./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:59:16,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:59:16,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-12 00:59:16,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:59:16,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:59:16,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:59:16,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:59:16,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:59:16,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:59:16,755 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:59:16,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:59:16,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:59:16,756 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:59:16,756 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:59:16,757 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:59:16,757 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:59:16,757 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:59:16,757 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:59:16,758 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:59:16,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:59:16,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:59:16,759 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:59:16,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:59:16,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:59:16,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:59:16,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:59:16,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:59:16,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:59:16,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:59:16,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:59:16,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:59:16,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:59:16,765 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:59:16,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:59:16,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:59:16,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:59:16,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:59:16,766 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:59:16,767 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:59:16,767 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 [2024-10-12 00:59:16,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:59:16,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:59:16,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:59:16,984 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:59:16,985 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:59:16,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c [2024-10-12 00:59:18,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:59:18,485 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:59:18,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c [2024-10-12 00:59:18,491 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ff4f850b5/7fed002ef3374585b395ec14f739e648/FLAGec5b2a0f6 [2024-10-12 00:59:18,909 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ff4f850b5/7fed002ef3374585b395ec14f739e648 [2024-10-12 00:59:18,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:59:18,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:59:18,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:59:18,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:59:18,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:59:18,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:59:18" (1/1) ... [2024-10-12 00:59:18,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2558d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:18, skipping insertion in model container [2024-10-12 00:59:18,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:59:18" (1/1) ... [2024-10-12 00:59:18,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:59:19,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:59:19,086 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:59:19,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:59:19,115 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:59:19,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19 WrapperNode [2024-10-12 00:59:19,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:59:19,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:59:19,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:59:19,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:59:19,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,142 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-10-12 00:59:19,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:59:19,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:59:19,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:59:19,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:59:19,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,160 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]. [2024-10-12 00:59:19,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,165 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:59:19,166 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:59:19,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:59:19,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:59:19,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (1/1) ... [2024-10-12 00:59:19,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:19,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:19,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:19,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:59:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:59:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:59:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:59:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:59:19,270 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2024-10-12 00:59:19,270 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2024-10-12 00:59:19,318 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:59:19,320 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:59:19,398 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-10-12 00:59:19,398 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:59:19,409 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:59:19,410 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 00:59:19,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:59:19 BoogieIcfgContainer [2024-10-12 00:59:19,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:59:19,411 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:59:19,411 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:59:19,414 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:59:19,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:59:19,414 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:59:18" (1/3) ... [2024-10-12 00:59:19,415 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e53a9cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:59:19, skipping insertion in model container [2024-10-12 00:59:19,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:59:19,415 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:59:19" (2/3) ... [2024-10-12 00:59:19,416 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e53a9cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:59:19, skipping insertion in model container [2024-10-12 00:59:19,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:59:19,416 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:59:19" (3/3) ... [2024-10-12 00:59:19,417 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91-1.c [2024-10-12 00:59:19,453 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:59:19,453 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:59:19,453 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:59:19,453 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:59:19,454 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:59:19,454 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:59:19,454 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:59:19,454 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:59:19,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 00:59:19,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:59:19,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:59:19,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:59:19,474 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-12 00:59:19,474 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:59:19,475 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:59:19,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-12 00:59:19,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:59:19,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:59:19,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:59:19,476 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-12 00:59:19,476 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:59:19,481 INFO L745 eck$LassoCheckResult]: Stem: 15#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 14#L28true call main_#t~ret7#1 := f91(main_~x~0#1);< 12#$Ultimate##0true [2024-10-12 00:59:19,482 INFO L747 eck$LassoCheckResult]: Loop: 12#$Ultimate##0true ~x := #in~x; 8#L18true assume !(~x > 100); 10#L21true call #t~ret4 := f91(11 + ~x);< 12#$Ultimate##0true [2024-10-12 00:59:19,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:19,486 INFO L85 PathProgramCache]: Analyzing trace with hash 29879, now seen corresponding path program 1 times [2024-10-12 00:59:19,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:19,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920221416] [2024-10-12 00:59:19,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:19,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:19,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:19,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:19,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:19,580 INFO L85 PathProgramCache]: Analyzing trace with hash 46807, now seen corresponding path program 1 times [2024-10-12 00:59:19,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:19,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696791894] [2024-10-12 00:59:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:19,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:19,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:19,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:19,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash 890142305, now seen corresponding path program 1 times [2024-10-12 00:59:19,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:19,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690587443] [2024-10-12 00:59:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:19,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:19,612 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:19,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:19,701 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:19,705 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:19,706 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:19,706 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:19,706 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:59:19,706 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:19,706 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:19,706 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:19,706 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration1_Loop [2024-10-12 00:59:19,706 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:19,706 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:19,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:19,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:19,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:19,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:19,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:19,777 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:19,778 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:59:19,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:19,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:19,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:19,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:59:19,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:19,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:19,798 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:59:19,798 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:59:19,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-12 00:59:19,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:19,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:19,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:19,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:59:19,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:19,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:19,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:19,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:19,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:19,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:19,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:59:19,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:59:19,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:20,217 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:59:20,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-12 00:59:20,223 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:20,223 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:20,223 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:20,224 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:20,224 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:59:20,224 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:20,224 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:20,224 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:20,224 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration1_Loop [2024-10-12 00:59:20,224 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:20,224 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:20,225 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:20,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:20,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:20,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:20,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:20,282 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:20,286 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:59:20,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:20,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:20,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:20,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:59:20,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:20,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:20,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:20,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:20,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:20,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:20,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:20,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:20,310 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:59:20,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:20,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:20,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:20,324 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:20,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:59:20,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:20,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:20,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:20,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:20,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:20,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:20,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:20,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:20,341 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:59:20,344 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:59:20,344 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:59:20,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:20,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:20,367 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:20,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:59:20,370 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:59:20,370 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:59:20,370 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:59:20,371 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2024-10-12 00:59:20,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:20,386 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:59:20,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:20,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:59:20,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:20,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 00:59:20,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:20,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-12 00:59:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:20,622 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:59:20,624 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:59:20,713 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 43 transitions. Complement of second has 16 states. [2024-10-12 00:59:20,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:59:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2024-10-12 00:59:20,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2024-10-12 00:59:20,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:20,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-12 00:59:20,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:20,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-12 00:59:20,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:20,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2024-10-12 00:59:20,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:59:20,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 25 transitions. [2024-10-12 00:59:20,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-12 00:59:20,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-12 00:59:20,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2024-10-12 00:59:20,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:59:20,741 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-10-12 00:59:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2024-10-12 00:59:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2024-10-12 00:59:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:20,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-10-12 00:59:20,764 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-10-12 00:59:20,765 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-10-12 00:59:20,765 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:59:20,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2024-10-12 00:59:20,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:59:20,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:59:20,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:59:20,767 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:59:20,768 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:59:20,768 INFO L745 eck$LassoCheckResult]: Stem: 119#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 120#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 113#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 112#$Ultimate##0 ~x := #in~x; 114#L18 assume !(~x > 100); 110#L21 call #t~ret4 := f91(11 + ~x);< 115#$Ultimate##0 ~x := #in~x; 116#L18 assume ~x > 100;#res := ~x - 10; 123#f91FINAL assume true; 109#f91EXIT >#29#return; 111#L21-1 [2024-10-12 00:59:20,768 INFO L747 eck$LassoCheckResult]: Loop: 111#L21-1 call #t~ret5 := f91(#t~ret4);< 118#$Ultimate##0 ~x := #in~x; 125#L18 assume !(~x > 100); 117#L21 call #t~ret4 := f91(11 + ~x);< 118#$Ultimate##0 ~x := #in~x; 125#L18 assume ~x > 100;#res := ~x - 10; 122#f91FINAL assume true; 124#f91EXIT >#29#return; 111#L21-1 [2024-10-12 00:59:20,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:20,769 INFO L85 PathProgramCache]: Analyzing trace with hash -218206616, now seen corresponding path program 1 times [2024-10-12 00:59:20,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:20,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019889968] [2024-10-12 00:59:20,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:20,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:20,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:20,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:20,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:20,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1767505954, now seen corresponding path program 1 times [2024-10-12 00:59:20,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:20,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190130703] [2024-10-12 00:59:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:20,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:20,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:20,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:20,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:20,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1919740023, now seen corresponding path program 1 times [2024-10-12 00:59:20,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:20,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51909854] [2024-10-12 00:59:20,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:20,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:20,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:20,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:20,999 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:20,999 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:20,999 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:20,999 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:20,999 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:59:20,999 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:21,000 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:21,000 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:21,000 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration2_Loop [2024-10-12 00:59:21,000 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:21,000 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:21,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:21,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:21,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:21,051 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:21,052 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:59:21,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:21,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:21,055 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:21,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:59:21,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:21,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:21,071 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:59:21,071 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:59:21,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:21,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:21,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:21,085 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:21,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:59:21,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:21,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:21,105 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:59:21,106 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:59:21,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-12 00:59:21,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:21,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:21,123 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:21,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-12 00:59:21,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:21,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:21,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-12 00:59:21,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:21,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:21,168 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:21,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-12 00:59:21,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:59:21,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:33,213 INFO L403 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2024-10-12 00:59:33,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-12 00:59:33,226 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:33,226 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:33,226 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:33,226 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:33,226 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:59:33,226 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:33,226 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:33,226 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:33,226 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration2_Loop [2024-10-12 00:59:33,226 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:33,226 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:33,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:33,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:33,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:33,277 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:33,277 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:59:33,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:33,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:33,281 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:33,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-12 00:59:33,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:33,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:33,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:33,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:33,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:33,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:33,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:33,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:33,307 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:59:33,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-12 00:59:33,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:33,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:33,323 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:33,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-12 00:59:33,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:33,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:33,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:33,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:33,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:33,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:33,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:33,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:33,346 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:59:33,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:33,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:33,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:33,363 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:33,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:33,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-12 00:59:33,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:33,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:33,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:33,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:33,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:33,386 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:33,386 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:33,389 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:59:33,393 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:59:33,393 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:59:33,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:33,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:33,397 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:33,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-12 00:59:33,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:59:33,399 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:59:33,399 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:59:33,399 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2024-10-12 00:59:33,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-12 00:59:33,414 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:59:33,419 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2024-10-12 00:59:33,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:33,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:59:33,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:33,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-12 00:59:33,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:33,614 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-10-12 00:59:33,614 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 00:59:33,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 51 states and 73 transitions. Complement of second has 32 states. [2024-10-12 00:59:33,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-12 00:59:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-10-12 00:59:33,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 8 letters. [2024-10-12 00:59:33,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:33,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 8 letters. [2024-10-12 00:59:33,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:33,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 16 letters. [2024-10-12 00:59:33,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:33,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2024-10-12 00:59:33,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-12 00:59:33,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 62 transitions. [2024-10-12 00:59:33,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-10-12 00:59:33,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-10-12 00:59:33,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 62 transitions. [2024-10-12 00:59:33,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:59:33,772 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 62 transitions. [2024-10-12 00:59:33,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 62 transitions. [2024-10-12 00:59:33,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2024-10-12 00:59:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 10 states have call successors, (13), 7 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2024-10-12 00:59:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2024-10-12 00:59:33,777 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-10-12 00:59:33,777 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-10-12 00:59:33,777 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:59:33,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2024-10-12 00:59:33,778 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-10-12 00:59:33,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:59:33,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:59:33,779 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:59:33,779 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:59:33,779 INFO L745 eck$LassoCheckResult]: Stem: 316#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 317#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 311#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 315#$Ultimate##0 ~x := #in~x; 321#L18 assume !(~x > 100); 306#L21 call #t~ret4 := f91(11 + ~x);< 304#$Ultimate##0 ~x := #in~x; 308#L18 assume ~x > 100;#res := ~x - 10; 326#f91FINAL assume true; 325#f91EXIT >#29#return; 296#L21-1 call #t~ret5 := f91(#t~ret4);< 313#$Ultimate##0 ~x := #in~x; 328#L18 assume !(~x > 100); 302#L21 [2024-10-12 00:59:33,779 INFO L747 eck$LassoCheckResult]: Loop: 302#L21 call #t~ret4 := f91(11 + ~x);< 301#$Ultimate##0 ~x := #in~x; 303#L18 assume !(~x > 100); 302#L21 [2024-10-12 00:59:33,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:33,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1987218266, now seen corresponding path program 2 times [2024-10-12 00:59:33,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:33,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989227734] [2024-10-12 00:59:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:33,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:33,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:33,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:33,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash 57247, now seen corresponding path program 2 times [2024-10-12 00:59:33,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:33,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706207298] [2024-10-12 00:59:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:33,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:33,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:33,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:33,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:33,802 INFO L85 PathProgramCache]: Analyzing trace with hash -609818202, now seen corresponding path program 3 times [2024-10-12 00:59:33,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:33,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781543233] [2024-10-12 00:59:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:33,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:33,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 00:59:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:59:33,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:59:33,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781543233] [2024-10-12 00:59:33,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781543233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:59:33,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:59:33,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 00:59:33,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621792968] [2024-10-12 00:59:33,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:59:33,958 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:33,958 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:33,958 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:33,958 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:33,958 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:59:33,959 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:33,959 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:33,959 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:33,959 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration3_Loop [2024-10-12 00:59:33,959 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:33,959 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:33,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:33,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:33,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:33,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:33,994 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:33,994 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:59:33,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:33,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:34,000 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:34,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-12 00:59:34,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:34,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:34,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-12 00:59:34,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:34,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:34,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:34,076 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:34,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-12 00:59:34,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:59:34,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:46,271 INFO L403 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2024-10-12 00:59:46,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:46,286 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:46,286 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:46,286 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:46,286 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:46,286 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:59:46,286 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:46,286 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:46,286 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:46,286 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration3_Loop [2024-10-12 00:59:46,286 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:46,286 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:46,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:46,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:46,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:46,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:46,337 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:46,337 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:59:46,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:46,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:46,339 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:46,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-12 00:59:46,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:46,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:46,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:46,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:46,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:46,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:46,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:46,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:46,354 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:59:46,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:46,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:46,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:46,367 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:46,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-12 00:59:46,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:46,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:46,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:46,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:46,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:46,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:46,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:46,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:46,381 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:59:46,383 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:59:46,384 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:59:46,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:46,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:46,385 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:46,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-12 00:59:46,390 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:59:46,390 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:59:46,391 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:59:46,391 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_~x) = -2*f91_~x + 189 Supporting invariants [] [2024-10-12 00:59:46,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:46,403 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:59:46,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:46,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 00:59:46,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:46,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 00:59:46,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:46,570 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-10-12 00:59:46,570 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 00:59:46,628 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 43 states and 59 transitions. Complement of second has 13 states. [2024-10-12 00:59:46,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:46,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 00:59:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-10-12 00:59:46,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-10-12 00:59:46,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:46,630 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:59:46,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:46,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 00:59:46,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:46,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 00:59:46,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:46,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:46,844 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2024-10-12 00:59:46,844 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 00:59:46,895 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 43 states and 59 transitions. Complement of second has 13 states. [2024-10-12 00:59:46,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:46,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 00:59:46,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-10-12 00:59:46,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-10-12 00:59:46,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:46,897 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:59:46,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:46,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 00:59:46,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:46,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 00:59:46,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:47,017 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-10-12 00:59:47,017 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 00:59:47,073 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 71 states and 100 transitions. Complement of second has 16 states. [2024-10-12 00:59:47,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:47,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 00:59:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2024-10-12 00:59:47,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2024-10-12 00:59:47,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:47,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2024-10-12 00:59:47,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:47,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2024-10-12 00:59:47,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:47,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions. [2024-10-12 00:59:47,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-12 00:59:47,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 48 states and 74 transitions. [2024-10-12 00:59:47,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-10-12 00:59:47,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-10-12 00:59:47,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 74 transitions. [2024-10-12 00:59:47,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:59:47,080 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 74 transitions. [2024-10-12 00:59:47,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 74 transitions. [2024-10-12 00:59:47,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2024-10-12 00:59:47,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 11 states have call successors, (18), 9 states have call predecessors, (18), 5 states have return successors, (15), 6 states have call predecessors, (15), 8 states have call successors, (15) [2024-10-12 00:59:47,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2024-10-12 00:59:47,085 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 60 transitions. [2024-10-12 00:59:47,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:59:47,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 00:59:47,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:59:47,088 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-12 00:59:47,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:59:47,159 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2024-10-12 00:59:47,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2024-10-12 00:59:47,161 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-10-12 00:59:47,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 58 states and 75 transitions. [2024-10-12 00:59:47,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-10-12 00:59:47,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-10-12 00:59:47,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2024-10-12 00:59:47,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:59:47,163 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 75 transitions. [2024-10-12 00:59:47,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2024-10-12 00:59:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-10-12 00:59:47,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 37 states have internal predecessors, (37), 13 states have call successors, (18), 11 states have call predecessors, (18), 9 states have return successors, (19), 8 states have call predecessors, (19), 11 states have call successors, (19) [2024-10-12 00:59:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2024-10-12 00:59:47,167 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-10-12 00:59:47,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 00:59:47,168 INFO L425 stractBuchiCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-10-12 00:59:47,168 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:59:47,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 74 transitions. [2024-10-12 00:59:47,169 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-10-12 00:59:47,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:59:47,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:59:47,170 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-12 00:59:47,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2024-10-12 00:59:47,171 INFO L745 eck$LassoCheckResult]: Stem: 853#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 854#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 849#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 852#$Ultimate##0 ~x := #in~x; 876#L18 assume !(~x > 100); 869#L21 call #t~ret4 := f91(11 + ~x);< 871#$Ultimate##0 ~x := #in~x; 873#L18 assume !(~x > 100); 868#L21 call #t~ret4 := f91(11 + ~x);< 872#$Ultimate##0 ~x := #in~x; 875#L18 assume ~x > 100;#res := ~x - 10; 874#f91FINAL assume true; 870#f91EXIT >#29#return; 843#L21-1 call #t~ret5 := f91(#t~ret4);< 842#$Ultimate##0 ~x := #in~x; 844#L18 assume ~x > 100;#res := ~x - 10; 861#f91FINAL assume true; 891#f91EXIT >#31#return; 838#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 888#f91FINAL assume true; 887#f91EXIT >#29#return; 836#L21-1 call #t~ret5 := f91(#t~ret4);< 850#$Ultimate##0 [2024-10-12 00:59:47,171 INFO L747 eck$LassoCheckResult]: Loop: 850#$Ultimate##0 ~x := #in~x; 879#L18 assume !(~x > 100); 847#L21 call #t~ret4 := f91(11 + ~x);< 845#$Ultimate##0 ~x := #in~x; 848#L18 assume !(~x > 100); 846#L21 call #t~ret4 := f91(11 + ~x);< 864#$Ultimate##0 ~x := #in~x; 885#L18 assume ~x > 100;#res := ~x - 10; 883#f91FINAL assume true; 881#f91EXIT >#29#return; 857#L21-1 call #t~ret5 := f91(#t~ret4);< 880#$Ultimate##0 ~x := #in~x; 877#L18 assume ~x > 100;#res := ~x - 10; 878#f91FINAL assume true; 889#f91EXIT >#31#return; 838#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 888#f91FINAL assume true; 887#f91EXIT >#29#return; 837#L21-1 call #t~ret5 := f91(#t~ret4);< 850#$Ultimate##0 [2024-10-12 00:59:47,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:47,171 INFO L85 PathProgramCache]: Analyzing trace with hash -834951989, now seen corresponding path program 1 times [2024-10-12 00:59:47,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:47,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2898571] [2024-10-12 00:59:47,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:47,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:47,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:47,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:47,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:47,196 INFO L85 PathProgramCache]: Analyzing trace with hash -871747263, now seen corresponding path program 1 times [2024-10-12 00:59:47,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:47,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065716974] [2024-10-12 00:59:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:47,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:47,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:47,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:47,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:47,217 INFO L85 PathProgramCache]: Analyzing trace with hash 418853943, now seen corresponding path program 2 times [2024-10-12 00:59:47,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:47,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121338217] [2024-10-12 00:59:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:47,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:47,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 00:59:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:47,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 00:59:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:47,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 00:59:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:47,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 00:59:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:47,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 00:59:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:47,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 00:59:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-12 00:59:47,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:59:47,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121338217] [2024-10-12 00:59:47,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121338217] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:59:47,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021378315] [2024-10-12 00:59:47,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:59:47,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:59:47,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:47,472 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:59:47,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-12 00:59:47,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 00:59:47,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:59:47,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-12 00:59:47,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-12 00:59:47,564 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:59:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-12 00:59:47,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021378315] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:59:47,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:59:47,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2024-10-12 00:59:47,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761765669] [2024-10-12 00:59:47,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:59:48,101 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:48,101 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:48,102 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:48,102 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:48,102 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:59:48,102 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:48,102 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:48,102 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:48,102 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration4_Loop [2024-10-12 00:59:48,102 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:48,102 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:48,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,158 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:48,159 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:59:48,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:48,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:48,163 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:48,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-12 00:59:48,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:48,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:48,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:48,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:48,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:48,205 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:48,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-12 00:59:48,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:59:48,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:48,221 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:59:48,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-12 00:59:48,235 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:48,235 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:48,235 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:48,235 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:48,235 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:59:48,235 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:48,235 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:48,235 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:48,235 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration4_Loop [2024-10-12 00:59:48,235 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:48,235 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:48,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:48,287 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:48,287 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:59:48,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:48,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:48,293 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:48,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-12 00:59:48,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:48,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-12 00:59:48,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:48,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:48,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:48,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:48,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:48,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:48,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:48,338 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:59:48,339 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:59:48,339 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:59:48,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:48,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:48,341 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:48,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-12 00:59:48,343 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:59:48,343 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:59:48,343 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:59:48,343 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2024-10-12 00:59:48,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-12 00:59:48,355 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:59:48,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:48,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-12 00:59:48,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:48,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-12 00:59:48,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:48,932 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-12 00:59:48,932 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 10 loop predicates [2024-10-12 00:59:48,933 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-12 00:59:49,400 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Result 125 states and 150 transitions. Complement of second has 49 states. [2024-10-12 00:59:49,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 2 stem states 12 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 7 states have internal predecessors, (17), 6 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-12 00:59:49,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2024-10-12 00:59:49,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-10-12 00:59:49,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:49,405 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:59:49,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:49,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-12 00:59:49,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:49,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-12 00:59:49,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 00:59:49,732 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 9 loop predicates [2024-10-12 00:59:49,732 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-12 00:59:49,987 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Result 125 states and 150 transitions. Complement of second has 39 states. [2024-10-12 00:59:49,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:49,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-12 00:59:49,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 35 transitions. [2024-10-12 00:59:49,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-10-12 00:59:49,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:49,990 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:59:49,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:50,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-12 00:59:50,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:50,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-12 00:59:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:50,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-12 00:59:50,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:50,344 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 00:59:50,345 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 9 loop predicates [2024-10-12 00:59:50,345 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21 Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-12 00:59:50,858 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 74 transitions. cyclomatic complexity: 21. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Result 325 states and 417 transitions. Complement of second has 131 states. [2024-10-12 00:59:50,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 19 states 2 stem states 16 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:50,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 5 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-12 00:59:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 50 transitions. [2024-10-12 00:59:50,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 22 letters. Loop has 19 letters. [2024-10-12 00:59:50,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:50,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 41 letters. Loop has 19 letters. [2024-10-12 00:59:50,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:50,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 22 letters. Loop has 38 letters. [2024-10-12 00:59:50,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:50,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 417 transitions. [2024-10-12 00:59:50,870 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2024-10-12 00:59:50,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 169 states and 230 transitions. [2024-10-12 00:59:50,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2024-10-12 00:59:50,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2024-10-12 00:59:50,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 230 transitions. [2024-10-12 00:59:50,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:59:50,875 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 230 transitions. [2024-10-12 00:59:50,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 230 transitions. [2024-10-12 00:59:50,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2024-10-12 00:59:50,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 86 states have (on average 1.0813953488372092) internal successors, (93), 88 states have internal predecessors, (93), 32 states have call successors, (42), 26 states have call predecessors, (42), 22 states have return successors, (43), 25 states have call predecessors, (43), 28 states have call successors, (43) [2024-10-12 00:59:50,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2024-10-12 00:59:50,885 INFO L240 hiAutomatonCegarLoop]: Abstraction has 140 states and 178 transitions. [2024-10-12 00:59:50,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:59:50,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-12 00:59:50,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-10-12 00:59:50,886 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand has 17 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 10 states have internal predecessors, (24), 8 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2024-10-12 00:59:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:59:51,072 INFO L93 Difference]: Finished difference Result 138 states and 163 transitions. [2024-10-12 00:59:51,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 163 transitions. [2024-10-12 00:59:51,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:59:51,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 101 states and 121 transitions. [2024-10-12 00:59:51,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2024-10-12 00:59:51,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2024-10-12 00:59:51,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 121 transitions. [2024-10-12 00:59:51,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:59:51,077 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 121 transitions. [2024-10-12 00:59:51,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 121 transitions. [2024-10-12 00:59:51,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2024-10-12 00:59:51,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.05) internal successors, (63), 61 states have internal predecessors, (63), 22 states have call successors, (29), 19 states have call predecessors, (29), 15 states have return successors, (25), 16 states have call predecessors, (25), 18 states have call successors, (25) [2024-10-12 00:59:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2024-10-12 00:59:51,083 INFO L240 hiAutomatonCegarLoop]: Abstraction has 97 states and 117 transitions. [2024-10-12 00:59:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 00:59:51,089 INFO L425 stractBuchiCegarLoop]: Abstraction has 97 states and 117 transitions. [2024-10-12 00:59:51,089 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-12 00:59:51,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 117 transitions. [2024-10-12 00:59:51,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:59:51,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:59:51,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:59:51,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-10-12 00:59:51,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:59:51,092 INFO L745 eck$LassoCheckResult]: Stem: 2781#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 2782#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 2779#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 2780#$Ultimate##0 ~x := #in~x; 2793#L18 assume !(~x > 100); 2794#L21 call #t~ret4 := f91(11 + ~x);< 2798#$Ultimate##0 ~x := #in~x; 2811#L18 assume !(~x > 100); 2805#L21 call #t~ret4 := f91(11 + ~x);< 2809#$Ultimate##0 ~x := #in~x; 2812#L18 assume ~x > 100;#res := ~x - 10; 2810#f91FINAL assume true; 2808#f91EXIT >#29#return; 2804#L21-1 call #t~ret5 := f91(#t~ret4);< 2807#$Ultimate##0 ~x := #in~x; 2837#L18 assume ~x > 100;#res := ~x - 10; 2825#f91FINAL assume true; 2824#f91EXIT >#31#return; 2822#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 2821#f91FINAL assume true; 2820#f91EXIT >#29#return; 2813#L21-1 call #t~ret5 := f91(#t~ret4);< 2819#$Ultimate##0 ~x := #in~x; 2817#L18 assume !(~x > 100); 2774#L21 call #t~ret4 := f91(11 + ~x);< 2815#$Ultimate##0 ~x := #in~x; 2831#L18 assume ~x > 100;#res := ~x - 10; 2830#f91FINAL assume true; 2829#f91EXIT >#29#return; 2796#L21-1 call #t~ret5 := f91(#t~ret4);< 2828#$Ultimate##0 ~x := #in~x; 2841#L18 assume !(~x > 100); 2795#L21 call #t~ret4 := f91(11 + ~x);< 2797#$Ultimate##0 ~x := #in~x; 2855#L18 assume ~x > 100;#res := ~x - 10; 2854#f91FINAL assume true; 2846#f91EXIT >#29#return; 2786#L21-1 call #t~ret5 := f91(#t~ret4);< 2845#$Ultimate##0 [2024-10-12 00:59:51,092 INFO L747 eck$LassoCheckResult]: Loop: 2845#$Ultimate##0 ~x := #in~x; 2850#L18 assume !(~x > 100); 2848#L21 call #t~ret4 := f91(11 + ~x);< 2797#$Ultimate##0 ~x := #in~x; 2855#L18 assume ~x > 100;#res := ~x - 10; 2854#f91FINAL assume true; 2846#f91EXIT >#29#return; 2785#L21-1 call #t~ret5 := f91(#t~ret4);< 2845#$Ultimate##0 [2024-10-12 00:59:51,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:51,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1139827145, now seen corresponding path program 3 times [2024-10-12 00:59:51,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:51,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837351241] [2024-10-12 00:59:51,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:51,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:51,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:51,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:51,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:51,108 INFO L85 PathProgramCache]: Analyzing trace with hash 31195136, now seen corresponding path program 2 times [2024-10-12 00:59:51,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:51,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732000587] [2024-10-12 00:59:51,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:51,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:51,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:51,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:51,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:51,113 INFO L85 PathProgramCache]: Analyzing trace with hash 424810952, now seen corresponding path program 4 times [2024-10-12 00:59:51,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:59:51,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740086771] [2024-10-12 00:59:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:59:51,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:59:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:51,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:59:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:59:51,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:59:51,224 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:51,225 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:51,225 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:51,225 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:51,225 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:59:51,225 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,225 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:51,225 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:51,226 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration5_Loop [2024-10-12 00:59:51,226 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:51,226 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:51,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,258 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:51,258 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:59:51,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,260 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-12 00:59:51,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:51,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:51,275 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:59:51,276 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:59:51,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-12 00:59:51,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,292 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-12 00:59:51,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:51,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:51,305 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:59:51,305 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:59:51,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:51,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,322 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-12 00:59:51,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:59:51,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:51,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-12 00:59:51,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,355 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-12 00:59:51,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:59:51,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:59:51,369 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:59:51,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:51,381 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:59:51,381 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:59:51,381 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:59:51,381 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:59:51,381 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:59:51,381 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,381 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:59:51,381 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:59:51,381 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-1.c_Iteration5_Loop [2024-10-12 00:59:51,381 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:59:51,381 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:59:51,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:59:51,415 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:59:51,415 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:59:51,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,419 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-12 00:59:51,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:51,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:51,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:51,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:51,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:51,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:51,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:51,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:51,437 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:59:51,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:51,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,452 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-12 00:59:51,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:51,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:51,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:51,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:51,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:51,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:51,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:51,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:51,470 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:59:51,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:51,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,486 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-12 00:59:51,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:51,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:51,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:51,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:51,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:51,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:51,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:51,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:51,499 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:59:51,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-12 00:59:51,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,512 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-12 00:59:51,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:59:51,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:59:51,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:59:51,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:59:51,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:59:51,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:59:51,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:59:51,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:59:51,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:59:51,530 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:59:51,530 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:59:51,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:59:51,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:59:51,531 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:59:51,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-12 00:59:51,533 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:59:51,533 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:59:51,533 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:59:51,533 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 201 Supporting invariants [] [2024-10-12 00:59:51,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-12 00:59:51,544 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:59:51,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:51,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-12 00:59:51,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:51,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-10-12 00:59:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:51,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-12 00:59:51,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:52,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:52,001 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-10-12 00:59:52,001 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:52,062 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 107 states and 127 transitions. Complement of second has 16 states. [2024-10-12 00:59:52,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:52,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2024-10-12 00:59:52,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 38 letters. Loop has 8 letters. [2024-10-12 00:59:52,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:52,064 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:59:52,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:52,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-12 00:59:52,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:52,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-12 00:59:52,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:52,438 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2024-10-12 00:59:52,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:52,581 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 125 states and 146 transitions. Complement of second has 28 states. [2024-10-12 00:59:52,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:52,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:52,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 20 transitions. [2024-10-12 00:59:52,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 20 transitions. Stem has 38 letters. Loop has 8 letters. [2024-10-12 00:59:52,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:52,583 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:59:52,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:52,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-12 00:59:52,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:52,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-12 00:59:52,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:52,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:52,842 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-10-12 00:59:52,842 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:52,909 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 147 states and 167 transitions. Complement of second has 17 states. [2024-10-12 00:59:52,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:52,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2024-10-12 00:59:52,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 38 letters. Loop has 8 letters. [2024-10-12 00:59:52,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:52,911 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:59:52,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:59:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:52,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-12 00:59:52,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:59:53,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-12 00:59:53,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:59:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:59:53,203 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2024-10-12 00:59:53,203 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24 Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:53,420 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 117 transitions. cyclomatic complexity: 24. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 182 states and 209 transitions. Complement of second has 51 states. [2024-10-12 00:59:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2024-10-12 00:59:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-12 00:59:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 27 transitions. [2024-10-12 00:59:53,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 38 letters. Loop has 8 letters. [2024-10-12 00:59:53,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:53,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 46 letters. Loop has 8 letters. [2024-10-12 00:59:53,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:53,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 38 letters. Loop has 16 letters. [2024-10-12 00:59:53,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:59:53,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 209 transitions. [2024-10-12 00:59:53,423 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:59:53,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 0 states and 0 transitions. [2024-10-12 00:59:53,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:59:53,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:59:53,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:59:53,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:59:53,424 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:59:53,424 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:59:53,424 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:59:53,424 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-12 00:59:53,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:59:53,424 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:59:53,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:59:53,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:59:53 BoogieIcfgContainer [2024-10-12 00:59:53,431 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:59:53,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:59:53,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:59:53,432 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:59:53,432 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:59:19" (3/4) ... [2024-10-12 00:59:53,436 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:59:53,437 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:59:53,438 INFO L158 Benchmark]: Toolchain (without parser) took 34523.26ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 109.1MB in the beginning and 182.6MB in the end (delta: -73.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-10-12 00:59:53,441 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:59:53,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.35ms. Allocated memory is still 180.4MB. Free memory was 108.9MB in the beginning and 97.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 00:59:53,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.28ms. Allocated memory is still 180.4MB. Free memory was 97.5MB in the beginning and 96.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:59:53,442 INFO L158 Benchmark]: Boogie Preprocessor took 22.30ms. Allocated memory is still 180.4MB. Free memory was 96.0MB in the beginning and 94.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:59:53,442 INFO L158 Benchmark]: RCFGBuilder took 244.55ms. Allocated memory is still 180.4MB. Free memory was 94.5MB in the beginning and 143.5MB in the end (delta: -49.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-10-12 00:59:53,442 INFO L158 Benchmark]: BuchiAutomizer took 34020.68ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 143.5MB in the beginning and 183.6MB in the end (delta: -40.1MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2024-10-12 00:59:53,442 INFO L158 Benchmark]: Witness Printer took 5.23ms. Allocated memory is still 266.3MB. Free memory was 183.6MB in the beginning and 182.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:59:53,443 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.35ms. Allocated memory is still 180.4MB. Free memory was 108.9MB in the beginning and 97.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.28ms. Allocated memory is still 180.4MB. Free memory was 97.5MB in the beginning and 96.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.30ms. Allocated memory is still 180.4MB. Free memory was 96.0MB in the beginning and 94.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 244.55ms. Allocated memory is still 180.4MB. Free memory was 94.5MB in the beginning and 143.5MB in the end (delta: -49.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 34020.68ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 143.5MB in the beginning and 183.6MB in the end (delta: -40.1MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * Witness Printer took 5.23ms. Allocated memory is still 266.3MB. Free memory was 183.6MB in the beginning and 182.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~ret4 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 2 deterministic, 3 nondeterministic). One deterministic module has affine ranking function (211 + ((long long) -2 * \old(x))) and consists of 5 locations. One deterministic module has affine ranking function null and consists of 8 locations. One nondeterministic module has affine ranking function (((long long) -2 * x) + 189) and consists of 6 locations. One nondeterministic module has affine ranking function (((long long) -1 * \old(x)) + 90) and consists of 19 locations. One nondeterministic module has affine ranking function (((long long) -2 * \old(x)) + 201) and consists of 12 locations. 2 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.9s and 6 iterations. TraceHistogramMax:8. Analysis of lassos took 27.8s. Construction of modules took 0.7s. Büchi inclusion checks took 5.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 48 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 2, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 10/24 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 417 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 233 mSDsCounter, 208 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 882 IncrementalHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 208 mSolverCounterUnsat, 184 mSDtfsCounter, 882 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf91 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 24.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-12 00:59:53,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-12 00:59:53,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE