-10-11 19:40:21,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=252, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2024-10-11 19:40:21,612 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-10-11 19:40:21,612 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 48 transitions, 252 flow [2024-10-11 19:40:21,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-11 19:40:21,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:21,613 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:21,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:40:21,613 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:21,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:21,614 INFO L85 PathProgramCache]: Analyzing trace with hash -872338758, now seen corresponding path program 1 times [2024-10-11 19:40:21,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:21,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753580205] [2024-10-11 19:40:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:21,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:21,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:21,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753580205] [2024-10-11 19:40:21,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753580205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:21,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:21,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:40:21,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564942635] [2024-10-11 19:40:21,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:21,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:21,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:21,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:21,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:21,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:40:21,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 48 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-10-11 19:40:21,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:21,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:40:21,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:21,919 INFO L124 PetriNetUnfolderBase]: 526/1000 cut-off events. [2024-10-11 19:40:21,920 INFO L125 PetriNetUnfolderBase]: For 1589/2375 co-relation queries the response was YES. [2024-10-11 19:40:21,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3107 conditions, 1000 events. 526/1000 cut-off events. For 1589/2375 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5463 event pairs, 25 based on Foata normal form. 74/1017 useless extension candidates. Maximal degree in co-relation 3092. Up to 400 conditions per place. [2024-10-11 19:40:21,927 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 33 selfloop transitions, 11 changer transitions 0/67 dead transitions. [2024-10-11 19:40:21,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 389 flow [2024-10-11 19:40:21,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:40:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:40:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2024-10-11 19:40:21,929 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 19:40:21,929 INFO L175 Difference]: Start difference. First operand has 67 places, 48 transitions, 252 flow. Second operand 6 states and 172 transitions. [2024-10-11 19:40:21,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 389 flow [2024-10-11 19:40:21,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 363 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-10-11 19:40:21,932 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 271 flow [2024-10-11 19:40:21,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2024-10-11 19:40:21,933 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-10-11 19:40:21,933 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 271 flow [2024-10-11 19:40:21,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-10-11 19:40:21,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:40:21,934 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:21,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:40:21,934 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:40:21,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:40:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash -862644968, now seen corresponding path program 1 times [2024-10-11 19:40:21,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:40:21,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755854271] [2024-10-11 19:40:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:40:21,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:40:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:40:22,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:40:22,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:40:22,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755854271] [2024-10-11 19:40:22,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755854271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:40:22,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:40:22,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:40:22,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989885176] [2024-10-11 19:40:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:40:22,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:40:22,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:40:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:40:22,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:40:22,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:40:22,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-10-11 19:40:22,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:40:22,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:40:22,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:40:22,312 INFO L124 PetriNetUnfolderBase]: 502/1077 cut-off events. [2024-10-11 19:40:22,312 INFO L125 PetriNetUnfolderBase]: For 2017/2131 co-relation queries the response was YES. [2024-10-11 19:40:22,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3248 conditions, 1077 events. 502/1077 cut-off events. For 2017/2131 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6743 event pairs, 143 based on Foata normal form. 16/956 useless extension candidates. Maximal degree in co-relation 3234. Up to 472 conditions per place. [2024-10-11 19:40:22,319 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-10-11 19:40:22,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 73 transitions, 447 flow [2024-10-11 19:40:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:40:22,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:40:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 174 transitions. [2024-10-11 19:40:22,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5780730897009967 [2024-10-11 19:40:22,321 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 271 flow. Second operand 7 states and 174 transitions. [2024-10-11 19:40:22,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 73 transitions, 447 flow [2024-10-11 19:40:22,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 423 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-10-11 19:40:22,326 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2024-10-11 19:40:22,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2024-10-11 19:40:22,326 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-10-11 19:40:22,327 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2024-10-11 19:40:22,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-10-11 19:40:22,332 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-11 19:40:22,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-11 19:40:22,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-11 19:40:22,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-11 19:40:22,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-11 19:40:22,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:40:22,333 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:40:22,337 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:40:22,339 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:40:22,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:40:22 BasicIcfg [2024-10-11 19:40:22,344 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:40:22,345 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:40:22,345 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:40:22,345 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:40:22,346 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:40:16" (3/4) ... [2024-10-11 19:40:22,349 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:40:22,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 19:40:22,352 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 19:40:22,353 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 19:40:22,357 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-11 19:40:22,357 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-11 19:40:22,358 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-11 19:40:22,358 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 19:40:22,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:40:22,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:40:22,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:40:22,440 INFO L158 Benchmark]: Toolchain (without parser) took 6600.70ms. Allocated memory was 146.8MB in the beginning and 239.1MB in the end (delta: 92.3MB). Free memory was 91.1MB in the beginning and 186.2MB in the end (delta: -95.0MB). Peak memory consumption was 147.3kB. Max. memory is 16.1GB. [2024-10-11 19:40:22,441 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:40:22,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.68ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 68.8MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:40:22,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.39ms. Allocated memory is still 146.8MB. Free memory was 68.8MB in the beginning and 66.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:40:22,442 INFO L158 Benchmark]: Boogie Preprocessor took 39.27ms. Allocated memory is still 146.8MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:40:22,442 INFO L158 Benchmark]: RCFGBuilder took 466.54ms. Allocated memory is still 146.8MB. Free memory was 64.2MB in the beginning and 98.4MB in the end (delta: -34.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-10-11 19:40:22,443 INFO L158 Benchmark]: TraceAbstraction took 5434.15ms. Allocated memory was 146.8MB in the beginning and 239.1MB in the end (delta: 92.3MB). Free memory was 98.4MB in the beginning and 190.4MB in the end (delta: -91.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:40:22,443 INFO L158 Benchmark]: Witness Printer took 94.67ms. Allocated memory is still 239.1MB. Free memory was 190.4MB in the beginning and 186.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:40:22,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.68ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 68.8MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.39ms. Allocated memory is still 146.8MB. Free memory was 68.8MB in the beginning and 66.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.27ms. Allocated memory is still 146.8MB. Free memory was 66.7MB in the beginning and 64.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.54ms. Allocated memory is still 146.8MB. Free memory was 64.2MB in the beginning and 98.4MB in the end (delta: -34.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5434.15ms. Allocated memory was 146.8MB in the beginning and 239.1MB in the end (delta: 92.3MB). Free memory was 98.4MB in the beginning and 190.4MB in the end (delta: -91.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 94.67ms. Allocated memory is still 239.1MB. Free memory was 190.4MB in the beginning and 186.2MB 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: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 438 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 407 mSDsluCounter, 262 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 192 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 882 IncrementalHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 70 mSDtfsCounter, 882 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=5, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 805 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 19:40:22,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE