./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/LogAG.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/LogAG.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 68bdf78f6f996480ccfcf11b22cc3b7892db15596cae3edf06123d71c4506b1f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:57:58,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:57:58,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-13 16:57:58,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:57:58,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:57:58,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:57:58,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:57:58,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:57:58,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:57:58,702 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:57:58,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:57:58,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:57:58,703 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:57:58,704 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 16:57:58,706 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 16:57:58,706 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 16:57:58,706 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 16:57:58,707 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 16:57:58,707 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 16:57:58,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:57:58,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 16:57:58,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:57:58,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:57:58,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 16:57:58,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 16:57:58,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 16:57:58,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:57:58,713 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:57:58,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:57:58,713 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 16:57:58,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:57:58,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:57:58,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:57:58,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:57:58,714 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:57:58,715 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 16:57:58,715 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68bdf78f6f996480ccfcf11b22cc3b7892db15596cae3edf06123d71c4506b1f [2024-10-13 16:57:58,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:57:58,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:57:58,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:57:58,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:57:58,998 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:57:58,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/LogAG.c [2024-10-13 16:58:00,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:58:00,558 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:58:00,559 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/LogAG.c [2024-10-13 16:58:00,565 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a22faae/b7dc7fe8928a42148319f9e860ab410b/FLAG023a02397 [2024-10-13 16:58:00,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a22faae/b7dc7fe8928a42148319f9e860ab410b [2024-10-13 16:58:00,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:58:00,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:58:00,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:58:00,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:58:00,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:58:00,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6d1bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00, skipping insertion in model container [2024-10-13 16:58:00,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:58:00,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:58:00,777 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:58:00,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:58:00,807 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:58:00,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00 WrapperNode [2024-10-13 16:58:00,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:58:00,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:58:00,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:58:00,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:58:00,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,835 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-10-13 16:58:00,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:58:00,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:58:00,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:58:00,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:58:00,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,852 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-13 16:58:00,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:58:00,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:58:00,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:58:00,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:58:00,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (1/1) ... [2024-10-13 16:58:00,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:00,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:00,897 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) [2024-10-13 16:58:00,899 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 [2024-10-13 16:58:00,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:58:00,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:58:00,999 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:58:01,001 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:58:01,047 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-13 16:58:01,047 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:58:01,060 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:58:01,060 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 16:58:01,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:01 BoogieIcfgContainer [2024-10-13 16:58:01,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:58:01,062 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 16:58:01,062 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 16:58:01,065 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 16:58:01,065 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:58:01,065 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 04:58:00" (1/3) ... [2024-10-13 16:58:01,066 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7dd442ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:58:01, skipping insertion in model container [2024-10-13 16:58:01,066 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:58:01,066 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:00" (2/3) ... [2024-10-13 16:58:01,067 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7dd442ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:58:01, skipping insertion in model container [2024-10-13 16:58:01,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:58:01,067 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:01" (3/3) ... [2024-10-13 16:58:01,068 INFO L332 chiAutomizerObserver]: Analyzing ICFG LogAG.c [2024-10-13 16:58:01,138 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 16:58:01,138 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 16:58:01,138 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 16:58:01,138 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 16:58:01,138 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 16:58:01,138 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 16:58:01,138 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 16:58:01,139 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 16:58:01,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:01,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:58:01,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:58:01,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:58:01,159 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 16:58:01,159 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 16:58:01,160 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 16:58:01,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:01,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:58:01,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:58:01,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:58:01,162 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 16:58:01,162 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 16:58:01,167 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 5#L13-2true [2024-10-13 16:58:01,168 INFO L747 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1 - 2;main_~restmp~0#1 := 0; 3#L17-2true assume !(main_~xtmp~0#1 > 1); 9#L17-3true main_~x~0#1 := 1 + main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 5#L13-2true [2024-10-13 16:58:01,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:01,173 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-13 16:58:01,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:01,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419798202] [2024-10-13 16:58:01,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:01,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:58:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:01,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:58:01,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:01,268 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2024-10-13 16:58:01,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:01,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477062888] [2024-10-13 16:58:01,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:01,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:01,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:58:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:01,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:58:01,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:01,305 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2024-10-13 16:58:01,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:01,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895736195] [2024-10-13 16:58:01,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:01,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:01,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:58:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:01,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:58:01,476 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:58:01,477 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:58:01,477 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:58:01,477 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:58:01,477 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:58:01,477 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:01,477 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:58:01,477 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:58:01,478 INFO L132 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration1_Loop [2024-10-13 16:58:01,478 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:58:01,478 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:58:01,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,546 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,631 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:58:01,632 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:58:01,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:01,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:01,637 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) [2024-10-13 16:58:01,638 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 [2024-10-13 16:58:01,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:58:01,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:01,679 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 [2024-10-13 16:58:01,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:01,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:01,683 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) [2024-10-13 16:58:01,685 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 [2024-10-13 16:58:01,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:58:01,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:01,702 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:58:01,712 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 [2024-10-13 16:58:01,713 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:58:01,713 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:58:01,713 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:58:01,714 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:58:01,714 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:58:01,714 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:01,714 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:58:01,714 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:58:01,714 INFO L132 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration1_Loop [2024-10-13 16:58:01,714 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:58:01,714 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:58:01,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:01,825 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:58:01,830 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:58:01,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:01,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:01,833 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) [2024-10-13 16:58:01,835 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 [2024-10-13 16:58:01,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:58:01,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:58:01,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:58:01,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:58:01,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:58:01,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:58:01,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:58:01,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:58:01,860 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:58:01,869 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 16:58:01,869 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 16:58:01,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:01,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:01,888 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) [2024-10-13 16:58:01,890 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 [2024-10-13 16:58:01,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:58:01,890 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:58:01,891 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:58:01,891 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-13 16:58:01,902 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 [2024-10-13 16:58:01,906 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:58:01,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:01,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:58:01,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:01,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:58:01,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:01,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:58:02,031 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-13 16:58:02,033 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:02,100 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 31 transitions. Complement of second has 6 states. [2024-10-13 16:58:02,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-13 16:58:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:58:02,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:02,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2024-10-13 16:58:02,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2024-10-13 16:58:02,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:02,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2024-10-13 16:58:02,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:02,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2024-10-13 16:58:02,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:02,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 31 transitions. [2024-10-13 16:58:02,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-13 16:58:02,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2024-10-13 16:58:02,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-10-13 16:58:02,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-13 16:58:02,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-10-13 16:58:02,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:58:02,164 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-13 16:58:02,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-10-13 16:58:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2024-10-13 16:58:02,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2024-10-13 16:58:02,187 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-10-13 16:58:02,187 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2024-10-13 16:58:02,188 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 16:58:02,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2024-10-13 16:58:02,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-13 16:58:02,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:58:02,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:58:02,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 16:58:02,190 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-13 16:58:02,190 INFO L745 eck$LassoCheckResult]: Stem: 73#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 74#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 71#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1 - 2;main_~restmp~0#1 := 0; 68#L17-2 [2024-10-13 16:58:02,190 INFO L747 eck$LassoCheckResult]: Loop: 68#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 68#L17-2 [2024-10-13 16:58:02,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:02,192 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-13 16:58:02,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:02,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51197391] [2024-10-13 16:58:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:02,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:58:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:58:02,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2024-10-13 16:58:02,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:02,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192556223] [2024-10-13 16:58:02,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:02,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:58:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:58:02,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:02,223 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2024-10-13 16:58:02,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:02,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406818170] [2024-10-13 16:58:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:02,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:58:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:58:02,260 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:58:02,260 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:58:02,260 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:58:02,260 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:58:02,261 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:58:02,261 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,261 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:58:02,261 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:58:02,261 INFO L132 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration2_Loop [2024-10-13 16:58:02,261 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:58:02,261 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:58:02,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,325 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:58:02,325 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:58:02,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,327 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) [2024-10-13 16:58:02,328 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 [2024-10-13 16:58:02,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:58:02,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:02,348 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:58:02,348 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:58:02,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-13 16:58:02,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,361 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) [2024-10-13 16:58:02,363 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 [2024-10-13 16:58:02,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:58:02,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:02,397 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 [2024-10-13 16:58:02,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,400 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) [2024-10-13 16:58:02,401 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 [2024-10-13 16:58:02,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:58:02,402 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:02,438 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:58:02,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-13 16:58:02,443 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:58:02,444 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:58:02,444 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:58:02,444 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:58:02,444 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:58:02,444 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,444 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:58:02,444 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:58:02,444 INFO L132 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration2_Loop [2024-10-13 16:58:02,444 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:58:02,444 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:58:02,446 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,508 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:58:02,508 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:58:02,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,510 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) [2024-10-13 16:58:02,511 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 [2024-10-13 16:58:02,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:58:02,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:58:02,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:58:02,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:58:02,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:58:02,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:58:02,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:58:02,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:58:02,530 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:58:02,533 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-13 16:58:02,533 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-13 16:58:02,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,535 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) [2024-10-13 16:58:02,536 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 [2024-10-13 16:58:02,536 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:58:02,536 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:58:02,536 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:58:02,536 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2024-10-13 16:58:02,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-13 16:58:02,548 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:58:02,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:02,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:58:02,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:02,571 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:58:02,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:58:02,572 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-13 16:58:02,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:02,583 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 5 states. [2024-10-13 16:58:02,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:58:02,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-13 16:58:02,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2024-10-13 16:58:02,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:02,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2024-10-13 16:58:02,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:02,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2024-10-13 16:58:02,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:02,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2024-10-13 16:58:02,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-13 16:58:02,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 9 states and 12 transitions. [2024-10-13 16:58:02,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-10-13 16:58:02,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-10-13 16:58:02,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-10-13 16:58:02,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:58:02,586 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-10-13 16:58:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-10-13 16:58:02,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2024-10-13 16:58:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-10-13 16:58:02,588 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-13 16:58:02,588 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-10-13 16:58:02,588 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 16:58:02,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2024-10-13 16:58:02,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-13 16:58:02,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:58:02,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:58:02,589 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-10-13 16:58:02,589 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-13 16:58:02,590 INFO L745 eck$LassoCheckResult]: Stem: 123#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0; 121#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1 - 2;main_~restmp~0#1 := 0; 119#L17-2 assume !(main_~xtmp~0#1 > 1); 120#L17-3 main_~x~0#1 := 1 + main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1; 122#L13-2 assume !!(main_~x~0#1 > 1);main_~xtmp~0#1 := main_~x~0#1 - 2;main_~restmp~0#1 := 0; 118#L17-2 [2024-10-13 16:58:02,590 INFO L747 eck$LassoCheckResult]: Loop: 118#L17-2 assume !!(main_~xtmp~0#1 > 1);main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1; 118#L17-2 [2024-10-13 16:58:02,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:02,590 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times [2024-10-13 16:58:02,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:02,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375097575] [2024-10-13 16:58:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:02,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,600 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:58:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:58:02,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:02,609 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2024-10-13 16:58:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:02,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447636007] [2024-10-13 16:58:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:02,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:58:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:58:02,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:58:02,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:02,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1810787031, now seen corresponding path program 1 times [2024-10-13 16:58:02,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:58:02,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691057819] [2024-10-13 16:58:02,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:58:02,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:58:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:58:02,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:58:02,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691057819] [2024-10-13 16:58:02,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691057819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:58:02,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:58:02,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:58:02,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56893829] [2024-10-13 16:58:02,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:58:02,770 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:58:02,771 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:58:02,771 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:58:02,771 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:58:02,771 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:58:02,771 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,771 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:58:02,771 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:58:02,771 INFO L132 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration3_Loop [2024-10-13 16:58:02,771 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:58:02,771 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:58:02,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:02,839 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:58:02,839 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:58:02,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,841 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) [2024-10-13 16:58:02,843 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 [2024-10-13 16:58:02,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:58:02,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:02,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-13 16:58:02,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,877 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) [2024-10-13 16:58:02,879 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 [2024-10-13 16:58:02,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:58:02,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:02,914 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:58:02,915 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0#1=0} Honda state: {ULTIMATE.start_main_~restmp~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0#1=2}, {ULTIMATE.start_main_~restmp~0#1=-8}, {ULTIMATE.start_main_~restmp~0#1=7}] Lambdas: [5, 1, 1] Nus: [1, 0] [2024-10-13 16:58:02,929 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 [2024-10-13 16:58:02,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,931 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) [2024-10-13 16:58:02,932 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 [2024-10-13 16:58:02,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:58:02,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:02,957 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:58:02,957 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:58:02,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-13 16:58:02,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:02,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:02,974 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) [2024-10-13 16:58:02,976 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 [2024-10-13 16:58:02,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:58:02,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:03,005 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 [2024-10-13 16:58:03,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:03,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:03,007 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) [2024-10-13 16:58:03,009 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 [2024-10-13 16:58:03,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:58:03,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:58:03,041 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:58:03,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-13 16:58:03,046 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:58:03,046 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:58:03,046 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:58:03,046 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:58:03,046 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:58:03,046 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:03,046 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:58:03,046 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:58:03,046 INFO L132 ssoRankerPreferences]: Filename of dumped script: LogAG.c_Iteration3_Loop [2024-10-13 16:58:03,046 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:58:03,046 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:58:03,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:03,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:03,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:03,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:58:03,113 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:58:03,113 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:58:03,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:03,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:03,115 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) [2024-10-13 16:58:03,116 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 [2024-10-13 16:58:03,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:58:03,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:58:03,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:58:03,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:58:03,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:58:03,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:58:03,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:58:03,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:58:03,132 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:58:03,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-13 16:58:03,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:03,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:03,149 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) [2024-10-13 16:58:03,152 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 [2024-10-13 16:58:03,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:58:03,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:58:03,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:58:03,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:58:03,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:58:03,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:58:03,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:58:03,172 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:58:03,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-13 16:58:03,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:03,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:03,190 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) [2024-10-13 16:58:03,191 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 [2024-10-13 16:58:03,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:58:03,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:58:03,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:58:03,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:58:03,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:58:03,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:58:03,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:58:03,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:58:03,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:58:03,214 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 16:58:03,214 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 16:58:03,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:58:03,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:58:03,216 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) [2024-10-13 16:58:03,218 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 [2024-10-13 16:58:03,218 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:58:03,219 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:58:03,219 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:58:03,219 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2024-10-13 16:58:03,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-13 16:58:03,235 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:58:03,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:03,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:58:03,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:03,278 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:58:03,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:58:03,279 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-13 16:58:03,279 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:03,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 5 states. [2024-10-13 16:58:03,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:58:03,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:03,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-13 16:58:03,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2024-10-13 16:58:03,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:03,289 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-13 16:58:03,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:03,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:58:03,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:03,321 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:58:03,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:58:03,322 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-13 16:58:03,322 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:03,329 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 5 states. [2024-10-13 16:58:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:58:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:03,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-13 16:58:03,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2024-10-13 16:58:03,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:03,333 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-13 16:58:03,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:58:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:03,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:58:03,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:58:03,367 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:58:03,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:58:03,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:58:03,368 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-13 16:58:03,368 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:03,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 11 transitions. Complement of second has 4 states. [2024-10-13 16:58:03,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:58:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-13 16:58:03,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2024-10-13 16:58:03,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:03,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2024-10-13 16:58:03,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:03,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-13 16:58:03,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:58:03,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2024-10-13 16:58:03,382 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:58:03,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2024-10-13 16:58:03,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 16:58:03,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 16:58:03,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 16:58:03,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:58:03,383 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:58:03,383 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:58:03,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:58:03,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:58:03,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:58:03,388 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:58:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 16:58:03,390 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-13 16:58:03,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-13 16:58:03,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:58:03,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 16:58:03,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 16:58:03,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 16:58:03,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 16:58:03,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:58:03,391 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:58:03,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:58:03,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 16:58:03,392 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:58:03,392 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 16:58:03,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-13 16:58:03,392 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:58:03,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-13 16:58:03,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 04:58:03 BoogieIcfgContainer [2024-10-13 16:58:03,398 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 16:58:03,399 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:58:03,399 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:58:03,399 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:58:03,399 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:01" (3/4) ... [2024-10-13 16:58:03,401 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 16:58:03,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:58:03,403 INFO L158 Benchmark]: Toolchain (without parser) took 2821.34ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 83.3MB in the beginning and 103.3MB in the end (delta: -20.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-13 16:58:03,403 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 153.1MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:58:03,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.11ms. Allocated memory is still 153.1MB. Free memory was 83.1MB in the beginning and 72.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 16:58:03,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.20ms. Allocated memory is still 153.1MB. Free memory was 72.0MB in the beginning and 70.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:58:03,404 INFO L158 Benchmark]: Boogie Preprocessor took 25.66ms. Allocated memory is still 153.1MB. Free memory was 70.8MB in the beginning and 69.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:58:03,404 INFO L158 Benchmark]: RCFGBuilder took 198.01ms. Allocated memory is still 153.1MB. Free memory was 69.2MB in the beginning and 60.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 16:58:03,405 INFO L158 Benchmark]: BuchiAutomizer took 2336.68ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 60.4MB in the beginning and 103.3MB in the end (delta: -43.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 16:58:03,405 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 205.5MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:58:03,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 153.1MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.11ms. Allocated memory is still 153.1MB. Free memory was 83.1MB in the beginning and 72.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.20ms. Allocated memory is still 153.1MB. Free memory was 72.0MB in the beginning and 70.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.66ms. Allocated memory is still 153.1MB. Free memory was 70.8MB in the beginning and 69.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 198.01ms. Allocated memory is still 153.1MB. Free memory was 69.2MB in the beginning and 60.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2336.68ms. Allocated memory was 153.1MB in the beginning and 205.5MB in the end (delta: 52.4MB). Free memory was 60.4MB in the beginning and 103.3MB in the end (delta: -43.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 205.5MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 17 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax172 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq155 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-13 16:58:03,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-13 16:58:03,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-13 16:58:03,836 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