./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/gcd01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/gcd01-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ceea5216a7b51ee21eab36f0e9b129c25f18193871fb4ca0aa52ef8740fc0ce8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:17:46,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:17:46,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:17:46,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:17:46,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:17:46,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:17:46,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:17:46,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:17:46,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:17:46,721 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:17:46,721 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:17:46,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:17:46,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:17:46,721 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:17:46,721 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:17:46,721 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:17:46,721 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:17:46,721 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:17:46,721 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:17:46,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:17:46,722 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:17:46,723 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:17:46,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:17:46,723 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:17:46,723 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:17:46,723 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:17:46,723 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:17:46,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:17:46,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:17:46,723 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:17:46,723 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:17:46,724 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceea5216a7b51ee21eab36f0e9b129c25f18193871fb4ca0aa52ef8740fc0ce8 [2025-03-04 16:17:46,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:17:46,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:17:46,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:17:46,963 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:17:46,963 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:17:46,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/gcd01-1.c [2025-03-04 16:17:48,084 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c57c383/0d75b33fbe3244e3ae0285985c24a1f1/FLAGb261e1ff2 [2025-03-04 16:17:48,324 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:17:48,332 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd01-1.c [2025-03-04 16:17:48,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c57c383/0d75b33fbe3244e3ae0285985c24a1f1/FLAGb261e1ff2 [2025-03-04 16:17:48,358 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1c57c383/0d75b33fbe3244e3ae0285985c24a1f1 [2025-03-04 16:17:48,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:17:48,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:17:48,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:17:48,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:17:48,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:17:48,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304fef18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48, skipping insertion in model container [2025-03-04 16:17:48,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:17:48,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:17:48,500 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:17:48,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:17:48,523 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:17:48,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48 WrapperNode [2025-03-04 16:17:48,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:17:48,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:17:48,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:17:48,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:17:48,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,546 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2025-03-04 16:17:48,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:17:48,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:17:48,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:17:48,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:17:48,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,553 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,563 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 16:17:48,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,569 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:17:48,571 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:17:48,571 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:17:48,572 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:17:48,576 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (1/1) ... [2025-03-04 16:17:48,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:48,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:48,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:48,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 16:17:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:17:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2025-03-04 16:17:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2025-03-04 16:17:48,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:17:48,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:17:48,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:17:48,660 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:17:48,661 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:17:48,716 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: havoc #t~ret5; [2025-03-04 16:17:48,716 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L25: havoc #t~ret4; [2025-03-04 16:17:48,748 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-03-04 16:17:48,748 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:17:48,757 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:17:48,757 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:17:48,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:17:48 BoogieIcfgContainer [2025-03-04 16:17:48,757 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:17:48,758 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:17:48,758 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:17:48,762 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:17:48,763 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:17:48,763 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:17:48" (1/3) ... [2025-03-04 16:17:48,764 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71a0acac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:17:48, skipping insertion in model container [2025-03-04 16:17:48,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:17:48,764 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:48" (2/3) ... [2025-03-04 16:17:48,765 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71a0acac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:17:48, skipping insertion in model container [2025-03-04 16:17:48,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:17:48,765 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:17:48" (3/3) ... [2025-03-04 16:17:48,766 INFO L363 chiAutomizerObserver]: Analyzing ICFG gcd01-1.c [2025-03-04 16:17:48,806 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:17:48,806 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:17:48,806 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:17:48,806 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:17:48,806 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:17:48,806 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:17:48,806 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:17:48,806 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:17:48,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 16:17:48,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-04 16:17:48,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:17:48,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:17:48,826 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-04 16:17:48,826 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-04 16:17:48,826 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:17:48,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 16:17:48,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-03-04 16:17:48,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:17:48,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:17:48,830 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-04 16:17:48,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-04 16:17:48,834 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647);" "call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);"< [2025-03-04 16:17:48,834 INFO L754 eck$LassoCheckResult]: Loop: "~y1 := #in~y1;~y2 := #in~y2;" "assume !(~y1 <= 0 || ~y2 <= 0);" "assume !(~y1 == ~y2);" "assume !(~y1 > ~y2);" "call #t~ret5 := gcd(~y1, ~y2 - ~y1);"< [2025-03-04 16:17:48,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:48,837 INFO L85 PathProgramCache]: Analyzing trace with hash 58180682, now seen corresponding path program 1 times [2025-03-04 16:17:48,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:48,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245650241] [2025-03-04 16:17:48,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:48,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:48,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:48,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:48,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:48,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:48,913 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:48,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:48,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:48,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:48,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:48,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:48,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:48,941 INFO L85 PathProgramCache]: Analyzing trace with hash 40048003, now seen corresponding path program 1 times [2025-03-04 16:17:48,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:48,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604610739] [2025-03-04 16:17:48,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:48,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:48,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:48,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:48,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:48,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:48,952 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:48,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:48,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:48,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:48,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:48,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:48,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:48,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2085120294, now seen corresponding path program 1 times [2025-03-04 16:17:48,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:48,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417134304] [2025-03-04 16:17:48,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:48,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:48,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 16:17:48,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 16:17:48,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:48,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:48,980 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:48,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 16:17:48,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 16:17:48,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:48,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:48,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:49,144 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:17:49,145 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:17:49,145 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:17:49,145 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:17:49,145 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 16:17:49,145 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,145 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:17:49,145 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:17:49,146 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration1_Loop [2025-03-04 16:17:49,146 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:17:49,146 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:17:49,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,182 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,243 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:17:49,244 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 16:17:49,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-04 16:17:49,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:49,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:49,265 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:49,265 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:49,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:49,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-04 16:17:49,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:49,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:49,291 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:49,291 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:49,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:49,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-04 16:17:49,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:49,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:49,312 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:49,313 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:49,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-03-04 16:17:49,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-04 16:17:49,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:49,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:49,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:49,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-04 16:17:49,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 16:17:49,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:49,463 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 16:17:49,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-04 16:17:49,469 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:17:49,469 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:17:49,469 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:17:49,469 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:17:49,469 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 16:17:49,469 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,469 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:17:49,469 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:17:49,470 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration1_Loop [2025-03-04 16:17:49,470 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:17:49,470 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:17:49,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,476 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,489 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:49,542 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:17:49,544 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 16:17:49,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-04 16:17:49,549 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 [2025-03-04 16:17:49,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:49,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:49,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:49,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:49,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:49,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:49,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:49,567 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:49,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-03-04 16:17:49,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,574 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-04 16:17:49,576 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 [2025-03-04 16:17:49,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:49,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:49,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:49,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:49,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:49,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:49,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:49,589 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:49,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-04 16:17:49,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,596 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-04 16:17:49,597 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 [2025-03-04 16:17:49,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:49,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:49,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:49,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:49,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:49,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:49,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:49,609 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:49,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-03-04 16:17:49,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,617 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-04 16:17:49,620 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 [2025-03-04 16:17:49,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:49,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:49,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:49,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:49,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:49,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:49,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:49,635 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 16:17:49,639 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 16:17:49,642 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 16:17:49,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:49,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:49,645 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:49,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-04 16:17:49,648 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 16:17:49,648 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 16:17:49,648 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 16:17:49,648 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y2) = 1*gcd_#in~y2 Supporting invariants [] [2025-03-04 16:17:49,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-03-04 16:17:49,656 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 16:17:49,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:49,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:49,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:49,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:49,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:49,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 16:17:49,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:49,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:49,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:49,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:49,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:49,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 16:17:49,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:17:49,783 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 [2025-03-04 16:17:49,785 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:49,910 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 64 states and 88 transitions. Complement of second has 20 states. [2025-03-04 16:17:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2025-03-04 16:17:49,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:49,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 23 transitions. [2025-03-04 16:17:49,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 5 letters. Loop has 5 letters. [2025-03-04 16:17:49,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:49,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 10 letters. Loop has 5 letters. [2025-03-04 16:17:49,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:49,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 5 letters. Loop has 10 letters. [2025-03-04 16:17:49,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:49,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 88 transitions. [2025-03-04 16:17:49,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 16:17:49,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 28 states and 32 transitions. [2025-03-04 16:17:49,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2025-03-04 16:17:49,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2025-03-04 16:17:49,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2025-03-04 16:17:49,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-04 16:17:49,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2025-03-04 16:17:49,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2025-03-04 16:17:49,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2025-03-04 16:17:49,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2025-03-04 16:17:49,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2025-03-04 16:17:49,963 INFO L432 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2025-03-04 16:17:49,963 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:17:49,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2025-03-04 16:17:49,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 16:17:49,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:17:49,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:17:49,967 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-04 16:17:49,967 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-04 16:17:49,967 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647);" "call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);"< "~y1 := #in~y1;~y2 := #in~y2;" [2025-03-04 16:17:49,967 INFO L754 eck$LassoCheckResult]: Loop: "assume !(~y1 <= 0 || ~y2 <= 0);" "assume !(~y1 == ~y2);" "assume ~y1 > ~y2;" "call #t~ret4 := gcd(~y1 - ~y2, ~y2);"< "~y1 := #in~y1;~y2 := #in~y2;" [2025-03-04 16:17:49,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:49,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1803601154, now seen corresponding path program 1 times [2025-03-04 16:17:49,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:49,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669832788] [2025-03-04 16:17:49,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:49,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:49,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 16:17:49,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 16:17:49,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:49,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:49,974 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:49,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 16:17:49,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 16:17:49,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:49,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:49,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:49,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:49,985 INFO L85 PathProgramCache]: Analyzing trace with hash 39062864, now seen corresponding path program 1 times [2025-03-04 16:17:49,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:49,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755277353] [2025-03-04 16:17:49,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:49,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:49,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:49,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:49,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:49,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:49,991 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:49,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:49,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:49,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:49,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:49,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:49,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:49,999 INFO L85 PathProgramCache]: Analyzing trace with hash -214220561, now seen corresponding path program 1 times [2025-03-04 16:17:49,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:49,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986101194] [2025-03-04 16:17:49,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:49,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:50,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 16:17:50,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-03-04 16:17:50,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 16:17:50,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:50,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:50,030 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:50,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 16:17:50,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 16:17:50,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:50,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:50,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:50,125 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:17:50,126 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:17:50,126 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:17:50,126 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:17:50,126 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 16:17:50,126 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,126 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:17:50,126 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:17:50,126 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration2_Loop [2025-03-04 16:17:50,126 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:17:50,126 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:17:50,127 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,182 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:17:50,183 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 16:17:50,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:50,185 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:50,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-04 16:17:50,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:50,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:50,202 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:50,202 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:50,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:50,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:50,211 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:50,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-04 16:17:50,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:50,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:50,224 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:50,224 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:50,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:50,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:50,231 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:50,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-03-04 16:17:50,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:50,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:50,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-03-04 16:17:50,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:50,260 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:50,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-03-04 16:17:50,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 16:17:50,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:50,496 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 16:17:50,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:50,504 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:17:50,504 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:17:50,504 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:17:50,504 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:17:50,504 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 16:17:50,504 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,504 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:17:50,505 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:17:50,505 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration2_Loop [2025-03-04 16:17:50,505 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:17:50,505 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:17:50,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,565 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:17:50,565 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 16:17:50,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:50,568 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:50,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-03-04 16:17:50,569 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 [2025-03-04 16:17:50,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:50,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:50,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:50,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:50,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:50,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:50,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:50,583 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:50,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-03-04 16:17:50,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:50,590 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:50,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-03-04 16:17:50,592 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 [2025-03-04 16:17:50,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:50,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:50,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:50,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:50,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:50,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:50,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:50,603 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:50,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-03-04 16:17:50,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:50,610 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:50,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-03-04 16:17:50,611 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 [2025-03-04 16:17:50,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:50,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:50,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:50,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:50,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:50,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:50,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:50,626 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 16:17:50,631 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 16:17:50,632 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 16:17:50,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:50,634 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:50,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-03-04 16:17:50,636 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 16:17:50,637 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 16:17:50,637 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 16:17:50,637 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2025-03-04 16:17:50,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:50,646 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 16:17:50,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:50,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 16:17:50,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 16:17:50,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:50,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:50,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 16:17:50,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:50,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:50,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:50,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:50,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:50,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 16:17:50,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:17:50,760 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 [2025-03-04 16:17:50,760 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:50,795 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 61 transitions. Complement of second has 15 states. [2025-03-04 16:17:50,798 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 [2025-03-04 16:17:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:50,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2025-03-04 16:17:50,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 5 letters. [2025-03-04 16:17:50,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:50,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2025-03-04 16:17:50,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:50,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 10 letters. [2025-03-04 16:17:50,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:50,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2025-03-04 16:17:50,800 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 16:17:50,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 33 states and 37 transitions. [2025-03-04 16:17:50,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2025-03-04 16:17:50,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-03-04 16:17:50,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2025-03-04 16:17:50,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-04 16:17:50,801 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 37 transitions. [2025-03-04 16:17:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2025-03-04 16:17:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2025-03-04 16:17:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:50,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2025-03-04 16:17:50,803 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-03-04 16:17:50,803 INFO L432 stractBuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-03-04 16:17:50,803 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:17:50,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2025-03-04 16:17:50,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-04 16:17:50,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:17:50,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:17:50,803 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:17:50,803 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-04 16:17:50,804 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;havoc main_#t~nondet6#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);havoc main_#t~nondet7#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;" "assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647);" "call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);"< "~y1 := #in~y1;~y2 := #in~y2;" "assume !(~y1 <= 0 || ~y2 <= 0);" "assume !(~y1 == ~y2);" "assume !(~y1 > ~y2);" "call #t~ret5 := gcd(~y1, ~y2 - ~y1);"< "~y1 := #in~y1;~y2 := #in~y2;" [2025-03-04 16:17:50,804 INFO L754 eck$LassoCheckResult]: Loop: "assume !(~y1 <= 0 || ~y2 <= 0);" "assume !(~y1 == ~y2);" "assume ~y1 > ~y2;" "call #t~ret4 := gcd(~y1 - ~y2, ~y2);"< "~y1 := #in~y1;~y2 := #in~y2;" [2025-03-04 16:17:50,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:50,804 INFO L85 PathProgramCache]: Analyzing trace with hash -214219662, now seen corresponding path program 2 times [2025-03-04 16:17:50,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:50,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317079145] [2025-03-04 16:17:50,804 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:17:50,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:50,809 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 11 statements into 2 equivalence classes. [2025-03-04 16:17:50,815 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 16:17:50,815 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 16:17:50,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:50,815 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:50,819 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 16:17:50,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 16:17:50,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:50,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:50,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:50,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash 39062864, now seen corresponding path program 2 times [2025-03-04 16:17:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:50,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299845351] [2025-03-04 16:17:50,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:17:50,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:50,832 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:50,834 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:50,834 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:17:50,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:50,834 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:50,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:50,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:50,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:50,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:50,838 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:50,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1504254081, now seen corresponding path program 1 times [2025-03-04 16:17:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635320882] [2025-03-04 16:17:50,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:50,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:50,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:17:50,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:17:50,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:50,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:50,849 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:50,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:17:50,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:17:50,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:50,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:50,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:50,957 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:17:50,957 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:17:50,957 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:17:50,957 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:17:50,957 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 16:17:50,957 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:50,957 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:17:50,957 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:17:50,957 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration3_Loop [2025-03-04 16:17:50,957 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:17:50,957 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:17:50,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:50,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:51,014 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:17:51,014 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 16:17:51,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:51,016 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:51,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-03-04 16:17:51,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:51,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:51,028 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:51,028 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:51,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:51,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:51,035 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:51,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-03-04 16:17:51,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:51,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:51,047 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:51,047 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:51,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-03-04 16:17:51,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:51,055 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:51,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-03-04 16:17:51,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:51,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:51,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-03-04 16:17:51,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:51,083 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:51,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-03-04 16:17:51,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 16:17:51,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:51,306 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-04 16:17:51,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-03-04 16:17:51,314 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:17:51,314 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:17:51,314 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:17:51,314 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:17:51,314 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 16:17:51,314 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,317 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:17:51,317 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:17:51,317 INFO L132 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration3_Loop [2025-03-04 16:17:51,317 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:17:51,317 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:17:51,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:51,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:51,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:51,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:51,373 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:17:51,373 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 16:17:51,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:51,377 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:51,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-03-04 16:17:51,378 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 [2025-03-04 16:17:51,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:51,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:51,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:51,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:51,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:51,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:51,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:51,390 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:51,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-03-04 16:17:51,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:51,398 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:51,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-03-04 16:17:51,399 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 [2025-03-04 16:17:51,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:51,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:51,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:51,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:51,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:51,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:51,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:51,411 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:51,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-03-04 16:17:51,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:51,418 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:51,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-03-04 16:17:51,419 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 [2025-03-04 16:17:51,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:51,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:51,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:51,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:51,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:51,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:51,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:51,433 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 16:17:51,435 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-04 16:17:51,436 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-04 16:17:51,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:51,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:51,438 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:51,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-03-04 16:17:51,440 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 16:17:51,440 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-04 16:17:51,440 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 16:17:51,440 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2025-03-04 16:17:51,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-03-04 16:17:51,446 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-04 16:17:51,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:51,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 16:17:51,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 16:17:51,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:51,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:51,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 16:17:51,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:51,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:51,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:51,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:51,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:51,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 16:17:51,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:51,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:17:51,538 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 [2025-03-04 16:17:51,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:51,571 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 51 transitions. Complement of second has 15 states. [2025-03-04 16:17:51,573 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 [2025-03-04 16:17:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2025-03-04 16:17:51,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2025-03-04 16:17:51,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:51,574 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-04 16:17:51,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-03-04 16:17:51,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:51,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:51,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 16:17:51,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 16:17:51,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:51,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:51,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 16:17:51,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:51,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:51,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:51,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:51,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:51,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 16:17:51,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:17:51,684 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2025-03-04 16:17:51,685 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:51,714 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 51 transitions. Complement of second has 15 states. [2025-03-04 16:17:51,714 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 [2025-03-04 16:17:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2025-03-04 16:17:51,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2025-03-04 16:17:51,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:51,715 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-04 16:17:51,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:51,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 16:17:51,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 16:17:51,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:51,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:51,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 16:17:51,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:51,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-04 16:17:51,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-04 16:17:51,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:51,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:51,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 16:17:51,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:17:51,819 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2025-03-04 16:17:51,820 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:51,853 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 86 transitions. Complement of second has 17 states. [2025-03-04 16:17:51,855 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 [2025-03-04 16:17:51,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:51,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2025-03-04 16:17:51,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 5 letters. [2025-03-04 16:17:51,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:51,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 16 letters. Loop has 5 letters. [2025-03-04 16:17:51,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:51,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 10 letters. [2025-03-04 16:17:51,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:51,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 86 transitions. [2025-03-04 16:17:51,857 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:17:51,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2025-03-04 16:17:51,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 16:17:51,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 16:17:51,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 16:17:51,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:17:51,858 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:17:51,858 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:17:51,858 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:17:51,858 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 16:17:51,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 16:17:51,858 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:17:51,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 16:17:51,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:17:51 BoogieIcfgContainer [2025-03-04 16:17:51,863 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:17:51,864 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:17:51,864 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:17:51,864 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:17:51,864 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:17:48" (3/4) ... [2025-03-04 16:17:51,866 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 16:17:51,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:17:51,867 INFO L158 Benchmark]: Toolchain (without parser) took 3504.95ms. Allocated memory is still 167.8MB. Free memory was 135.6MB in the beginning and 112.4MB in the end (delta: 23.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2025-03-04 16:17:51,868 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:17:51,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.87ms. Allocated memory is still 167.8MB. Free memory was 135.6MB in the beginning and 125.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:17:51,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.84ms. Allocated memory is still 167.8MB. Free memory was 125.1MB in the beginning and 123.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:17:51,868 INFO L158 Benchmark]: Boogie Preprocessor took 24.20ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 123.0MB in the end (delta: 853.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:17:51,869 INFO L158 Benchmark]: IcfgBuilder took 185.67ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 112.3MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:17:51,870 INFO L158 Benchmark]: BuchiAutomizer took 3105.48ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 113.3MB in the end (delta: -976.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:17:51,870 INFO L158 Benchmark]: Witness Printer took 2.30ms. Allocated memory is still 167.8MB. Free memory was 113.3MB in the beginning and 112.4MB in the end (delta: 915.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:17:51,871 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.87ms. Allocated memory is still 167.8MB. Free memory was 135.6MB in the beginning and 125.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.84ms. Allocated memory is still 167.8MB. Free memory was 125.1MB in the beginning and 123.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.20ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 123.0MB in the end (delta: 853.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 185.67ms. Allocated memory is still 167.8MB. Free memory was 123.0MB in the beginning and 112.3MB in the end (delta: 10.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3105.48ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 113.3MB in the end (delta: -976.3kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.30ms. Allocated memory is still 167.8MB. Free memory was 113.3MB in the beginning and 112.4MB in the end (delta: 915.3kB). Peak memory consumption was 8.4MB. 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(y2) and consists of 6 locations. One deterministic module has affine ranking function y1 and consists of 5 locations. One nondeterministic module has affine ranking function y1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 55 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp91 dnf100 smp100 tf106 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 16:17:51,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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