./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/GCD3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:14:25,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:14:25,656 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-12 00:14:25,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:14:25,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:14:25,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:14:25,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:14:25,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:14:25,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:14:25,699 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:14:25,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:14:25,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:14:25,702 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:14:25,702 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:14:25,705 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:14:25,706 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:14:25,706 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:14:25,706 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:14:25,707 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:14:25,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:14:25,707 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:14:25,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:14:25,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:14:25,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:14:25,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:14:25,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:14:25,709 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:14:25,709 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:14:25,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:14:25,709 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:14:25,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:14:25,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:14:25,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:14:25,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:14:25,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:14:25,712 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:14:25,713 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2024-10-12 00:14:25,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:14:26,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:14:26,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:14:26,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:14:26,007 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:14:26,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c [2024-10-12 00:14:27,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:14:27,675 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:14:27,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c [2024-10-12 00:14:27,682 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/593adb2a7/f731db012ead4b5ba78211f262d97144/FLAG9062e84f8 [2024-10-12 00:14:28,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/593adb2a7/f731db012ead4b5ba78211f262d97144 [2024-10-12 00:14:28,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:14:28,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:14:28,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:14:28,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:14:28,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:14:28,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a166686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28, skipping insertion in model container [2024-10-12 00:14:28,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,108 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:14:28,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:14:28,297 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:14:28,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:14:28,328 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:14:28,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28 WrapperNode [2024-10-12 00:14:28,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:14:28,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:14:28,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:14:28,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:14:28,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,399 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-10-12 00:14:28,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:14:28,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:14:28,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:14:28,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:14:28,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,413 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,418 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-12 00:14:28,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:14:28,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:14:28,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:14:28,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:14:28,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (1/1) ... [2024-10-12 00:14:28,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:28,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:28,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:28,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:14:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:14:28,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:14:28,617 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:14:28,619 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:14:28,711 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-10-12 00:14:28,711 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:14:28,729 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:14:28,729 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-12 00:14:28,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:14:28 BoogieIcfgContainer [2024-10-12 00:14:28,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:14:28,731 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:14:28,731 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:14:28,735 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:14:28,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:14:28,736 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:14:28" (1/3) ... [2024-10-12 00:14:28,737 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bc3126b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:14:28, skipping insertion in model container [2024-10-12 00:14:28,738 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:14:28,738 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:14:28" (2/3) ... [2024-10-12 00:14:28,738 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bc3126b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:14:28, skipping insertion in model container [2024-10-12 00:14:28,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:14:28,739 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:14:28" (3/3) ... [2024-10-12 00:14:28,740 INFO L332 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2024-10-12 00:14:28,804 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:14:28,804 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:14:28,804 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:14:28,804 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:14:28,805 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:14:28,805 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:14:28,805 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:14:28,806 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:14:28,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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) [2024-10-12 00:14:28,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-12 00:14:28,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:14:28,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:14:28,833 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:14:28,834 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:14:28,835 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:14:28,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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) [2024-10-12 00:14:28,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-12 00:14:28,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:14:28,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:14:28,839 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:14:28,839 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:14:28,846 INFO L745 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 11#L13-2true [2024-10-12 00:14:28,847 INFO L747 eck$LassoCheckResult]: Loop: 11#L13-2true assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 7#L17true assume 0 == main_~y~0#1;main_~y~0#1 := main_~y~0#1; 13#L21-2true assume main_~xtmp~0#1 > 0; 9#L26-2true assume !(main_~xtmp~0#1 >= main_~y~0#1); 15#L26-3true main_~y~0#1 := main_~xtmp~0#1; 4#L25-1true main_~x~0#1 := main_~tmp~0#1; 11#L13-2true [2024-10-12 00:14:28,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:28,853 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-12 00:14:28,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:28,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074089279] [2024-10-12 00:14:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:28,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:28,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:28,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:28,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:28,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1216130396, now seen corresponding path program 1 times [2024-10-12 00:14:28,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:28,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429444284] [2024-10-12 00:14:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:28,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:14:29,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:14:29,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429444284] [2024-10-12 00:14:29,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429444284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:14:29,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:14:29,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:14:29,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938160196] [2024-10-12 00:14:29,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:14:29,064 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:14:29,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:14:29,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:14:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:14:29,101 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-12 00:14:29,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:14:29,127 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2024-10-12 00:14:29,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2024-10-12 00:14:29,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-12 00:14:29,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2024-10-12 00:14:29,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-12 00:14:29,134 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-12 00:14:29,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-10-12 00:14:29,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:14:29,134 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-10-12 00:14:29,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-10-12 00:14:29,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-12 00:14:29,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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) [2024-10-12 00:14:29,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-10-12 00:14:29,158 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-10-12 00:14:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:14:29,164 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-10-12 00:14:29,167 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:14:29,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-10-12 00:14:29,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-12 00:14:29,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:14:29,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:14:29,169 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:14:29,169 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:14:29,169 INFO L745 eck$LassoCheckResult]: Stem: 46#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 47#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 44#L13-2 [2024-10-12 00:14:29,170 INFO L747 eck$LassoCheckResult]: Loop: 44#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 39#L17 assume !(0 == main_~y~0#1); 40#L21 assume !(main_~y~0#1 < 0); 43#L21-2 assume !(main_~xtmp~0#1 > 0); 48#L31-2 assume !(main_~xtmp~0#1 < 0); 49#L31-3 main_~y~0#1 := main_~xtmp~0#1; 45#L25-1 main_~x~0#1 := main_~tmp~0#1; 44#L13-2 [2024-10-12 00:14:29,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-12 00:14:29,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:29,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883031715] [2024-10-12 00:14:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:29,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:29,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:29,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:29,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:29,178 INFO L85 PathProgramCache]: Analyzing trace with hash -900852200, now seen corresponding path program 1 times [2024-10-12 00:14:29,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:29,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011756887] [2024-10-12 00:14:29,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:29,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:14:29,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:14:29,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011756887] [2024-10-12 00:14:29,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011756887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:14:29,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:14:29,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:14:29,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132769787] [2024-10-12 00:14:29,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:14:29,256 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:14:29,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:14:29,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:14:29,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:14:29,260 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) 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) [2024-10-12 00:14:29,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:14:29,272 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2024-10-12 00:14:29,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2024-10-12 00:14:29,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-12 00:14:29,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2024-10-12 00:14:29,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-12 00:14:29,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-10-12 00:14:29,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2024-10-12 00:14:29,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:14:29,274 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2024-10-12 00:14:29,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2024-10-12 00:14:29,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2024-10-12 00:14:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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) [2024-10-12 00:14:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-10-12 00:14:29,276 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-10-12 00:14:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:14:29,277 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-10-12 00:14:29,277 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:14:29,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2024-10-12 00:14:29,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:14:29,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:14:29,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:14:29,282 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-12 00:14:29,282 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:14:29,283 INFO L745 eck$LassoCheckResult]: Stem: 74#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 75#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 72#L13-2 [2024-10-12 00:14:29,283 INFO L747 eck$LassoCheckResult]: Loop: 72#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 67#L17 assume !(0 == main_~y~0#1); 68#L21 assume !(main_~y~0#1 < 0); 71#L21-2 assume main_~xtmp~0#1 > 0; 69#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 70#L26-3 main_~y~0#1 := main_~xtmp~0#1; 73#L25-1 main_~x~0#1 := main_~tmp~0#1; 72#L13-2 [2024-10-12 00:14:29,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:29,283 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-10-12 00:14:29,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:29,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108937228] [2024-10-12 00:14:29,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:29,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:29,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:29,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:29,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:29,302 INFO L85 PathProgramCache]: Analyzing trace with hash -901313945, now seen corresponding path program 1 times [2024-10-12 00:14:29,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:29,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215620644] [2024-10-12 00:14:29,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:29,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:29,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:29,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:29,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:29,344 INFO L85 PathProgramCache]: Analyzing trace with hash 644982885, now seen corresponding path program 1 times [2024-10-12 00:14:29,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:29,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435065386] [2024-10-12 00:14:29,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:29,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:29,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:29,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:29,510 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:29,511 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:29,511 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:29,512 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:29,512 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:14:29,512 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:29,512 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:29,512 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:29,512 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2024-10-12 00:14:29,512 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:29,513 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:29,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,652 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:29,653 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:14:29,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:29,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:29,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:29,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:14:29,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:29,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:29,689 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:29,689 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:29,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-12 00:14:29,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:29,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:29,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:29,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:14:29,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:29,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:29,735 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:29,736 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:29,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-12 00:14:29,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:29,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:29,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:29,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:14:29,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:29,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:29,772 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:29,772 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~xtmp~0#1=0} Honda state: {ULTIMATE.start_main_~xtmp~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:29,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:29,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:29,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:29,786 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:29,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:14:29,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:29,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:29,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-12 00:14:29,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:29,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:29,828 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:29,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:14:29,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:14:29,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:29,879 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:14:29,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:29,884 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:29,884 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:29,884 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:29,884 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:29,884 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:14:29,884 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:29,884 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:29,884 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:29,884 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2024-10-12 00:14:29,884 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:29,885 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:29,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:29,970 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:29,974 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:14:29,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:29,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:29,978 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:29,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:14:29,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:29,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:29,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:29,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:29,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:29,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:29,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:29,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:30,001 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:30,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-12 00:14:30,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,020 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:14:30,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:30,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:30,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:30,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:30,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:30,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:14:30,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:14:30,043 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:30,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-12 00:14:30,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,061 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:14:30,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:30,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:30,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:30,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:30,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:30,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:30,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:30,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:30,087 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:30,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-12 00:14:30,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,106 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-12 00:14:30,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:30,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:30,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:30,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:30,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:30,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:14:30,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:14:30,128 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:30,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-12 00:14:30,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,145 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-12 00:14:30,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:30,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:30,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:30,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:30,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:30,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:30,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:30,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:30,165 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:14:30,170 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:14:30,170 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:14:30,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,178 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-12 00:14:30,181 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:14:30,181 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:14:30,183 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:14:30,184 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-12 00:14:30,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:30,197 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:14:30,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:30,226 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:14:30,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:30,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:14:30,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:14:30,325 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-10-12 00:14:30,327 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.5) 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) [2024-10-12 00:14:30,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-12 00:14:30,421 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.5) 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) Result 26 states and 31 transitions. Complement of second has 9 states. [2024-10-12 00:14:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:14:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) 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) [2024-10-12 00:14:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2024-10-12 00:14:30,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 7 letters. [2024-10-12 00:14:30,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:30,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 9 letters. Loop has 7 letters. [2024-10-12 00:14:30,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:30,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 14 letters. [2024-10-12 00:14:30,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:30,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2024-10-12 00:14:30,432 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-12 00:14:30,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 28 transitions. [2024-10-12 00:14:30,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-10-12 00:14:30,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-10-12 00:14:30,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2024-10-12 00:14:30,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:14:30,436 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-10-12 00:14:30,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2024-10-12 00:14:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2024-10-12 00:14:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 states have internal predecessors, (25), 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) [2024-10-12 00:14:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-10-12 00:14:30,440 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-10-12 00:14:30,440 INFO L425 stractBuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-10-12 00:14:30,441 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:14:30,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2024-10-12 00:14:30,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:14:30,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:14:30,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:14:30,442 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:14:30,442 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-12 00:14:30,443 INFO L745 eck$LassoCheckResult]: Stem: 173#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 174#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 175#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 168#L17 assume !(0 == main_~y~0#1); 178#L21 assume !(main_~y~0#1 < 0); 177#L21-2 assume main_~xtmp~0#1 > 0; 161#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 162#L26-2 [2024-10-12 00:14:30,443 INFO L747 eck$LassoCheckResult]: Loop: 162#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 162#L26-2 [2024-10-12 00:14:30,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:30,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725014, now seen corresponding path program 1 times [2024-10-12 00:14:30,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:30,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469346544] [2024-10-12 00:14:30,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:30,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:30,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:30,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:30,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2024-10-12 00:14:30,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:30,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706708599] [2024-10-12 00:14:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:30,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:30,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:30,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:30,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:30,472 INFO L85 PathProgramCache]: Analyzing trace with hash 297900620, now seen corresponding path program 2 times [2024-10-12 00:14:30,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:30,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562680657] [2024-10-12 00:14:30,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:30,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:30,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:30,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:30,554 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:30,554 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:30,554 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:30,554 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:30,554 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:14:30,555 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,555 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:30,555 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:30,555 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2024-10-12 00:14:30,555 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:30,555 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:30,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,651 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:30,651 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:14:30,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,653 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-12 00:14:30,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:30,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:30,679 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:30,679 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: [] [2024-10-12 00:14:30,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-12 00:14:30,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,699 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-12 00:14:30,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:30,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:30,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:30,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,745 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-12 00:14:30,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:14:30,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:30,888 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:14:30,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-12 00:14:30,895 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:30,895 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:30,895 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:30,895 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:30,895 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:14:30,895 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,895 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:30,895 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:30,895 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2024-10-12 00:14:30,895 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:30,895 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:30,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:30,979 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:30,979 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:14:30,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:30,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:30,981 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:30,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-12 00:14:30,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:30,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:30,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:30,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:30,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:30,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:14:31,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:14:31,004 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:31,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-12 00:14:31,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:31,022 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:31,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-12 00:14:31,025 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:31,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:31,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:31,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:31,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:31,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:14:31,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:14:31,058 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:14:31,073 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-10-12 00:14:31,073 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2024-10-12 00:14:31,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:31,077 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:31,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-12 00:14:31,079 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:14:31,095 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-12 00:14:31,095 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:14:31,095 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2024-10-12 00:14:31,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-12 00:14:31,118 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-12 00:14:31,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:31,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 00:14:31,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:31,234 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:14:31,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:14:31,236 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-12 00:14:31,236 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-12 00:14:31,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 25 states and 30 transitions. Complement of second has 4 states. [2024-10-12 00:14:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-12 00:14:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-12 00:14:31,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-10-12 00:14:31,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2024-10-12 00:14:31,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:31,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 1 letters. [2024-10-12 00:14:31,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:31,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-12 00:14:31,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:31,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2024-10-12 00:14:31,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:14:31,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 30 transitions. [2024-10-12 00:14:31,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-12 00:14:31,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-10-12 00:14:31,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2024-10-12 00:14:31,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:14:31,280 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-10-12 00:14:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2024-10-12 00:14:31,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-10-12 00:14:31,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 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) [2024-10-12 00:14:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-10-12 00:14:31,284 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-10-12 00:14:31,285 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-10-12 00:14:31,285 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-12 00:14:31,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2024-10-12 00:14:31,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-12 00:14:31,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:14:31,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:14:31,287 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:14:31,287 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:14:31,287 INFO L745 eck$LassoCheckResult]: Stem: 268#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 269#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 274#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 255#L17 assume !(0 == main_~y~0#1); 256#L21 assume !(main_~y~0#1 < 0); 263#L21-2 assume main_~xtmp~0#1 > 0; 259#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 260#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 262#L26-3 [2024-10-12 00:14:31,287 INFO L747 eck$LassoCheckResult]: Loop: 262#L26-3 main_~y~0#1 := main_~xtmp~0#1; 270#L25-1 main_~x~0#1 := main_~tmp~0#1; 265#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 266#L17 assume !(0 == main_~y~0#1); 278#L21 assume !(main_~y~0#1 < 0); 277#L21-2 assume main_~xtmp~0#1 > 0; 276#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 262#L26-3 [2024-10-12 00:14:31,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:31,288 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 1 times [2024-10-12 00:14:31,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:31,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188382904] [2024-10-12 00:14:31,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:31,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:31,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:31,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:31,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:31,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1601495771, now seen corresponding path program 2 times [2024-10-12 00:14:31,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:31,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812529437] [2024-10-12 00:14:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:31,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:31,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:31,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:31,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170556, now seen corresponding path program 1 times [2024-10-12 00:14:31,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:31,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811708104] [2024-10-12 00:14:31,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:31,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:14:31,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:14:31,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811708104] [2024-10-12 00:14:31,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811708104] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:14:31,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685983529] [2024-10-12 00:14:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:31,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:14:31,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:31,430 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:14:31,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-12 00:14:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:31,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:14:31,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:14:31,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:14:31,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:14:31,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685983529] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:14:31,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:14:31,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-10-12 00:14:31,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288526341] [2024-10-12 00:14:31,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:14:31,618 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:31,618 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:31,618 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:31,618 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:31,618 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:14:31,618 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,619 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:31,619 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:31,619 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2024-10-12 00:14:31,619 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:31,619 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:31,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,632 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,696 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:31,696 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:14:31,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:31,699 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:31,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-12 00:14:31,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:31,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:31,721 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:31,721 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:31,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-12 00:14:31,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:31,739 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:31,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-12 00:14:31,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:31,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:31,762 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:31,762 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: [] [2024-10-12 00:14:31,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:31,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:31,774 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:31,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-12 00:14:31,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:31,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:31,792 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:31,792 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:31,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-12 00:14:31,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:31,811 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:31,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-12 00:14:31,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:31,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:31,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:31,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:31,845 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:31,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-12 00:14:31,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:14:31,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:31,969 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:14:31,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:31,974 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:31,974 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:31,974 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:31,974 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:31,974 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:14:31,974 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:31,974 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:31,974 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:31,975 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2024-10-12 00:14:31,975 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:31,975 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:31,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:31,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,031 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:32,032 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:14:32,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,034 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-12 00:14:32,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:32,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:32,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:32,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:32,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:32,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:32,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:32,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:32,052 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:32,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-12 00:14:32,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,065 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-12 00:14:32,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:32,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:32,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:32,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:32,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:32,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:32,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:32,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:32,081 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:32,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-12 00:14:32,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,098 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-12 00:14:32,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:32,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:32,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:32,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:32,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:32,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:14:32,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:14:32,116 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:32,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:32,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,132 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-12 00:14:32,152 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 [2024-10-12 00:14:32,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-12 00:14:32,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:32,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:32,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:32,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:32,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:32,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:32,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:32,168 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:14:32,172 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:14:32,173 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:14:32,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,175 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-12 00:14:32,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:14:32,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:14:32,177 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:14:32,177 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 [] [2024-10-12 00:14:32,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:32,192 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:14:32,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:32,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:14:32,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:32,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:14:32,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:14:32,258 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:14:32,258 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-12 00:14:32,285 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 59 states and 73 transitions. Complement of second has 8 states. [2024-10-12 00:14:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-10-12 00:14:32,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-12 00:14:32,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2024-10-12 00:14:32,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 7 letters. [2024-10-12 00:14:32,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:32,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 7 letters. [2024-10-12 00:14:32,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:32,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 14 letters. [2024-10-12 00:14:32,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:32,288 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 73 transitions. [2024-10-12 00:14:32,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-12 00:14:32,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 68 transitions. [2024-10-12 00:14:32,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-10-12 00:14:32,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2024-10-12 00:14:32,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2024-10-12 00:14:32,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:14:32,291 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2024-10-12 00:14:32,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2024-10-12 00:14:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2024-10-12 00:14:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 46 states have internal predecessors, (59), 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) [2024-10-12 00:14:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2024-10-12 00:14:32,295 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 59 transitions. [2024-10-12 00:14:32,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:14:32,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 00:14:32,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-12 00:14:32,296 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 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) [2024-10-12 00:14:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:14:32,359 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2024-10-12 00:14:32,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2024-10-12 00:14:32,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-12 00:14:32,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 37 transitions. [2024-10-12 00:14:32,361 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-10-12 00:14:32,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-10-12 00:14:32,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2024-10-12 00:14:32,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:14:32,361 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-10-12 00:14:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2024-10-12 00:14:32,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2024-10-12 00:14:32,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 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) [2024-10-12 00:14:32,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-10-12 00:14:32,364 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-10-12 00:14:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 00:14:32,365 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-10-12 00:14:32,365 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-12 00:14:32,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2024-10-12 00:14:32,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-12 00:14:32,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:14:32,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:14:32,366 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:14:32,366 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:14:32,367 INFO L745 eck$LassoCheckResult]: Stem: 610#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 611#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 615#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 621#L17 assume !(0 == main_~y~0#1); 620#L21 assume !(main_~y~0#1 < 0); 619#L21-2 assume main_~xtmp~0#1 > 0; 618#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 617#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 606#L26-3 [2024-10-12 00:14:32,367 INFO L747 eck$LassoCheckResult]: Loop: 606#L26-3 main_~y~0#1 := main_~xtmp~0#1; 616#L25-1 main_~x~0#1 := main_~tmp~0#1; 608#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 609#L17 assume !(0 == main_~y~0#1); 624#L21 assume !(main_~y~0#1 < 0); 614#L21-2 assume main_~xtmp~0#1 > 0; 603#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 604#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 606#L26-3 [2024-10-12 00:14:32,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 2 times [2024-10-12 00:14:32,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:32,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326865562] [2024-10-12 00:14:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:32,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:32,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:32,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:32,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:32,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1893238745, now seen corresponding path program 1 times [2024-10-12 00:14:32,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:32,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212816095] [2024-10-12 00:14:32,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:32,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:32,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:32,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:32,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:32,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1545352926, now seen corresponding path program 2 times [2024-10-12 00:14:32,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:32,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741128126] [2024-10-12 00:14:32,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:32,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:32,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:32,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:32,451 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:32,451 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:32,451 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:32,451 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:32,452 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:14:32,452 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,452 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:32,452 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:32,452 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2024-10-12 00:14:32,452 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:32,452 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:32,453 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,513 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:32,514 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:14:32,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,516 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-12 00:14:32,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:32,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:32,530 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:32,531 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:32,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:32,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,542 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-12 00:14:32,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:32,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:32,562 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:32,562 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:32,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-12 00:14:32,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,574 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-12 00:14:32,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:32,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:32,587 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:32,587 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:32,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:32,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,599 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-12 00:14:32,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:32,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:32,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:32,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,626 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-12 00:14:32,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:14:32,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:32,725 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:14:32,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:32,731 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:32,731 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:32,731 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:32,731 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:32,731 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:14:32,731 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,731 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:32,731 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:32,731 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2024-10-12 00:14:32,731 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:32,731 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:32,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:32,790 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:32,790 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:14:32,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,792 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-12 00:14:32,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:32,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:32,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:32,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:32,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:32,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:32,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:32,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:32,806 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:32,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:32,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,819 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-12 00:14:32,821 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:32,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:32,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:32,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:32,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:32,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:32,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:32,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:32,836 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:14:32,839 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-12 00:14:32,839 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:14:32,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:32,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:32,841 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:32,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-12 00:14:32,845 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:14:32,845 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:14:32,845 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:14:32,845 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 [] [2024-10-12 00:14:32,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-10-12 00:14:32,861 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:14:32,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:32,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:14:32,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:32,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:14:32,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:32,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:14:32,953 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-12 00:14:32,953 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-12 00:14:32,980 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 46 states and 55 transitions. Complement of second has 6 states. [2024-10-12 00:14:32,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-12 00:14:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-12 00:14:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-10-12 00:14:32,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 8 letters. [2024-10-12 00:14:32,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:32,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 8 letters. [2024-10-12 00:14:32,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:32,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 16 letters. [2024-10-12 00:14:32,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:32,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2024-10-12 00:14:32,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-12 00:14:32,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 46 transitions. [2024-10-12 00:14:32,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-10-12 00:14:32,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-10-12 00:14:32,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2024-10-12 00:14:32,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:14:32,985 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2024-10-12 00:14:32,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2024-10-12 00:14:32,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2024-10-12 00:14:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 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) [2024-10-12 00:14:32,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2024-10-12 00:14:32,988 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-10-12 00:14:32,988 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-10-12 00:14:32,988 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-12 00:14:32,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2024-10-12 00:14:32,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-10-12 00:14:32,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:14:32,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:14:32,990 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:14:32,990 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-12 00:14:32,990 INFO L745 eck$LassoCheckResult]: Stem: 755#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 756#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 757#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 770#L17 assume !(0 == main_~y~0#1); 768#L21 assume !(main_~y~0#1 < 0); 766#L21-2 assume main_~xtmp~0#1 > 0; 764#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 763#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 760#L26-3 main_~y~0#1 := main_~xtmp~0#1; 753#L25-1 main_~x~0#1 := main_~tmp~0#1; 751#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 742#L17 assume !(0 == main_~y~0#1); 743#L21 assume !(main_~y~0#1 < 0); 749#L21-2 assume main_~xtmp~0#1 > 0; 746#L26-2 [2024-10-12 00:14:32,990 INFO L747 eck$LassoCheckResult]: Loop: 746#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 746#L26-2 [2024-10-12 00:14:32,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash 186101220, now seen corresponding path program 3 times [2024-10-12 00:14:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:32,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103076956] [2024-10-12 00:14:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:32,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:32,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:33,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:33,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:33,008 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2024-10-12 00:14:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:33,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364433016] [2024-10-12 00:14:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:33,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:33,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:33,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170558, now seen corresponding path program 4 times [2024-10-12 00:14:33,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:14:33,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035305384] [2024-10-12 00:14:33,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:14:33,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:14:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:33,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:14:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:14:33,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:14:33,131 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:33,131 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:33,131 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:33,131 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:33,131 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:14:33,132 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,132 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:33,132 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:33,132 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2024-10-12 00:14:33,132 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:33,132 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:33,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,222 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:33,222 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:14:33,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,224 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-12 00:14:33,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:33,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:33,240 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:33,240 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:33,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-10-12 00:14:33,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,253 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-12 00:14:33,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:33,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:33,265 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:33,265 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:33,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-10-12 00:14:33,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,277 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-12 00:14:33,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:33,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:33,296 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:33,296 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:33,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-12 00:14:33,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,308 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-12 00:14:33,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:33,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:33,320 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:33,321 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:33,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-12 00:14:33,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,333 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-12 00:14:33,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:33,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:33,346 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:14:33,346 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:14:33,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:33,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,358 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-12 00:14:33,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:14:33,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:33,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-10-12 00:14:33,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,390 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-12 00:14:33,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:14:33,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:14:33,496 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:14:33,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:33,501 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:14:33,501 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:14:33,501 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:14:33,501 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:14:33,501 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:14:33,501 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,501 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:14:33,501 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:14:33,501 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2024-10-12 00:14:33,501 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:14:33,502 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:14:33,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:14:33,580 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:14:33,580 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:14:33,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,583 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-12 00:14:33,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:33,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:33,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:14:33,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:33,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:33,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:33,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:14:33,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:14:33,600 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:33,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-10-12 00:14:33,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,617 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-12 00:14:33,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:33,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:33,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:33,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:33,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:33,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:14:33,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:14:33,634 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:14:33,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-10-12 00:14:33,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,651 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-12 00:14:33,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:14:33,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:14:33,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:14:33,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:14:33,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:14:33,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-12 00:14:33,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-12 00:14:33,675 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:14:33,686 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-10-12 00:14:33,686 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-12 00:14:33,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:14:33,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:14:33,689 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:14:33,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-12 00:14:33,691 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:14:33,704 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-12 00:14:33,705 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:14:33,705 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2024-10-12 00:14:33,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:33,722 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-12 00:14:33,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:33,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 00:14:33,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:33,799 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:14:33,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:14:33,800 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-12 00:14:33,800 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-12 00:14:33,826 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 29 states and 35 transitions. Complement of second has 4 states. [2024-10-12 00:14:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-12 00:14:33,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-12 00:14:33,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-12 00:14:33,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 14 letters. Loop has 1 letters. [2024-10-12 00:14:33,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:33,828 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:14:33,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:33,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 00:14:33,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:33,896 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:14:33,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:14:33,897 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-12 00:14:33,897 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-12 00:14:33,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 29 states and 35 transitions. Complement of second has 4 states. [2024-10-12 00:14:33,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-12 00:14:33,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-12 00:14:33,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-12 00:14:33,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 14 letters. Loop has 1 letters. [2024-10-12 00:14:33,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:33,925 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:14:33,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:14:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:33,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 00:14:33,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:34,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-10-12 00:14:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:14:34,019 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:14:34,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:14:34,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:14:34,020 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-10-12 00:14:34,020 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-12 00:14:34,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-12 00:14:34,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-12 00:14:34,066 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 30 states and 36 transitions. Complement of second has 3 states. [2024-10-12 00:14:34,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-10-12 00:14:34,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-12 00:14:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-10-12 00:14:34,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 14 letters. Loop has 1 letters. [2024-10-12 00:14:34,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:34,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 15 letters. Loop has 1 letters. [2024-10-12 00:14:34,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:34,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2024-10-12 00:14:34,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:14:34,068 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 36 transitions. [2024-10-12 00:14:34,068 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:14:34,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2024-10-12 00:14:34,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:14:34,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:14:34,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:14:34,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:14:34,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:14:34,069 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:14:34,069 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:14:34,069 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-12 00:14:34,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:14:34,069 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:14:34,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:14:34,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:14:34 BoogieIcfgContainer [2024-10-12 00:14:34,076 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:14:34,077 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:14:34,077 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:14:34,077 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:14:34,077 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:14:28" (3/4) ... [2024-10-12 00:14:34,079 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:14:34,080 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:14:34,080 INFO L158 Benchmark]: Toolchain (without parser) took 5999.49ms. Allocated memory was 161.5MB in the beginning and 228.6MB in the end (delta: 67.1MB). Free memory was 91.6MB in the beginning and 188.8MB in the end (delta: -97.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:14:34,080 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 161.5MB. Free memory was 120.2MB in the beginning and 120.0MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:14:34,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.60ms. Allocated memory is still 161.5MB. Free memory was 91.5MB in the beginning and 80.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 00:14:34,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.64ms. Allocated memory is still 161.5MB. Free memory was 80.3MB in the beginning and 132.9MB in the end (delta: -52.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-10-12 00:14:34,081 INFO L158 Benchmark]: Boogie Preprocessor took 47.90ms. Allocated memory is still 161.5MB. Free memory was 132.9MB in the beginning and 132.0MB in the end (delta: 978.0kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 00:14:34,081 INFO L158 Benchmark]: RCFGBuilder took 281.20ms. Allocated memory is still 161.5MB. Free memory was 132.0MB in the beginning and 121.5MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-12 00:14:34,082 INFO L158 Benchmark]: BuchiAutomizer took 5345.56ms. Allocated memory was 161.5MB in the beginning and 228.6MB in the end (delta: 67.1MB). Free memory was 121.5MB in the beginning and 188.8MB in the end (delta: -67.3MB). Peak memory consumption was 565.2kB. Max. memory is 16.1GB. [2024-10-12 00:14:34,082 INFO L158 Benchmark]: Witness Printer took 2.96ms. Allocated memory is still 228.6MB. Free memory is still 188.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:14:34,083 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 161.5MB. Free memory was 120.2MB in the beginning and 120.0MB in the end (delta: 162.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.60ms. Allocated memory is still 161.5MB. Free memory was 91.5MB in the beginning and 80.3MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.64ms. Allocated memory is still 161.5MB. Free memory was 80.3MB in the beginning and 132.9MB in the end (delta: -52.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.90ms. Allocated memory is still 161.5MB. Free memory was 132.9MB in the beginning and 132.0MB in the end (delta: 978.0kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 281.20ms. Allocated memory is still 161.5MB. Free memory was 132.0MB in the beginning and 121.5MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5345.56ms. Allocated memory was 161.5MB in the beginning and 228.6MB in the end (delta: 67.1MB). Free memory was 121.5MB in the beginning and 188.8MB in the end (delta: -67.3MB). Peak memory consumption was 565.2kB. Max. memory is 16.1GB. * Witness Printer took 2.96ms. Allocated memory is still 228.6MB. Free memory is still 188.8MB. 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 8 terminating modules (3 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function ((((long) 2 * xtmp) + ((long) -2 * y)) + 1) and consists of 3 locations. One deterministic module has affine ranking function xtmp and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function ((((long) 2 * xtmp) + ((long) -2 * y)) + 1) and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 4.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 28 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 195 IncrementalHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 65 mSDtfsCounter, 195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf92 smp95 dnf100 smp100 tf105 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-12 00:14:34,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-12 00:14:34,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE