./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/McCarthy91-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:59:43,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:59:43,508 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-19 14:59:43,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:59:43,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:59:43,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:59:43,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:59:43,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:59:43,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:59:43,546 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:59:43,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:59:43,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:59:43,548 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:59:43,549 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-19 14:59:43,549 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-19 14:59:43,549 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-19 14:59:43,550 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-19 14:59:43,550 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-19 14:59:43,550 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-19 14:59:43,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:59:43,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-19 14:59:43,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:59:43,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:59:43,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:59:43,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:59:43,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-19 14:59:43,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-19 14:59:43,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-19 14:59:43,554 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:59:43,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:59:43,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:59:43,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:59:43,555 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-19 14:59:43,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:59:43,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:59:43,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:59:43,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:59:43,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:59:43,557 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-19 14:59:43,557 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/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a5dd5c1c64cd1875ba800cc2db6d1da955f2d2f519c1964ff87558bc42b9b4c [2024-11-19 14:59:43,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:59:43,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:59:43,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:59:43,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:59:43,849 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:59:43,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/McCarthy91-2.c [2024-11-19 14:59:45,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:59:45,481 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:59:45,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-2.c [2024-11-19 14:59:45,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7344f5aa/39728f5f4bc14d1a90ff48b8df8da460/FLAGd9b555545 [2024-11-19 14:59:45,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7344f5aa/39728f5f4bc14d1a90ff48b8df8da460 [2024-11-19 14:59:45,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:59:45,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:59:45,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:59:45,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:59:45,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:59:45,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c1d36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45, skipping insertion in model container [2024-11-19 14:59:45,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:59:45,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:59:45,703 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:59:45,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:59:45,730 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:59:45,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45 WrapperNode [2024-11-19 14:59:45,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:59:45,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:59:45,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:59:45,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:59:45,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,756 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-11-19 14:59:45,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:59:45,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:59:45,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:59:45,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:59:45,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,767 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,781 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 14:59:45,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,787 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:59:45,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:59:45,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:59:45,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:59:45,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (1/1) ... [2024-11-19 14:59:45,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:45,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:45,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:45,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-19 14:59:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:59:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:59:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:59:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:59:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2024-11-19 14:59:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2024-11-19 14:59:45,930 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:59:45,931 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:59:46,025 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-19 14:59:46,025 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:59:46,037 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:59:46,038 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 14:59:46,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:59:46 BoogieIcfgContainer [2024-11-19 14:59:46,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:59:46,039 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-19 14:59:46,039 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-19 14:59:46,043 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-19 14:59:46,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:59:46,044 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 02:59:45" (1/3) ... [2024-11-19 14:59:46,047 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4377ca06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:59:46, skipping insertion in model container [2024-11-19 14:59:46,048 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:59:46,048 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:45" (2/3) ... [2024-11-19 14:59:46,049 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4377ca06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:59:46, skipping insertion in model container [2024-11-19 14:59:46,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:59:46,049 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:59:46" (3/3) ... [2024-11-19 14:59:46,051 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91-2.c [2024-11-19 14:59:46,122 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-19 14:59:46,122 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-19 14:59:46,122 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-19 14:59:46,123 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-19 14:59:46,123 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-19 14:59:46,123 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-19 14:59:46,125 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-19 14:59:46,125 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-19 14:59:46,130 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) [2024-11-19 14:59:46,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 14:59:46,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:59:46,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:59:46,157 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-19 14:59:46,157 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:59:46,158 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-19 14:59:46,159 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) [2024-11-19 14:59:46,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 14:59:46,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:59:46,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:59:46,162 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-19 14:59:46,162 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:59:46,171 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 [2024-11-19 14:59:46,172 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 [2024-11-19 14:59:46,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:59:46,182 INFO L85 PathProgramCache]: Analyzing trace with hash 29879, now seen corresponding path program 1 times [2024-11-19 14:59:46,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:59:46,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534884645] [2024-11-19 14:59:46,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:59:46,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:59:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:46,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:59:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:46,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:59:46,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:59:46,309 INFO L85 PathProgramCache]: Analyzing trace with hash 46807, now seen corresponding path program 1 times [2024-11-19 14:59:46,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:59:46,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230227036] [2024-11-19 14:59:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:59:46,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:59:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:46,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:59:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:46,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:59:46,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:59:46,332 INFO L85 PathProgramCache]: Analyzing trace with hash 890142305, now seen corresponding path program 1 times [2024-11-19 14:59:46,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:59:46,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111433321] [2024-11-19 14:59:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:59:46,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:59:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:46,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:59:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:46,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:59:46,454 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:59:46,455 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:59:46,455 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:59:46,455 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:59:46,455 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:59:46,455 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:46,456 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:59:46,456 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:59:46,456 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2024-11-19 14:59:46,456 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:59:46,456 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:59:46,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:46,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:46,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:46,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:46,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:46,561 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:59:46,561 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:59:46,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:46,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:46,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:46,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-19 14:59:46,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:59:46,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:59:46,597 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:59:46,597 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:59:46,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-19 14:59:46,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:46,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:46,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:46,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-19 14:59:46,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:59:46,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:59:46,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-19 14:59:46,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:46,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:46,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:46,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-19 14:59:46,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:59:46,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:59:47,041 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:59:47,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-19 14:59:47,047 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:59:47,047 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:59:47,047 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:59:47,047 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:59:47,047 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:59:47,048 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:47,048 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:59:47,048 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:59:47,048 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration1_Loop [2024-11-19 14:59:47,048 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:59:47,048 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:59:47,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:47,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:47,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:47,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:47,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:47,116 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:59:47,121 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:59:47,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:47,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:47,124 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:47,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-19 14:59:47,129 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 [2024-11-19 14:59:47,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:59:47,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:59:47,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:59:47,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:59:47,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:59:47,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:59:47,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:59:47,149 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:59:47,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-19 14:59:47,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:47,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:47,164 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:47,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-19 14:59:47,166 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 [2024-11-19 14:59:47,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:59:47,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:59:47,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:59:47,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:59:47,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:59:47,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:59:47,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:59:47,184 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:59:47,187 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:59:47,188 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:59:47,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:47,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:47,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:47,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-19 14:59:47,195 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:59:47,195 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:59:47,196 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:59:47,197 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 211 Supporting invariants [] [2024-11-19 14:59:47,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-19 14:59:47,216 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:59:47,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:59:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:59:47,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:59:47,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:59:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:59:47,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 14:59:47,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:59:47,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-19 14:59:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:59:47,486 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 [2024-11-19 14:59:47,488 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) [2024-11-19 14:59:47,607 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. [2024-11-19 14:59:47,611 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 [2024-11-19 14:59:47,618 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) [2024-11-19 14:59:47,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2024-11-19 14:59:47,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-19 14:59:47,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:59:47,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-19 14:59:47,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:59:47,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-19 14:59:47,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:59:47,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2024-11-19 14:59:47,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 14:59:47,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 25 transitions. [2024-11-19 14:59:47,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-19 14:59:47,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-19 14:59:47,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2024-11-19 14:59:47,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:59:47,642 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2024-11-19 14:59:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2024-11-19 14:59:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2024-11-19 14:59:47,670 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) [2024-11-19 14:59:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-19 14:59:47,672 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-19 14:59:47,672 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-19 14:59:47,672 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-19 14:59:47,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2024-11-19 14:59:47,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 14:59:47,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:59:47,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:59:47,676 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:59:47,676 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:59:47,676 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#$Ultimate##0 ~x := #in~x; 116#L18 assume ~x > 100;#res := ~x - 10; 123#f91FINAL assume true; 109#f91EXIT >#29#return; 111#L21-1 [2024-11-19 14:59:47,677 INFO L747 eck$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 [2024-11-19 14:59:47,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:59:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash -218206616, now seen corresponding path program 1 times [2024-11-19 14:59:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:59:47,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431754890] [2024-11-19 14:59:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:59:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:59:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:47,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:59:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:47,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:59:47,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:59:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1767505954, now seen corresponding path program 1 times [2024-11-19 14:59:47,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:59:47,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609164744] [2024-11-19 14:59:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:59:47,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:59:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:47,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:59:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:47,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:59:47,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:59:47,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1919740023, now seen corresponding path program 1 times [2024-11-19 14:59:47,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:59:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929740374] [2024-11-19 14:59:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:59:47,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:59:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:47,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:59:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:59:47,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:59:47,949 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:59:47,950 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:59:47,950 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:59:47,950 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:59:47,950 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:59:47,950 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:47,950 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:59:47,950 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:59:47,950 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2024-11-19 14:59:47,950 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:59:47,951 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:59:47,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:47,955 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:47,957 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:59:48,004 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:59:48,005 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:59:48,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:48,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:48,007 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:48,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-19 14:59:48,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:59:48,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:59:48,023 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:59:48,024 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret5=0} Honda state: {f91_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:59:48,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-19 14:59:48,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:48,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:48,044 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:48,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-19 14:59:48,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:59:48,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:59:48,066 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:59:48,067 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:59:48,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-19 14:59:48,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:48,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:48,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:48,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-19 14:59:48,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:59:48,092 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:59:48,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-19 14:59:48,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:59:48,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:59:48,141 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:59:48,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-19 14:59:48,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:59:48,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:00,194 INFO L403 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2024-11-19 15:00:00,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:00,208 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:00,208 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:00,208 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:00,208 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:00,208 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 15:00:00,208 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:00,208 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:00,208 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:00,208 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration2_Loop [2024-11-19 15:00:00,208 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:00,208 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:00,210 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:00,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:00,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:00,268 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:00,268 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 15:00:00,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:00,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:00,270 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:00,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-19 15:00:00,274 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 [2024-11-19 15:00:00,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:00,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:00,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:00,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:00,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:00,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:00,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:00,293 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:00,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-19 15:00:00,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:00,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:00,312 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:00,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-19 15:00:00,314 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 [2024-11-19 15:00:00,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:00,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:00,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:00,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:00,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:00,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:00,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:00,329 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:00,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-19 15:00:00,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:00,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:00,347 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:00,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-19 15:00:00,350 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 [2024-11-19 15:00:00,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:00,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:00,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:00,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:00,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:00,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:00,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:00,366 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 15:00:00,369 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 15:00:00,369 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 15:00:00,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:00,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:00,371 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:00,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-19 15:00:00,374 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 15:00:00,374 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 15:00:00,374 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 15:00:00,374 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#t~ret4) = -2*f91_#t~ret4 + 201 Supporting invariants [] [2024-11-19 15:00:00,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-19 15:00:00,391 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 15:00:00,399 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret4 [2024-11-19 15:00:00,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:00,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 15:00:00,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:00,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 15:00:00,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:00,677 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 [2024-11-19 15:00:00,678 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) [2024-11-19 15:00:00,879 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. [2024-11-19 15:00:00,880 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 [2024-11-19 15:00:00,881 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) [2024-11-19 15:00:00,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2024-11-19 15:00:00,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-19 15:00:00,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:00,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 8 letters. [2024-11-19 15:00:00,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:00,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 10 letters. Loop has 16 letters. [2024-11-19 15:00:00,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:00,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 73 transitions. [2024-11-19 15:00:00,887 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-19 15:00:00,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 62 transitions. [2024-11-19 15:00:00,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-19 15:00:00,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2024-11-19 15:00:00,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 62 transitions. [2024-11-19 15:00:00,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:00,891 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 62 transitions. [2024-11-19 15:00:00,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 62 transitions. [2024-11-19 15:00:00,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2024-11-19 15:00:00,896 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) [2024-11-19 15:00:00,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2024-11-19 15:00:00,898 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-19 15:00:00,898 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 51 transitions. [2024-11-19 15:00:00,898 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-19 15:00:00,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 51 transitions. [2024-11-19 15:00:00,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-19 15:00:00,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:00,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:00,900 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:00,900 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 15:00:00,901 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#$Ultimate##0 ~x := #in~x; 328#L18 assume !(~x > 100); 302#L21 [2024-11-19 15:00:00,901 INFO L747 eck$LassoCheckResult]: Loop: 302#L21 call #t~ret4 := f91(11 + ~x);< 301#$Ultimate##0 ~x := #in~x; 303#L18 assume !(~x > 100); 302#L21 [2024-11-19 15:00:00,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1987218266, now seen corresponding path program 2 times [2024-11-19 15:00:00,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:00,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144716367] [2024-11-19 15:00:00,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:00,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:00,930 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 15:00:00,934 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 15:00:00,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:00,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:00,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:00,948 INFO L85 PathProgramCache]: Analyzing trace with hash 57247, now seen corresponding path program 2 times [2024-11-19 15:00:00,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:00,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671166519] [2024-11-19 15:00:00,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:00,952 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 15:00:00,953 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 15:00:00,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:00,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:00,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash -609818202, now seen corresponding path program 3 times [2024-11-19 15:00:00,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:00,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451533664] [2024-11-19 15:00:00,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 15:00:00,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:00,974 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-19 15:00:00,974 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 15:00:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 15:00:01,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 15:00:01,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451533664] [2024-11-19 15:00:01,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451533664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 15:00:01,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 15:00:01,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 15:00:01,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239614149] [2024-11-19 15:00:01,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 15:00:01,214 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:01,214 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:01,214 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:01,214 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:01,215 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 15:00:01,215 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:01,215 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:01,215 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:01,215 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration3_Loop [2024-11-19 15:00:01,215 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:01,215 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:01,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:01,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:01,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:01,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:01,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-19 15:00:01,276 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:01,277 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 15:00:01,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:01,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:01,279 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:01,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-19 15:00:01,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:01,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:01,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-19 15:00:01,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:01,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:01,328 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:01,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-19 15:00:01,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 15:00:01,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:13,369 INFO L403 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2024-11-19 15:00:13,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:13,381 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:13,381 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:13,381 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:13,381 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:13,381 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 15:00:13,381 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:13,381 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:13,381 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:13,381 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration3_Loop [2024-11-19 15:00:13,381 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:13,381 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:13,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:13,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:13,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:13,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:13,428 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:13,428 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 15:00:13,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:13,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:13,430 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:13,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-19 15:00:13,433 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 [2024-11-19 15:00:13,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:13,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:13,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:13,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:13,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:13,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:13,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:13,449 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:13,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:13,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:13,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:13,467 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:13,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-19 15:00:13,470 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 [2024-11-19 15:00:13,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:13,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:13,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:13,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:13,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:13,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:13,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:13,490 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 15:00:13,494 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 15:00:13,495 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 15:00:13,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:13,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:13,497 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:13,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-19 15:00:13,500 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 15:00:13,501 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 15:00:13,504 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 15:00:13,505 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_~x) = -2*f91_~x + 189 Supporting invariants [] [2024-11-19 15:00:13,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-19 15:00:13,520 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 15:00:13,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:13,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 15:00:13,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:13,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 15:00:13,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:13,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:13,665 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 [2024-11-19 15:00:13,665 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) [2024-11-19 15:00:13,733 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. [2024-11-19 15:00:13,735 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 [2024-11-19 15:00:13,736 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) [2024-11-19 15:00:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-11-19 15:00:13,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-19 15:00:13,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:13,737 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:13,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:13,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 15:00:13,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:13,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 15:00:13,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:13,893 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 [2024-11-19 15:00:13,893 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) [2024-11-19 15:00:13,956 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. [2024-11-19 15:00:13,957 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 [2024-11-19 15:00:13,957 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) [2024-11-19 15:00:13,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-11-19 15:00:13,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-19 15:00:13,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:13,958 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:13,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:13,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 15:00:13,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:14,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 15:00:14,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:14,097 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 [2024-11-19 15:00:14,098 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) [2024-11-19 15:00:14,173 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. [2024-11-19 15:00:14,173 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 [2024-11-19 15:00:14,174 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) [2024-11-19 15:00:14,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2024-11-19 15:00:14,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2024-11-19 15:00:14,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:14,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2024-11-19 15:00:14,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:14,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2024-11-19 15:00:14,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:14,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions. [2024-11-19 15:00:14,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-19 15:00:14,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 48 states and 74 transitions. [2024-11-19 15:00:14,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-11-19 15:00:14,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2024-11-19 15:00:14,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 74 transitions. [2024-11-19 15:00:14,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:14,182 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 74 transitions. [2024-11-19 15:00:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 74 transitions. [2024-11-19 15:00:14,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2024-11-19 15:00:14,189 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) [2024-11-19 15:00:14,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2024-11-19 15:00:14,190 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 60 transitions. [2024-11-19 15:00:14,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 15:00:14,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 15:00:14,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 15:00:14,196 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) [2024-11-19 15:00:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 15:00:14,297 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2024-11-19 15:00:14,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2024-11-19 15:00:14,299 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-19 15:00:14,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 58 states and 75 transitions. [2024-11-19 15:00:14,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-19 15:00:14,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-19 15:00:14,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 75 transitions. [2024-11-19 15:00:14,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:14,304 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 75 transitions. [2024-11-19 15:00:14,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 75 transitions. [2024-11-19 15:00:14,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-11-19 15:00:14,314 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) [2024-11-19 15:00:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2024-11-19 15:00:14,315 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-11-19 15:00:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 15:00:14,316 INFO L425 stractBuchiCegarLoop]: Abstraction has 57 states and 74 transitions. [2024-11-19 15:00:14,316 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-19 15:00:14,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 74 transitions. [2024-11-19 15:00:14,318 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2024-11-19 15:00:14,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:14,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:14,319 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-19 15:00:14,319 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 1, 1] [2024-11-19 15:00:14,319 INFO L745 eck$LassoCheckResult]: Stem: 849#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 850#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 845#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 848#$Ultimate##0 ~x := #in~x; 872#L18 assume !(~x > 100); 865#L21 call #t~ret4 := f91(11 + ~x);< 868#$Ultimate##0 ~x := #in~x; 869#L18 assume !(~x > 100); 864#L21 call #t~ret4 := f91(11 + ~x);< 867#$Ultimate##0 ~x := #in~x; 871#L18 assume ~x > 100;#res := ~x - 10; 870#f91FINAL assume true; 866#f91EXIT >#29#return; 839#L21-1 call #t~ret5 := f91(#t~ret4);< 838#$Ultimate##0 ~x := #in~x; 840#L18 assume ~x > 100;#res := ~x - 10; 857#f91FINAL assume true; 885#f91EXIT >#31#return; 834#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 884#f91FINAL assume true; 883#f91EXIT >#29#return; 832#L21-1 call #t~ret5 := f91(#t~ret4);< 846#$Ultimate##0 [2024-11-19 15:00:14,321 INFO L747 eck$LassoCheckResult]: Loop: 846#$Ultimate##0 ~x := #in~x; 875#L18 assume !(~x > 100); 842#L21 call #t~ret4 := f91(11 + ~x);< 841#$Ultimate##0 ~x := #in~x; 844#L18 assume !(~x > 100); 843#L21 call #t~ret4 := f91(11 + ~x);< 860#$Ultimate##0 ~x := #in~x; 881#L18 assume ~x > 100;#res := ~x - 10; 879#f91FINAL assume true; 877#f91EXIT >#29#return; 852#L21-1 call #t~ret5 := f91(#t~ret4);< 876#$Ultimate##0 ~x := #in~x; 873#L18 assume ~x > 100;#res := ~x - 10; 874#f91FINAL assume true; 886#f91EXIT >#31#return; 834#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 884#f91FINAL assume true; 883#f91EXIT >#29#return; 833#L21-1 call #t~ret5 := f91(#t~ret4);< 846#$Ultimate##0 [2024-11-19 15:00:14,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:14,322 INFO L85 PathProgramCache]: Analyzing trace with hash -834951989, now seen corresponding path program 1 times [2024-11-19 15:00:14,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:14,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797091936] [2024-11-19 15:00:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:14,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:14,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:14,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:14,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:14,343 INFO L85 PathProgramCache]: Analyzing trace with hash -871747263, now seen corresponding path program 1 times [2024-11-19 15:00:14,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:14,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215672233] [2024-11-19 15:00:14,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 15:00:14,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:14,351 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:14,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:14,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:14,365 INFO L85 PathProgramCache]: Analyzing trace with hash 418853943, now seen corresponding path program 2 times [2024-11-19 15:00:14,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:14,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813907032] [2024-11-19 15:00:14,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:14,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:14,390 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 15:00:14,391 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 15:00:14,572 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 15:00:14,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 15:00:14,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813907032] [2024-11-19 15:00:14,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813907032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 15:00:14,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469255521] [2024-11-19 15:00:14,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:14,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 15:00:14,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:14,576 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 15:00:14,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 15:00:14,647 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 15:00:14,647 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 15:00:14,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 15:00:14,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:14,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-19 15:00:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 15:00:14,699 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 15:00:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 31 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-19 15:00:14,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469255521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 15:00:14,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 15:00:14,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-19 15:00:14,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996108439] [2024-11-19 15:00:14,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 15:00:15,099 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:15,099 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:15,099 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:15,099 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:15,099 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 15:00:15,100 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:15,100 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:15,100 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:15,100 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration4_Loop [2024-11-19 15:00:15,100 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:15,100 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:15,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,140 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:15,140 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 15:00:15,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:15,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:15,143 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:15,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-19 15:00:15,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:15,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:15,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:15,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:15,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:15,176 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:15,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-19 15:00:15,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 15:00:15,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:15,192 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 15:00:15,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-19 15:00:15,207 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:15,207 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:15,207 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:15,207 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:15,208 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 15:00:15,208 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:15,208 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:15,208 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:15,208 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration4_Loop [2024-11-19 15:00:15,208 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:15,208 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:15,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,222 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:15,253 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:15,254 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 15:00:15,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:15,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:15,258 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:15,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-19 15:00:15,260 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 [2024-11-19 15:00:15,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:15,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:15,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:15,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:15,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:15,272 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:15,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:15,274 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 15:00:15,277 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 15:00:15,277 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 15:00:15,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:15,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:15,280 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:15,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-19 15:00:15,281 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 15:00:15,281 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 15:00:15,282 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 15:00:15,282 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -1*f91_#in~x + 90 Supporting invariants [] [2024-11-19 15:00:15,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-19 15:00:15,297 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 15:00:15,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:15,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 15:00:15,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:15,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-19 15:00:15,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:15,756 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 15:00:15,756 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 [2024-11-19 15:00:15,757 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) [2024-11-19 15:00:16,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:16,207 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. [2024-11-19 15:00:16,209 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 [2024-11-19 15:00:16,210 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) [2024-11-19 15:00:16,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 35 transitions. [2024-11-19 15:00:16,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-19 15:00:16,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:16,210 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:16,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:16,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 15:00:16,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:16,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 15:00:16,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 15:00:16,640 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 [2024-11-19 15:00:16,640 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) [2024-11-19 15:00:16,959 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. [2024-11-19 15:00:16,960 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 [2024-11-19 15:00:16,961 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) [2024-11-19 15:00:16,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 35 transitions. [2024-11-19 15:00:16,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 35 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-19 15:00:16,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:16,962 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:16,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:17,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 15:00:17,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:17,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 15:00:17,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:17,321 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 15:00:17,322 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 [2024-11-19 15:00:17,322 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) [2024-11-19 15:00:17,867 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. [2024-11-19 15:00:17,870 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 [2024-11-19 15:00:17,870 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) [2024-11-19 15:00:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 50 transitions. [2024-11-19 15:00:17,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 22 letters. Loop has 19 letters. [2024-11-19 15:00:17,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:17,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 41 letters. Loop has 19 letters. [2024-11-19 15:00:17,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:17,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 19 states and 50 transitions. Stem has 22 letters. Loop has 38 letters. [2024-11-19 15:00:17,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:17,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 417 transitions. [2024-11-19 15:00:17,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2024-11-19 15:00:17,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 169 states and 230 transitions. [2024-11-19 15:00:17,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2024-11-19 15:00:17,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2024-11-19 15:00:17,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 230 transitions. [2024-11-19 15:00:17,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:17,902 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 230 transitions. [2024-11-19 15:00:17,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 230 transitions. [2024-11-19 15:00:17,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2024-11-19 15:00:17,914 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) [2024-11-19 15:00:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 178 transitions. [2024-11-19 15:00:17,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 140 states and 178 transitions. [2024-11-19 15:00:17,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 15:00:17,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 15:00:17,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-19 15:00:17,917 INFO L87 Difference]: Start difference. First operand 140 states and 178 transitions. Second operand has 15 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 8 states have internal predecessors, (22), 7 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 7 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-19 15:00:18,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 15:00:18,107 INFO L93 Difference]: Finished difference Result 138 states and 163 transitions. [2024-11-19 15:00:18,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 163 transitions. [2024-11-19 15:00:18,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 15:00:18,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 101 states and 121 transitions. [2024-11-19 15:00:18,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2024-11-19 15:00:18,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2024-11-19 15:00:18,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 121 transitions. [2024-11-19 15:00:18,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 15:00:18,113 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 121 transitions. [2024-11-19 15:00:18,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 121 transitions. [2024-11-19 15:00:18,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2024-11-19 15:00:18,119 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) [2024-11-19 15:00:18,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2024-11-19 15:00:18,120 INFO L240 hiAutomatonCegarLoop]: Abstraction has 97 states and 117 transitions. [2024-11-19 15:00:18,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 15:00:18,121 INFO L425 stractBuchiCegarLoop]: Abstraction has 97 states and 117 transitions. [2024-11-19 15:00:18,122 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-19 15:00:18,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 117 transitions. [2024-11-19 15:00:18,126 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 15:00:18,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 15:00:18,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 15:00:18,128 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-19 15:00:18,128 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-19 15:00:18,128 INFO L745 eck$LassoCheckResult]: Stem: 2733#$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); 2734#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; 2731#L28 call main_#t~ret7#1 := f91(main_~x~0#1);< 2732#$Ultimate##0 ~x := #in~x; 2747#L18 assume !(~x > 100); 2725#L21 call #t~ret4 := f91(11 + ~x);< 2723#$Ultimate##0 ~x := #in~x; 2726#L18 assume !(~x > 100); 2724#L21 call #t~ret4 := f91(11 + ~x);< 2776#$Ultimate##0 ~x := #in~x; 2779#L18 assume ~x > 100;#res := ~x - 10; 2778#f91FINAL assume true; 2777#f91EXIT >#29#return; 2772#L21-1 call #t~ret5 := f91(#t~ret4);< 2774#$Ultimate##0 ~x := #in~x; 2788#L18 assume ~x > 100;#res := ~x - 10; 2780#f91FINAL assume true; 2771#f91EXIT >#31#return; 2770#L21-2 #res := #t~ret5;havoc #t~ret4;havoc #t~ret5; 2768#f91FINAL assume true; 2767#f91EXIT >#29#return; 2762#L21-1 call #t~ret5 := f91(#t~ret4);< 2766#$Ultimate##0 ~x := #in~x; 2764#L18 assume !(~x > 100); 2727#L21 call #t~ret4 := f91(11 + ~x);< 2763#$Ultimate##0 ~x := #in~x; 2785#L18 assume ~x > 100;#res := ~x - 10; 2784#f91FINAL assume true; 2783#f91EXIT >#29#return; 2721#L21-1 call #t~ret5 := f91(#t~ret4);< 2720#$Ultimate##0 ~x := #in~x; 2722#L18 assume !(~x > 100); 2748#L21 call #t~ret4 := f91(11 + ~x);< 2749#$Ultimate##0 ~x := #in~x; 2806#L18 assume ~x > 100;#res := ~x - 10; 2805#f91FINAL assume true; 2800#f91EXIT >#29#return; 2737#L21-1 call #t~ret5 := f91(#t~ret4);< 2798#$Ultimate##0 [2024-11-19 15:00:18,128 INFO L747 eck$LassoCheckResult]: Loop: 2798#$Ultimate##0 ~x := #in~x; 2804#L18 assume !(~x > 100); 2802#L21 call #t~ret4 := f91(11 + ~x);< 2749#$Ultimate##0 ~x := #in~x; 2806#L18 assume ~x > 100;#res := ~x - 10; 2805#f91FINAL assume true; 2800#f91EXIT >#29#return; 2736#L21-1 call #t~ret5 := f91(#t~ret4);< 2798#$Ultimate##0 [2024-11-19 15:00:18,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:18,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1139827145, now seen corresponding path program 3 times [2024-11-19 15:00:18,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:18,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097718631] [2024-11-19 15:00:18,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 15:00:18,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:18,148 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-19 15:00:18,149 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 15:00:18,149 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:18,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:18,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:18,161 INFO L85 PathProgramCache]: Analyzing trace with hash 31195136, now seen corresponding path program 2 times [2024-11-19 15:00:18,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:18,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113004174] [2024-11-19 15:00:18,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 15:00:18,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:18,170 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 15:00:18,170 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 15:00:18,170 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:18,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:18,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash 424810952, now seen corresponding path program 4 times [2024-11-19 15:00:18,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 15:00:18,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043075940] [2024-11-19 15:00:18,179 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 15:00:18,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 15:00:18,194 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 15:00:18,194 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 15:00:18,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 15:00:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 15:00:18,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 15:00:18,294 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:18,295 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:18,295 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:18,295 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:18,295 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 15:00:18,295 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,295 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:18,295 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:18,295 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration5_Loop [2024-11-19 15:00:18,295 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:18,295 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:18,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,326 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:18,326 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 15:00:18,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,329 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-19 15:00:18,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:18,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:18,344 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:18,344 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#t~ret4=0} Honda state: {f91_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:18,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:18,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,356 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-19 15:00:18,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:18,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:18,369 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 15:00:18,369 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f91_#res=0} Honda state: {f91_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 15:00:18,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-19 15:00:18,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,387 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-19 15:00:18,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 15:00:18,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:18,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-19 15:00:18,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,422 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-19 15:00:18,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 15:00:18,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 15:00:18,438 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 15:00:18,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-19 15:00:18,454 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 15:00:18,454 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 15:00:18,455 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 15:00:18,455 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 15:00:18,455 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 15:00:18,455 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,455 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 15:00:18,455 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 15:00:18,455 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91-2.c_Iteration5_Loop [2024-11-19 15:00:18,455 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 15:00:18,455 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 15:00:18,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 15:00:18,491 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 15:00:18,492 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 15:00:18,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,494 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-19 15:00:18,497 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 [2024-11-19 15:00:18,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:18,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:18,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:18,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:18,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:18,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:18,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:18,509 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:18,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-19 15:00:18,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,521 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-19 15:00:18,525 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 [2024-11-19 15:00:18,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:18,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:18,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:18,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:18,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:18,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:18,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:18,543 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:18,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-19 15:00:18,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,561 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-19 15:00:18,564 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 [2024-11-19 15:00:18,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:18,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:18,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:18,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:18,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:18,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:18,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:18,579 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 15:00:18,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-19 15:00:18,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,595 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-19 15:00:18,598 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 [2024-11-19 15:00:18,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 15:00:18,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 15:00:18,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 15:00:18,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 15:00:18,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 15:00:18,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 15:00:18,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 15:00:18,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 15:00:18,614 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 15:00:18,614 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 15:00:18,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 15:00:18,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 15:00:18,616 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 15:00:18,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-19 15:00:18,619 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 15:00:18,619 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 15:00:18,619 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 15:00:18,619 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f91_#in~x) = -2*f91_#in~x + 201 Supporting invariants [] [2024-11-19 15:00:18,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:18,632 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 15:00:18,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:18,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 15:00:18,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:18,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-19 15:00:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:18,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 15:00:18,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:19,054 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 [2024-11-19 15:00:19,054 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) [2024-11-19 15:00:19,119 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. [2024-11-19 15:00:19,120 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 [2024-11-19 15:00:19,121 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) [2024-11-19 15:00:19,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2024-11-19 15:00:19,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 38 letters. Loop has 8 letters. [2024-11-19 15:00:19,121 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:19,121 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:19,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:19,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 15:00:19,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:19,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 15:00:19,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:19,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:19,482 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 [2024-11-19 15:00:19,482 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) [2024-11-19 15:00:19,669 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. [2024-11-19 15:00:19,670 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 [2024-11-19 15:00:19,670 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) [2024-11-19 15:00:19,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 20 transitions. [2024-11-19 15:00:19,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 20 transitions. Stem has 38 letters. Loop has 8 letters. [2024-11-19 15:00:19,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:19,671 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:19,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:19,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 15:00:19,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:19,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 15:00:19,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:20,047 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 [2024-11-19 15:00:20,047 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) [2024-11-19 15:00:20,118 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. [2024-11-19 15:00:20,118 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 [2024-11-19 15:00:20,119 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) [2024-11-19 15:00:20,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2024-11-19 15:00:20,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 38 letters. Loop has 8 letters. [2024-11-19 15:00:20,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:20,120 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 15:00:20,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 15:00:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:20,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 15:00:20,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 15:00:20,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 15:00:20,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 15:00:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 15:00:20,470 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 [2024-11-19 15:00:20,471 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) [2024-11-19 15:00:20,697 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. [2024-11-19 15:00:20,698 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 [2024-11-19 15:00:20,698 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) [2024-11-19 15:00:20,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 27 transitions. [2024-11-19 15:00:20,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 38 letters. Loop has 8 letters. [2024-11-19 15:00:20,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:20,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 46 letters. Loop has 8 letters. [2024-11-19 15:00:20,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:20,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 27 transitions. Stem has 38 letters. Loop has 16 letters. [2024-11-19 15:00:20,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 15:00:20,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 209 transitions. [2024-11-19 15:00:20,703 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 15:00:20,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 0 states and 0 transitions. [2024-11-19 15:00:20,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-19 15:00:20,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-19 15:00:20,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-19 15:00:20,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 15:00:20,704 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 15:00:20,704 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 15:00:20,704 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 15:00:20,704 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-19 15:00:20,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-19 15:00:20,704 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 15:00:20,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-19 15:00:20,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 03:00:20 BoogieIcfgContainer [2024-11-19 15:00:20,715 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-19 15:00:20,716 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 15:00:20,716 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 15:00:20,716 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 15:00:20,717 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:59:46" (3/4) ... [2024-11-19 15:00:20,719 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 15:00:20,720 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 15:00:20,721 INFO L158 Benchmark]: Toolchain (without parser) took 35216.10ms. Allocated memory is still 197.1MB. Free memory was 165.9MB in the beginning and 56.1MB in the end (delta: 109.8MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2024-11-19 15:00:20,721 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 15:00:20,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.95ms. Allocated memory is still 197.1MB. Free memory was 165.6MB in the beginning and 157.3MB in the end (delta: 8.4MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-19 15:00:20,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.07ms. Allocated memory is still 197.1MB. Free memory was 157.3MB in the beginning and 156.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 15:00:20,722 INFO L158 Benchmark]: Boogie Preprocessor took 31.69ms. Allocated memory is still 197.1MB. Free memory was 156.0MB in the beginning and 154.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 15:00:20,722 INFO L158 Benchmark]: RCFGBuilder took 249.28ms. Allocated memory is still 197.1MB. Free memory was 154.7MB in the beginning and 144.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 15:00:20,722 INFO L158 Benchmark]: BuchiAutomizer took 34676.25ms. Allocated memory is still 197.1MB. Free memory was 144.7MB in the beginning and 56.1MB in the end (delta: 88.7MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2024-11-19 15:00:20,722 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 197.1MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 15:00:20,724 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.95ms. Allocated memory is still 197.1MB. Free memory was 165.6MB in the beginning and 157.3MB in the end (delta: 8.4MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.07ms. Allocated memory is still 197.1MB. Free memory was 157.3MB in the beginning and 156.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.69ms. Allocated memory is still 197.1MB. Free memory was 156.0MB in the beginning and 154.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.28ms. Allocated memory is still 197.1MB. Free memory was 154.7MB in the beginning and 144.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 34676.25ms. Allocated memory is still 197.1MB. Free memory was 144.7MB in the beginning and 56.1MB in the end (delta: 88.7MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 197.1MB. Free memory is still 56.1MB. 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 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 34.6s and 6 iterations. TraceHistogramMax:8. Analysis of lassos took 27.8s. Construction of modules took 0.7s. Büchi inclusion checks took 5.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.1s 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, 251 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 237 mSDsluCounter, 436 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 202 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 938 IncrementalHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 202 mSolverCounterUnsat, 186 mSDtfsCounter, 938 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: 27ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 24.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-19 15:00:20,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-19 15:00:20,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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