./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/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:23:49,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:23:49,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:23:49,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:23:49,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:23:49,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:23:49,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:23:49,155 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:23:49,155 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:23:49,156 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:23:49,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:23:49,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:23:49,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:23:49,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:23:49,157 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:23:49,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:23:49,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:23:49,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:23:49,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:23:49,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:23:49,163 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:23:49,170 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:23:49,170 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:23:49,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:23:49,171 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:23:49,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:23:49,171 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:23:49,171 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:23:49,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:23:49,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:23:49,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:23:49,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:23:49,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:23:49,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:23:49,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:23:49,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:23:49,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:23:49,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:23:49,173 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:23:49,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:23:49,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:23:49,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:23:49,173 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b [2024-10-13 12:23:49,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:23:49,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:23:49,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:23:49,533 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:23:49,534 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:23:49,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-13 12:23:51,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:23:51,466 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:23:51,467 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-13 12:23:51,502 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be99e50c/c6dfaf7bc59f45068ba66d5c7f404636/FLAG3fbfd99b6 [2024-10-13 12:23:51,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be99e50c/c6dfaf7bc59f45068ba66d5c7f404636 [2024-10-13 12:23:51,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:23:51,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:23:51,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:23:51,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:23:51,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:23:51,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:23:51" (1/1) ... [2024-10-13 12:23:51,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668a1879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:51, skipping insertion in model container [2024-10-13 12:23:51,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:23:51" (1/1) ... [2024-10-13 12:23:51,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:23:52,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:23:52,188 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:23:52,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:23:52,269 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:23:52,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52 WrapperNode [2024-10-13 12:23:52,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:23:52,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:23:52,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:23:52,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:23:52,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,330 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-10-13 12:23:52,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:23:52,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:23:52,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:23:52,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:23:52,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,375 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]. [2024-10-13 12:23:52,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,398 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:23:52,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:23:52,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:23:52,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:23:52,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (1/1) ... [2024-10-13 12:23:52,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:23:52,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:23:52,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:23:52,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:23:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:23:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:23:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 12:23:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 12:23:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 12:23:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 12:23:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 12:23:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 12:23:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:23:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:23:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:23:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:23:52,477 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:23:52,612 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:23:52,615 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:23:52,820 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:23:52,821 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:23:52,925 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:23:52,926 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:23:52,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:23:52 BoogieIcfgContainer [2024-10-13 12:23:52,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:23:52,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:23:52,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:23:52,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:23:52,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:23:51" (1/3) ... [2024-10-13 12:23:52,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78aa74b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:23:52, skipping insertion in model container [2024-10-13 12:23:52,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:52" (2/3) ... [2024-10-13 12:23:52,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78aa74b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:23:52, skipping insertion in model container [2024-10-13 12:23:52,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:23:52" (3/3) ... [2024-10-13 12:23:52,942 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-13 12:23:52,961 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:23:52,962 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 12:23:52,962 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:23:53,005 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 12:23:53,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-10-13 12:23:53,066 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-13 12:23:53,066 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:23:53,070 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 73 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. [2024-10-13 12:23:53,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-10-13 12:23:53,073 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-10-13 12:23:53,087 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:23:53,099 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;@140e72fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:23:53,099 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-13 12:23:53,119 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:23:53,120 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-10-13 12:23:53,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:23:53,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:53,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:53,122 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)] === [2024-10-13 12:23:53,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:53,130 INFO L85 PathProgramCache]: Analyzing trace with hash -531251803, now seen corresponding path program 1 times [2024-10-13 12:23:53,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:53,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499687075] [2024-10-13 12:23:53,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:53,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:53,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:53,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499687075] [2024-10-13 12:23:53,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499687075] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:53,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:53,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:23:53,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347340801] [2024-10-13 12:23:53,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:53,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:23:53,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:53,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:23:53,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:23:53,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-10-13 12:23:53,485 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) [2024-10-13 12:23:53,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:53,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-10-13 12:23:53,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:53,573 INFO L124 PetriNetUnfolderBase]: 75/218 cut-off events. [2024-10-13 12:23:53,574 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:23:53,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 218 events. 75/218 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1192 event pairs, 75 based on Foata normal form. 24/223 useless extension candidates. Maximal degree in co-relation 362. Up to 136 conditions per place. [2024-10-13 12:23:53,580 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-10-13 12:23:53,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-10-13 12:23:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:23:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:23:53,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-10-13 12:23:53,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-10-13 12:23:53,591 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-10-13 12:23:53,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-10-13 12:23:53,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 12:23:53,595 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-10-13 12:23:53,597 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} [2024-10-13 12:23:53,600 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-10-13 12:23:53,600 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-10-13 12:23:53,600 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) [2024-10-13 12:23:53,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:53,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:53,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:23:53,601 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)] === [2024-10-13 12:23:53,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash -531250248, now seen corresponding path program 1 times [2024-10-13 12:23:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:53,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158883212] [2024-10-13 12:23:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:53,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:53,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158883212] [2024-10-13 12:23:53,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158883212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:53,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:53,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:23:53,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350108773] [2024-10-13 12:23:53,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:53,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:23:53,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:53,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:23:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:23:53,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-10-13 12:23:53,972 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) [2024-10-13 12:23:53,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:53,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-10-13 12:23:53,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:54,346 INFO L124 PetriNetUnfolderBase]: 761/1451 cut-off events. [2024-10-13 12:23:54,347 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:23:54,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2699 conditions, 1451 events. 761/1451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 10217 event pairs, 226 based on Foata normal form. 0/1388 useless extension candidates. Maximal degree in co-relation 2693. Up to 491 conditions per place. [2024-10-13 12:23:54,371 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 27 selfloop transitions, 5 changer transitions 45/92 dead transitions. [2024-10-13 12:23:54,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 92 transitions, 350 flow [2024-10-13 12:23:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:23:54,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:23:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 250 transitions. [2024-10-13 12:23:54,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6459948320413437 [2024-10-13 12:23:54,378 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 250 transitions. [2024-10-13 12:23:54,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 92 transitions, 350 flow [2024-10-13 12:23:54,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 92 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:23:54,383 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 126 flow [2024-10-13 12:23:54,383 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=126, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2024-10-13 12:23:54,385 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2024-10-13 12:23:54,385 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 126 flow [2024-10-13 12:23:54,385 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) [2024-10-13 12:23:54,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:54,385 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:54,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:23:54,386 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)] === [2024-10-13 12:23:54,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:54,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2080988935, now seen corresponding path program 1 times [2024-10-13 12:23:54,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:54,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027322135] [2024-10-13 12:23:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:54,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:54,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:54,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:54,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027322135] [2024-10-13 12:23:54,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027322135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:54,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:54,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:23:54,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681932808] [2024-10-13 12:23:54,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:54,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:54,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:54,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:54,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:54,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-10-13 12:23:54,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 126 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) [2024-10-13 12:23:54,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:54,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-10-13 12:23:54,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:54,960 INFO L124 PetriNetUnfolderBase]: 507/1088 cut-off events. [2024-10-13 12:23:54,961 INFO L125 PetriNetUnfolderBase]: For 990/990 co-relation queries the response was YES. [2024-10-13 12:23:54,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2765 conditions, 1088 events. 507/1088 cut-off events. For 990/990 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7773 event pairs, 87 based on Foata normal form. 32/1096 useless extension candidates. Maximal degree in co-relation 2752. Up to 353 conditions per place. [2024-10-13 12:23:54,968 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 28 selfloop transitions, 6 changer transitions 30/79 dead transitions. [2024-10-13 12:23:54,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 79 transitions, 429 flow [2024-10-13 12:23:54,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:23:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:23:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-10-13 12:23:54,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2024-10-13 12:23:54,971 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 126 flow. Second operand 10 states and 256 transitions. [2024-10-13 12:23:54,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 79 transitions, 429 flow [2024-10-13 12:23:54,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 79 transitions, 391 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-10-13 12:23:54,978 INFO L231 Difference]: Finished difference. Result has 62 places, 37 transitions, 151 flow [2024-10-13 12:23:54,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=151, PETRI_PLACES=62, PETRI_TRANSITIONS=37} [2024-10-13 12:23:54,978 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 15 predicate places. [2024-10-13 12:23:54,979 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 37 transitions, 151 flow [2024-10-13 12:23:54,979 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) [2024-10-13 12:23:54,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:54,979 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:54,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:23:54,979 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)] === [2024-10-13 12:23:54,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash -498146729, now seen corresponding path program 1 times [2024-10-13 12:23:54,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:54,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626913116] [2024-10-13 12:23:54,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:54,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:55,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:55,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:55,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626913116] [2024-10-13 12:23:55,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626913116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:55,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:55,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:23:55,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150196400] [2024-10-13 12:23:55,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:55,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:55,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:55,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:55,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:55,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 43 [2024-10-13 12:23:55,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 37 transitions, 151 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) [2024-10-13 12:23:55,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:55,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 43 [2024-10-13 12:23:55,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:55,333 INFO L124 PetriNetUnfolderBase]: 480/1046 cut-off events. [2024-10-13 12:23:55,333 INFO L125 PetriNetUnfolderBase]: For 1868/1870 co-relation queries the response was YES. [2024-10-13 12:23:55,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2926 conditions, 1046 events. 480/1046 cut-off events. For 1868/1870 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 7328 event pairs, 61 based on Foata normal form. 38/1068 useless extension candidates. Maximal degree in co-relation 2907. Up to 394 conditions per place. [2024-10-13 12:23:55,340 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 30 selfloop transitions, 7 changer transitions 30/82 dead transitions. [2024-10-13 12:23:55,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 82 transitions, 492 flow [2024-10-13 12:23:55,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:23:55,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:23:55,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 259 transitions. [2024-10-13 12:23:55,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6023255813953489 [2024-10-13 12:23:55,342 INFO L175 Difference]: Start difference. First operand has 62 places, 37 transitions, 151 flow. Second operand 10 states and 259 transitions. [2024-10-13 12:23:55,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 82 transitions, 492 flow [2024-10-13 12:23:55,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 426 flow, removed 24 selfloop flow, removed 8 redundant places. [2024-10-13 12:23:55,348 INFO L231 Difference]: Finished difference. Result has 64 places, 38 transitions, 166 flow [2024-10-13 12:23:55,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=166, PETRI_PLACES=64, PETRI_TRANSITIONS=38} [2024-10-13 12:23:55,349 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2024-10-13 12:23:55,349 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 38 transitions, 166 flow [2024-10-13 12:23:55,350 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) [2024-10-13 12:23:55,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:55,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:55,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:23:55,350 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)] === [2024-10-13 12:23:55,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:55,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1243484488, now seen corresponding path program 1 times [2024-10-13 12:23:55,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:55,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753081202] [2024-10-13 12:23:55,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:55,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:55,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:55,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753081202] [2024-10-13 12:23:55,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753081202] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:55,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:55,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:23:55,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683823066] [2024-10-13 12:23:55,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:55,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:55,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:55,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:55,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:55,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-13 12:23:55,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 38 transitions, 166 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) [2024-10-13 12:23:55,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:55,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-13 12:23:55,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:55,795 INFO L124 PetriNetUnfolderBase]: 834/1716 cut-off events. [2024-10-13 12:23:55,796 INFO L125 PetriNetUnfolderBase]: For 3131/3133 co-relation queries the response was YES. [2024-10-13 12:23:55,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4842 conditions, 1716 events. 834/1716 cut-off events. For 3131/3133 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11786 event pairs, 61 based on Foata normal form. 46/1756 useless extension candidates. Maximal degree in co-relation 4822. Up to 476 conditions per place. [2024-10-13 12:23:55,808 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 50 selfloop transitions, 18 changer transitions 46/128 dead transitions. [2024-10-13 12:23:55,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 128 transitions, 869 flow [2024-10-13 12:23:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 12:23:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 12:23:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 339 transitions. [2024-10-13 12:23:55,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6064400715563506 [2024-10-13 12:23:55,810 INFO L175 Difference]: Start difference. First operand has 64 places, 38 transitions, 166 flow. Second operand 13 states and 339 transitions. [2024-10-13 12:23:55,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 128 transitions, 869 flow [2024-10-13 12:23:55,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 128 transitions, 741 flow, removed 41 selfloop flow, removed 8 redundant places. [2024-10-13 12:23:55,821 INFO L231 Difference]: Finished difference. Result has 74 places, 51 transitions, 350 flow [2024-10-13 12:23:55,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=350, PETRI_PLACES=74, PETRI_TRANSITIONS=51} [2024-10-13 12:23:55,822 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-10-13 12:23:55,822 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 51 transitions, 350 flow [2024-10-13 12:23:55,823 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) [2024-10-13 12:23:55,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:55,823 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:55,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:23:55,823 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)] === [2024-10-13 12:23:55,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:55,824 INFO L85 PathProgramCache]: Analyzing trace with hash -742565352, now seen corresponding path program 2 times [2024-10-13 12:23:55,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:55,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350860472] [2024-10-13 12:23:55,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:55,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:55,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:55,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350860472] [2024-10-13 12:23:55,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350860472] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:55,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:55,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:23:55,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976214616] [2024-10-13 12:23:55,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:55,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 12:23:55,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:55,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 12:23:55,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 12:23:55,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-13 12:23:55,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 51 transitions, 350 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) [2024-10-13 12:23:55,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:55,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-13 12:23:55,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:56,214 INFO L124 PetriNetUnfolderBase]: 905/1870 cut-off events. [2024-10-13 12:23:56,214 INFO L125 PetriNetUnfolderBase]: For 8329/8329 co-relation queries the response was YES. [2024-10-13 12:23:56,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6556 conditions, 1870 events. 905/1870 cut-off events. For 8329/8329 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 13515 event pairs, 129 based on Foata normal form. 45/1879 useless extension candidates. Maximal degree in co-relation 6529. Up to 486 conditions per place. [2024-10-13 12:23:56,225 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 35 selfloop transitions, 9 changer transitions 48/106 dead transitions. [2024-10-13 12:23:56,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 106 transitions, 941 flow [2024-10-13 12:23:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:23:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:23:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 234 transitions. [2024-10-13 12:23:56,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6046511627906976 [2024-10-13 12:23:56,227 INFO L175 Difference]: Start difference. First operand has 74 places, 51 transitions, 350 flow. Second operand 9 states and 234 transitions. [2024-10-13 12:23:56,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 106 transitions, 941 flow [2024-10-13 12:23:56,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 827 flow, removed 57 selfloop flow, removed 6 redundant places. [2024-10-13 12:23:56,243 INFO L231 Difference]: Finished difference. Result has 74 places, 40 transitions, 240 flow [2024-10-13 12:23:56,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=240, PETRI_PLACES=74, PETRI_TRANSITIONS=40} [2024-10-13 12:23:56,244 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-10-13 12:23:56,244 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 40 transitions, 240 flow [2024-10-13 12:23:56,244 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) [2024-10-13 12:23:56,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:56,244 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] [2024-10-13 12:23:56,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 12:23:56,244 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)] === [2024-10-13 12:23:56,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:56,245 INFO L85 PathProgramCache]: Analyzing trace with hash 668720693, now seen corresponding path program 1 times [2024-10-13 12:23:56,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:56,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417383622] [2024-10-13 12:23:56,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:56,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:56,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:56,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417383622] [2024-10-13 12:23:56,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417383622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:56,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:56,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:23:56,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669472298] [2024-10-13 12:23:56,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:56,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:23:56,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:56,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:23:56,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:23:56,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-13 12:23:56,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 40 transitions, 240 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) [2024-10-13 12:23:56,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:56,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-13 12:23:56,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:56,484 INFO L124 PetriNetUnfolderBase]: 829/1616 cut-off events. [2024-10-13 12:23:56,485 INFO L125 PetriNetUnfolderBase]: For 1952/2009 co-relation queries the response was YES. [2024-10-13 12:23:56,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3945 conditions, 1616 events. 829/1616 cut-off events. For 1952/2009 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 10485 event pairs, 175 based on Foata normal form. 74/1613 useless extension candidates. Maximal degree in co-relation 3924. Up to 782 conditions per place. [2024-10-13 12:23:56,495 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 27 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-10-13 12:23:56,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 55 transitions, 338 flow [2024-10-13 12:23:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:23:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:23:56,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-10-13 12:23:56,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2024-10-13 12:23:56,496 INFO L175 Difference]: Start difference. First operand has 74 places, 40 transitions, 240 flow. Second operand 4 states and 118 transitions. [2024-10-13 12:23:56,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 55 transitions, 338 flow [2024-10-13 12:23:56,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 267 flow, removed 11 selfloop flow, removed 14 redundant places. [2024-10-13 12:23:56,502 INFO L231 Difference]: Finished difference. Result has 61 places, 44 transitions, 207 flow [2024-10-13 12:23:56,502 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=56, 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=207, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2024-10-13 12:23:56,503 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 14 predicate places. [2024-10-13 12:23:56,503 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 207 flow [2024-10-13 12:23:56,503 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) [2024-10-13 12:23:56,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:56,503 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] [2024-10-13 12:23:56,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 12:23:56,504 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)] === [2024-10-13 12:23:56,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:56,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1279998520, now seen corresponding path program 1 times [2024-10-13 12:23:56,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:56,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578501387] [2024-10-13 12:23:56,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:56,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:56,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:56,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578501387] [2024-10-13 12:23:56,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578501387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:56,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:56,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:23:56,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648679660] [2024-10-13 12:23:56,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:56,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:23:56,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:56,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:23:56,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:23:56,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-13 12:23:56,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 207 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) [2024-10-13 12:23:56,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:56,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-13 12:23:56,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:56,707 INFO L124 PetriNetUnfolderBase]: 664/1309 cut-off events. [2024-10-13 12:23:56,707 INFO L125 PetriNetUnfolderBase]: For 666/982 co-relation queries the response was YES. [2024-10-13 12:23:56,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3323 conditions, 1309 events. 664/1309 cut-off events. For 666/982 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7737 event pairs, 57 based on Foata normal form. 75/1324 useless extension candidates. Maximal degree in co-relation 3309. Up to 520 conditions per place. [2024-10-13 12:23:56,715 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 34 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2024-10-13 12:23:56,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 354 flow [2024-10-13 12:23:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:23:56,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:23:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-10-13 12:23:56,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6930232558139535 [2024-10-13 12:23:56,716 INFO L175 Difference]: Start difference. First operand has 61 places, 44 transitions, 207 flow. Second operand 5 states and 149 transitions. [2024-10-13 12:23:56,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 65 transitions, 354 flow [2024-10-13 12:23:56,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 65 transitions, 344 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 12:23:56,719 INFO L231 Difference]: Finished difference. Result has 65 places, 48 transitions, 252 flow [2024-10-13 12:23:56,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=59, 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=65, PETRI_TRANSITIONS=48} [2024-10-13 12:23:56,720 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-10-13 12:23:56,720 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 48 transitions, 252 flow [2024-10-13 12:23:56,720 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) [2024-10-13 12:23:56,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:56,720 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] [2024-10-13 12:23:56,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 12:23:56,721 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)] === [2024-10-13 12:23:56,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:56,721 INFO L85 PathProgramCache]: Analyzing trace with hash -450704663, now seen corresponding path program 1 times [2024-10-13 12:23:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:56,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199331309] [2024-10-13 12:23:56,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:56,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:56,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:56,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199331309] [2024-10-13 12:23:56,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199331309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:56,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:56,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:23:56,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568045071] [2024-10-13 12:23:56,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:56,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:56,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:56,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:56,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:56,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-13 12:23:56,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 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) [2024-10-13 12:23:56,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:56,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-13 12:23:56,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:56,957 INFO L124 PetriNetUnfolderBase]: 500/949 cut-off events. [2024-10-13 12:23:56,957 INFO L125 PetriNetUnfolderBase]: For 1491/2128 co-relation queries the response was YES. [2024-10-13 12:23:56,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 949 events. 500/949 cut-off events. For 1491/2128 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4979 event pairs, 25 based on Foata normal form. 69/962 useless extension candidates. Maximal degree in co-relation 2926. Up to 376 conditions per place. [2024-10-13 12:23:56,962 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 33 selfloop transitions, 11 changer transitions 0/67 dead transitions. [2024-10-13 12:23:56,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 67 transitions, 389 flow [2024-10-13 12:23:56,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:23:56,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:23:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2024-10-13 12:23:56,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-13 12:23:56,963 INFO L175 Difference]: Start difference. First operand has 65 places, 48 transitions, 252 flow. Second operand 6 states and 172 transitions. [2024-10-13 12:23:56,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 67 transitions, 389 flow [2024-10-13 12:23:56,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 367 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-10-13 12:23:56,965 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 275 flow [2024-10-13 12:23:56,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=231, 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=275, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2024-10-13 12:23:56,966 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 22 predicate places. [2024-10-13 12:23:56,966 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 275 flow [2024-10-13 12:23:56,966 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) [2024-10-13 12:23:56,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:56,966 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] [2024-10-13 12:23:56,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 12:23:56,967 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)] === [2024-10-13 12:23:56,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:56,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1104501631, now seen corresponding path program 1 times [2024-10-13 12:23:56,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:56,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945193424] [2024-10-13 12:23:56,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:56,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:57,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:57,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945193424] [2024-10-13 12:23:57,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945193424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:57,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:57,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:23:57,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674916213] [2024-10-13 12:23:57,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:57,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:57,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:57,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:57,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:57,079 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-13 12:23:57,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 275 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) [2024-10-13 12:23:57,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:57,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-13 12:23:57,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:57,227 INFO L124 PetriNetUnfolderBase]: 491/1050 cut-off events. [2024-10-13 12:23:57,228 INFO L125 PetriNetUnfolderBase]: For 2076/2191 co-relation queries the response was YES. [2024-10-13 12:23:57,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3240 conditions, 1050 events. 491/1050 cut-off events. For 2076/2191 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6664 event pairs, 125 based on Foata normal form. 18/943 useless extension candidates. Maximal degree in co-relation 3224. Up to 453 conditions per place. [2024-10-13 12:23:57,233 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2024-10-13 12:23:57,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 70 transitions, 441 flow [2024-10-13 12:23:57,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:23:57,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 12:23:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 173 transitions. [2024-10-13 12:23:57,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.574750830564784 [2024-10-13 12:23:57,235 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 275 flow. Second operand 7 states and 173 transitions. [2024-10-13 12:23:57,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 70 transitions, 441 flow [2024-10-13 12:23:57,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 401 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-10-13 12:23:57,239 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2024-10-13 12:23:57,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=61, 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=67, PETRI_TRANSITIONS=0} [2024-10-13 12:23:57,240 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-10-13 12:23:57,240 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2024-10-13 12:23:57,240 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) [2024-10-13 12:23:57,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-13 12:23:57,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-13 12:23:57,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-13 12:23:57,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-13 12:23:57,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-13 12:23:57,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 12:23:57,244 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:57,247 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 12:23:57,247 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:23:57,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:23:57 BasicIcfg [2024-10-13 12:23:57,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:23:57,252 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:23:57,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:23:57,252 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:23:57,253 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:23:52" (3/4) ... [2024-10-13 12:23:57,254 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:23:57,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-13 12:23:57,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-13 12:23:57,257 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-13 12:23:57,261 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-13 12:23:57,261 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-13 12:23:57,261 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-13 12:23:57,261 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 12:23:57,324 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:23:57,324 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:23:57,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:23:57,325 INFO L158 Benchmark]: Toolchain (without parser) took 5485.32ms. Allocated memory was 184.5MB in the beginning and 255.9MB in the end (delta: 71.3MB). Free memory was 116.1MB in the beginning and 92.4MB in the end (delta: 23.7MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. [2024-10-13 12:23:57,325 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 109.1MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:23:57,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.00ms. Allocated memory is still 184.5MB. Free memory was 115.8MB in the beginning and 148.5MB in the end (delta: -32.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 12:23:57,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.24ms. Allocated memory is still 184.5MB. Free memory was 148.5MB in the beginning and 147.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:23:57,326 INFO L158 Benchmark]: Boogie Preprocessor took 63.61ms. Allocated memory is still 184.5MB. Free memory was 147.1MB in the beginning and 144.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:23:57,326 INFO L158 Benchmark]: RCFGBuilder took 528.73ms. Allocated memory is still 184.5MB. Free memory was 144.3MB in the beginning and 124.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 12:23:57,326 INFO L158 Benchmark]: TraceAbstraction took 4320.94ms. Allocated memory was 184.5MB in the beginning and 255.9MB in the end (delta: 71.3MB). Free memory was 124.0MB in the beginning and 97.6MB in the end (delta: 26.3MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. [2024-10-13 12:23:57,326 INFO L158 Benchmark]: Witness Printer took 72.24ms. Allocated memory is still 255.9MB. Free memory was 96.6MB in the beginning and 92.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 12:23:57,328 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.07ms. Allocated memory is still 109.1MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.00ms. Allocated memory is still 184.5MB. Free memory was 115.8MB in the beginning and 148.5MB in the end (delta: -32.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.24ms. Allocated memory is still 184.5MB. Free memory was 148.5MB in the beginning and 147.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.61ms. Allocated memory is still 184.5MB. Free memory was 147.1MB in the beginning and 144.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.73ms. Allocated memory is still 184.5MB. Free memory was 144.3MB in the beginning and 124.0MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4320.94ms. Allocated memory was 184.5MB in the beginning and 255.9MB in the end (delta: 71.3MB). Free memory was 124.0MB in the beginning and 97.6MB in the end (delta: 26.3MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. * Witness Printer took 72.24ms. Allocated memory is still 255.9MB. Free memory was 96.6MB in the beginning and 92.4MB 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: 773]: 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: 4.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 464 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 416 mSDsluCounter, 263 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 181 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 906 IncrementalHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 82 mSDtfsCounter, 906 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 202 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 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! [2024-10-13 12:23:57,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE