./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/GCD3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8fc3dc66 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/termination-restricted-15/GCD3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:52:28,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:52:28,365 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-17 19:52:28,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:52:28,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:52:28,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-17 19:52:28,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:52:28,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:52:28,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:52:28,402 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:52:28,402 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:52:28,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:52:28,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:52:28,403 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:52:28,403 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-17 19:52:28,403 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-17 19:52:28,403 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-17 19:52:28,403 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-17 19:52:28,403 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-17 19:52:28,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-17 19:52:28,404 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:52:28,405 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:52:28,405 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:52:28,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:52:28,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:52:28,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:52:28,405 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-17 19:52:28,405 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2025-03-17 19:52:28,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:52:28,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:52:28,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:52:28,684 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:52:28,685 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:52:28,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/GCD3.c [2025-03-17 19:52:29,875 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137a7f890/f7c77e6e33334c6daf7c0916a9a76964/FLAGe2b607b0d [2025-03-17 19:52:30,082 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:52:30,085 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c [2025-03-17 19:52:30,102 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137a7f890/f7c77e6e33334c6daf7c0916a9a76964/FLAGe2b607b0d [2025-03-17 19:52:30,455 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137a7f890/f7c77e6e33334c6daf7c0916a9a76964 [2025-03-17 19:52:30,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:52:30,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:52:30,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:52:30,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:52:30,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:52:30,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47818d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30, skipping insertion in model container [2025-03-17 19:52:30,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:52:30,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:52:30,577 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:52:30,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:52:30,595 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:52:30,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30 WrapperNode [2025-03-17 19:52:30,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:52:30,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:52:30,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:52:30,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:52:30,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,615 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2025-03-17 19:52:30,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:52:30,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:52:30,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:52:30,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:52:30,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,622 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,625 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 19:52:30,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,626 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:52:30,628 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:52:30,628 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:52:30,628 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:52:30,629 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (1/1) ... [2025-03-17 19:52:30,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:30,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:30,652 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) [2025-03-17 19:52:30,654 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 [2025-03-17 19:52:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:52:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:52:30,711 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:52:30,712 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:52:30,782 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-17 19:52:30,782 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:52:30,788 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:52:30,790 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:52:30,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:30 BoogieIcfgContainer [2025-03-17 19:52:30,790 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:52:30,791 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-17 19:52:30,791 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-17 19:52:30,794 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-17 19:52:30,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:30,795 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 07:52:30" (1/3) ... [2025-03-17 19:52:30,796 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4beb991d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:52:30, skipping insertion in model container [2025-03-17 19:52:30,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:30,796 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:52:30" (2/3) ... [2025-03-17 19:52:30,797 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4beb991d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 07:52:30, skipping insertion in model container [2025-03-17 19:52:30,797 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-17 19:52:30,797 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:30" (3/3) ... [2025-03-17 19:52:30,798 INFO L363 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2025-03-17 19:52:30,837 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-17 19:52:30,837 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-17 19:52:30,837 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-17 19:52:30,837 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-17 19:52:30,838 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-17 19:52:30,838 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-17 19:52:30,838 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-17 19:52:30,838 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-17 19:52:30,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:30,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-17 19:52:30,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:30,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:30,855 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 19:52:30,855 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-17 19:52:30,856 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-17 19:52:30,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:30,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-17 19:52:30,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:30,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:30,857 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 19:52:30,857 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-03-17 19:52:30,862 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-03-17 19:52:30,862 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume 0 == main_~y~0#1;main_~y~0#1 := main_~y~0#1;" "assume main_~xtmp~0#1 > 0;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);main_~y~0#1 := main_~xtmp~0#1;" "main_~x~0#1 := main_~tmp~0#1;" [2025-03-17 19:52:30,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2025-03-17 19:52:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:30,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479436010] [2025-03-17 19:52:30,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:30,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:30,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:30,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:30,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:30,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:30,920 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:30,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:30,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:30,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:30,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:30,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:30,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash 39955560, now seen corresponding path program 1 times [2025-03-17 19:52:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:30,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165610427] [2025-03-17 19:52:30,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:30,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:30,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:52:30,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:52:30,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:30,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:30,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:52:30,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165610427] [2025-03-17 19:52:30,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165610427] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:52:30,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:52:30,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:52:30,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592355320] [2025-03-17 19:52:30,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:52:30,993 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-17 19:52:30,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:52:31,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:52:31,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:52:31,017 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 19:52:31,042 INFO L93 Difference]: Finished difference Result 10 states and 13 transitions. [2025-03-17 19:52:31,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2025-03-17 19:52:31,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-17 19:52:31,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 11 transitions. [2025-03-17 19:52:31,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2025-03-17 19:52:31,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2025-03-17 19:52:31,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2025-03-17 19:52:31,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:52:31,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-03-17 19:52:31,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2025-03-17 19:52:31,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-03-17 19:52:31,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:31,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2025-03-17 19:52:31,065 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-03-17 19:52:31,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:52:31,068 INFO L432 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-03-17 19:52:31,068 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-17 19:52:31,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2025-03-17 19:52:31,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-17 19:52:31,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:31,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:31,069 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-03-17 19:52:31,069 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2025-03-17 19:52:31,069 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-03-17 19:52:31,069 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);main_~y~0#1 := main_~xtmp~0#1;" "main_~x~0#1 := main_~tmp~0#1;" [2025-03-17 19:52:31,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:31,070 INFO L85 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 2 times [2025-03-17 19:52:31,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:31,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011238872] [2025-03-17 19:52:31,071 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:52:31,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:31,075 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:31,075 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:31,075 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:52:31,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,075 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:31,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:31,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:31,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:31,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:31,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1241515963, now seen corresponding path program 1 times [2025-03-17 19:52:31,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:31,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500267881] [2025-03-17 19:52:31,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:31,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:31,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:52:31,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:52:31,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,084 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:31,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:52:31,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:52:31,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:31,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:31,088 INFO L85 PathProgramCache]: Analyzing trace with hash 749468582, now seen corresponding path program 1 times [2025-03-17 19:52:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:31,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622808396] [2025-03-17 19:52:31,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:31,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:31,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:31,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:31,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,097 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:31,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:31,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:31,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:31,180 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:31,181 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:31,181 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:31,181 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:31,182 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:31,182 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,182 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:31,182 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:31,182 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration2_Loop [2025-03-17 19:52:31,182 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:31,182 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:31,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,201 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,279 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:31,280 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:31,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,283 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) [2025-03-17 19:52:31,285 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 [2025-03-17 19:52:31,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:31,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:31,308 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:31,308 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:31,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-17 19:52:31,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,317 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) [2025-03-17 19:52:31,318 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 [2025-03-17 19:52:31,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:31,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:31,337 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:31,337 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:31,343 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 [2025-03-17 19:52:31,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,348 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) [2025-03-17 19:52:31,349 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 [2025-03-17 19:52:31,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:31,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:31,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:31,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,376 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) [2025-03-17 19:52:31,377 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 [2025-03-17 19:52:31,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:31,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:31,415 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:31,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-03-17 19:52:31,420 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:31,420 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:31,420 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:31,420 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:31,420 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:31,420 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,420 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:31,420 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:31,420 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration2_Loop [2025-03-17 19:52:31,420 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:31,420 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:31,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,430 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,486 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:31,489 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:31,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,493 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) [2025-03-17 19:52:31,494 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 [2025-03-17 19:52:31,494 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 [2025-03-17 19:52:31,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:31,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:31,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:31,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:31,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:31,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:31,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:31,510 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:31,516 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 [2025-03-17 19:52:31,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,518 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) [2025-03-17 19:52:31,519 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 [2025-03-17 19:52:31,520 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 [2025-03-17 19:52:31,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:31,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:31,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:31,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:31,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:31,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:31,537 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:31,543 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 [2025-03-17 19:52:31,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,545 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) [2025-03-17 19:52:31,545 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 [2025-03-17 19:52:31,546 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 [2025-03-17 19:52:31,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:31,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:31,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:31,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:31,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:31,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:31,563 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:31,568 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 [2025-03-17 19:52:31,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,570 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) [2025-03-17 19:52:31,571 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 [2025-03-17 19:52:31,572 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 [2025-03-17 19:52:31,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:31,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:31,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:31,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:31,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:31,583 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:31,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:31,584 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:31,590 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 [2025-03-17 19:52:31,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,592 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) [2025-03-17 19:52:31,594 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 [2025-03-17 19:52:31,595 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 [2025-03-17 19:52:31,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:31,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:31,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:31,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:31,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:31,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:31,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:31,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:31,614 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-03-17 19:52:31,615 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-03-17 19:52:31,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,618 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) [2025-03-17 19:52:31,627 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 [2025-03-17 19:52:31,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:31,630 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:52:31,630 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:31,630 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2025-03-17 19:52:31,636 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 [2025-03-17 19:52:31,638 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:52:31,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:31,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:31,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:31,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:31,664 WARN L254 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:52:31,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:31,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:52:31,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:52:31,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:31,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:52:31,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:31,723 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 [2025-03-17 19:52:31,724 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:31,765 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 35 transitions. Complement of second has 7 states. [2025-03-17 19:52:31,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:31,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2025-03-17 19:52:31,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2025-03-17 19:52:31,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:31,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 7 letters. Loop has 6 letters. [2025-03-17 19:52:31,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:31,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 1 letters. Loop has 12 letters. [2025-03-17 19:52:31,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:31,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 35 transitions. [2025-03-17 19:52:31,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-17 19:52:31,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 24 transitions. [2025-03-17 19:52:31,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2025-03-17 19:52:31,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-03-17 19:52:31,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2025-03-17 19:52:31,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:52:31,775 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 24 transitions. [2025-03-17 19:52:31,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2025-03-17 19:52:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2025-03-17 19:52:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:31,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2025-03-17 19:52:31,777 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2025-03-17 19:52:31,777 INFO L432 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2025-03-17 19:52:31,777 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-17 19:52:31,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2025-03-17 19:52:31,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-17 19:52:31,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:31,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:31,779 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-03-17 19:52:31,779 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:52:31,779 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" [2025-03-17 19:52:31,779 INFO L754 eck$LassoCheckResult]: Loop: "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume main_~xtmp~0#1 >= main_~y~0#1;main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);main_~y~0#1 := main_~xtmp~0#1;" "main_~x~0#1 := main_~tmp~0#1;" "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" [2025-03-17 19:52:31,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:31,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1376, now seen corresponding path program 1 times [2025-03-17 19:52:31,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:31,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866719744] [2025-03-17 19:52:31,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:31,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:31,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:31,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:31,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,786 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:31,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:31,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:31,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:31,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:31,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1087627088, now seen corresponding path program 1 times [2025-03-17 19:52:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:31,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983021491] [2025-03-17 19:52:31,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:31,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:31,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:31,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:31,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,796 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:31,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:31,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:31,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:31,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1315167631, now seen corresponding path program 1 times [2025-03-17 19:52:31,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:31,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847240585] [2025-03-17 19:52:31,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:31,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:31,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:52:31,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:52:31,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,814 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:31,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:52:31,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:52:31,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:31,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:31,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:31,897 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:31,897 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:31,897 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:31,898 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:31,898 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:31,898 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,898 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:31,898 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:31,898 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2025-03-17 19:52:31,898 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:31,898 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:31,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:31,967 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:31,967 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:31,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,969 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) [2025-03-17 19:52:31,971 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 [2025-03-17 19:52:31,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:31,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:31,990 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:31,990 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:31,996 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 [2025-03-17 19:52:31,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:31,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:31,998 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) [2025-03-17 19:52:32,000 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 [2025-03-17 19:52:32,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:32,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:32,018 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:32,019 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:32,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-03-17 19:52:32,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,026 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) [2025-03-17 19:52:32,027 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 [2025-03-17 19:52:32,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:32,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:32,053 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 [2025-03-17 19:52:32,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,055 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) [2025-03-17 19:52:32,056 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 [2025-03-17 19:52:32,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:32,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:32,247 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:32,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-03-17 19:52:32,254 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:32,254 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:32,254 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:32,254 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:32,254 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:32,254 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,254 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:32,254 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:32,254 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2025-03-17 19:52:32,254 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:32,254 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:32,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,354 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:32,354 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:32,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,357 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) [2025-03-17 19:52:32,358 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 [2025-03-17 19:52:32,359 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 [2025-03-17 19:52:32,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:32,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:32,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:32,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:32,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:32,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:32,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:32,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:32,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,381 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) [2025-03-17 19:52:32,383 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 [2025-03-17 19:52:32,389 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 [2025-03-17 19:52:32,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:32,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:32,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:32,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:32,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:32,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:32,405 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:32,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:32,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,413 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) [2025-03-17 19:52:32,415 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 [2025-03-17 19:52:32,416 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 [2025-03-17 19:52:32,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:32,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:32,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:32,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:32,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:32,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:32,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:32,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:32,436 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-03-17 19:52:32,436 INFO L444 ModelExtractionUtils]: 0 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2025-03-17 19:52:32,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,438 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) [2025-03-17 19:52:32,439 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 [2025-03-17 19:52:32,440 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:32,440 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:52:32,440 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:32,440 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~tmp~0#1, ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~tmp~0#1 + 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2025-03-17 19:52:32,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-03-17 19:52:32,446 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:52:32,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:32,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 19:52:32,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 19:52:32,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:32,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:32,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:52:32,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:32,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:32,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:32,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:32,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:32,475 WARN L254 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 19:52:32,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:32,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:32,508 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 [2025-03-17 19:52:32,508 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:32,547 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 53 transitions. Complement of second has 11 states. [2025-03-17 19:52:32,547 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 [2025-03-17 19:52:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2025-03-17 19:52:32,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. Stem has 2 letters. Loop has 7 letters. [2025-03-17 19:52:32,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:32,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. Stem has 9 letters. Loop has 7 letters. [2025-03-17 19:52:32,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:32,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 9 transitions. Stem has 2 letters. Loop has 14 letters. [2025-03-17 19:52:32,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:32,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 53 transitions. [2025-03-17 19:52:32,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-17 19:52:32,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 40 states and 49 transitions. [2025-03-17 19:52:32,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2025-03-17 19:52:32,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2025-03-17 19:52:32,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 49 transitions. [2025-03-17 19:52:32,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:52:32,551 INFO L218 hiAutomatonCegarLoop]: Abstraction has 40 states and 49 transitions. [2025-03-17 19:52:32,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 49 transitions. [2025-03-17 19:52:32,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2025-03-17 19:52:32,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 38 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:32,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2025-03-17 19:52:32,555 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2025-03-17 19:52:32,555 INFO L432 stractBuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2025-03-17 19:52:32,556 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-17 19:52:32,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 48 transitions. [2025-03-17 19:52:32,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2025-03-17 19:52:32,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:32,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:32,559 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-17 19:52:32,559 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:52:32,559 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume main_~xtmp~0#1 >= main_~y~0#1;main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" [2025-03-17 19:52:32,559 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~xtmp~0#1 >= main_~y~0#1;main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);main_~y~0#1 := main_~xtmp~0#1;" "main_~x~0#1 := main_~tmp~0#1;" "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" [2025-03-17 19:52:32,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1271102396, now seen corresponding path program 1 times [2025-03-17 19:52:32,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:32,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967200282] [2025-03-17 19:52:32,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:32,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:32,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:52:32,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:52:32,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:32,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:32,568 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:32,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:52:32,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:52:32,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:32,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:32,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:32,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash 168904284, now seen corresponding path program 2 times [2025-03-17 19:52:32,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:32,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664401874] [2025-03-17 19:52:32,575 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:52:32,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:32,578 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 2 equivalence classes. [2025-03-17 19:52:32,580 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:32,580 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:52:32,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:32,580 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:32,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:32,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:32,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:32,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:32,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:32,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1627835839, now seen corresponding path program 2 times [2025-03-17 19:52:32,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:32,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122608178] [2025-03-17 19:52:32,586 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:52:32,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:32,589 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-03-17 19:52:32,594 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:52:32,597 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:52:32,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:32,598 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:32,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:52:32,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:52:32,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:32,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:32,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:32,662 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:32,663 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:32,663 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:32,663 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:32,663 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:32,663 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,663 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:32,663 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:32,663 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Loop [2025-03-17 19:52:32,663 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:32,663 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:32,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,680 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,723 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:32,723 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:32,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,725 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) [2025-03-17 19:52:32,727 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 [2025-03-17 19:52:32,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:32,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:32,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-03-17 19:52:32,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,747 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) [2025-03-17 19:52:32,748 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 [2025-03-17 19:52:32,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:32,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:32,858 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:32,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:32,863 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:32,863 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:32,863 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:32,863 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:32,863 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:32,863 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,863 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:32,863 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:32,863 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Loop [2025-03-17 19:52:32,863 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:32,863 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:32,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:32,933 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:32,933 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:32,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,935 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) [2025-03-17 19:52:32,936 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 [2025-03-17 19:52:32,937 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 [2025-03-17 19:52:32,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:32,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:32,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:32,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:32,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:32,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:32,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:32,950 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:32,952 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-03-17 19:52:32,952 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-03-17 19:52:32,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:32,954 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) [2025-03-17 19:52:32,956 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 [2025-03-17 19:52:32,957 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:32,957 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-03-17 19:52:32,957 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:32,957 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2025-03-17 19:52:32,963 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 [2025-03-17 19:52:32,963 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-03-17 19:52:32,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:32,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:52:32,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:52:32,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:32,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:32,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:52:32,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:32,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:32,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:32,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:32,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:32,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:52:32,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:33,022 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 [2025-03-17 19:52:33,034 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 [2025-03-17 19:52:33,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:52:33,058 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 [2025-03-17 19:52:33,058 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:33,080 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 135 transitions. Complement of second has 6 states. [2025-03-17 19:52:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:33,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2025-03-17 19:52:33,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 7 letters. [2025-03-17 19:52:33,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:33,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 13 letters. Loop has 7 letters. [2025-03-17 19:52:33,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:33,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 14 letters. [2025-03-17 19:52:33,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:33,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 135 transitions. [2025-03-17 19:52:33,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:52:33,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 78 states and 97 transitions. [2025-03-17 19:52:33,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2025-03-17 19:52:33,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2025-03-17 19:52:33,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 97 transitions. [2025-03-17 19:52:33,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:52:33,089 INFO L218 hiAutomatonCegarLoop]: Abstraction has 78 states and 97 transitions. [2025-03-17 19:52:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 97 transitions. [2025-03-17 19:52:33,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 63. [2025-03-17 19:52:33,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 62 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2025-03-17 19:52:33,093 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 81 transitions. [2025-03-17 19:52:33,093 INFO L432 stractBuchiCegarLoop]: Abstraction has 63 states and 81 transitions. [2025-03-17 19:52:33,093 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-17 19:52:33,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 81 transitions. [2025-03-17 19:52:33,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:52:33,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:33,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:33,095 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2025-03-17 19:52:33,095 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-17 19:52:33,095 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume main_~xtmp~0#1 >= main_~y~0#1;main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" "assume main_~xtmp~0#1 >= main_~y~0#1;main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" [2025-03-17 19:52:33,095 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~xtmp~0#1 >= main_~y~0#1;main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" [2025-03-17 19:52:33,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:33,095 INFO L85 PathProgramCache]: Analyzing trace with hash 749468615, now seen corresponding path program 2 times [2025-03-17 19:52:33,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:33,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872206248] [2025-03-17 19:52:33,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:52:33,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:33,098 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 2 equivalence classes. [2025-03-17 19:52:33,100 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:33,100 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:52:33,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,101 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:33,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:33,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:33,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:33,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:33,104 INFO L85 PathProgramCache]: Analyzing trace with hash 34, now seen corresponding path program 1 times [2025-03-17 19:52:33,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:33,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528559076] [2025-03-17 19:52:33,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:52:33,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:33,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:33,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:33,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,106 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:33,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:33,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:33,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:33,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:33,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1758690588, now seen corresponding path program 3 times [2025-03-17 19:52:33,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:33,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451925112] [2025-03-17 19:52:33,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:52:33,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:33,111 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 2 equivalence classes. [2025-03-17 19:52:33,118 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:52:33,118 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 19:52:33,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,118 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:33,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:52:33,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:52:33,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:33,167 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:33,168 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:33,168 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:33,168 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:33,168 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:33,168 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,168 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:33,168 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:33,168 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Lasso [2025-03-17 19:52:33,168 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:33,168 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:33,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,179 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,222 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:33,222 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:33,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,226 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) [2025-03-17 19:52:33,227 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 [2025-03-17 19:52:33,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:33,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:33,240 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:33,240 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:33,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:33,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,248 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) [2025-03-17 19:52:33,249 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 [2025-03-17 19:52:33,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:33,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:33,262 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:33,262 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:33,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:33,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,269 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) [2025-03-17 19:52:33,271 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 [2025-03-17 19:52:33,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:33,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:33,289 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:33,290 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:33,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:33,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,297 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) [2025-03-17 19:52:33,297 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 [2025-03-17 19:52:33,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:33,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:33,308 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:33,309 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:33,314 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 [2025-03-17 19:52:33,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,316 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:33,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-03-17 19:52:33,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:33,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:33,329 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:33,330 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:33,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-03-17 19:52:33,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,336 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:33,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-03-17 19:52:33,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:33,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:33,359 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:33,359 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:33,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-03-17 19:52:33,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,367 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:33,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-03-17 19:52:33,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:33,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:33,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:33,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,430 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:33,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-03-17 19:52:33,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:33,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:33,553 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:33,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-03-17 19:52:33,559 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:33,559 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:33,559 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:33,559 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:33,559 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:33,559 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,559 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:33,559 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:33,559 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Lasso [2025-03-17 19:52:33,559 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:33,559 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:33,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,570 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,617 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:33,618 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:33,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,619 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:33,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-03-17 19:52:33,624 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 [2025-03-17 19:52:33,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:33,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:33,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:33,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:33,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:33,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:33,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:33,635 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:33,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:33,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,643 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:33,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-03-17 19:52:33,644 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 [2025-03-17 19:52:33,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:33,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:33,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:33,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:33,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:33,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:33,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:33,655 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:33,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-03-17 19:52:33,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,662 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-17 19:52:33,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-03-17 19:52:33,664 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 [2025-03-17 19:52:33,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:33,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:33,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:33,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:33,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:33,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:33,676 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:33,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-03-17 19:52:33,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,683 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2025-03-17 19:52:33,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-03-17 19:52:33,685 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 [2025-03-17 19:52:33,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:33,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:33,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:33,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:33,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:33,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:33,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:33,696 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:33,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2025-03-17 19:52:33,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,703 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2025-03-17 19:52:33,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-03-17 19:52:33,704 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 [2025-03-17 19:52:33,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:33,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:33,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:33,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:33,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:33,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:33,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:33,715 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:33,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-03-17 19:52:33,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,722 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2025-03-17 19:52:33,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-03-17 19:52:33,725 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 [2025-03-17 19:52:33,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:33,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:33,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:33,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:33,736 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:33,736 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:33,741 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:33,747 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-03-17 19:52:33,747 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2025-03-17 19:52:33,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:33,749 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2025-03-17 19:52:33,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2025-03-17 19:52:33,750 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:33,762 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-03-17 19:52:33,763 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:33,763 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2025-03-17 19:52:33,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2025-03-17 19:52:33,771 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-03-17 19:52:33,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:33,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:52:33,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:52:33,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:33,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 19:52:33,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:33,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:33,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:33,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:33,838 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:52:33,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:33,839 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2025-03-17 19:52:33,839 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 81 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:33,860 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 81 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 96 transitions. Complement of second has 4 states. [2025-03-17 19:52:33,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:33,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2025-03-17 19:52:33,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2025-03-17 19:52:33,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:33,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2025-03-17 19:52:33,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:33,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2025-03-17 19:52:33,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:33,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 96 transitions. [2025-03-17 19:52:33,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:52:33,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 75 states and 93 transitions. [2025-03-17 19:52:33,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2025-03-17 19:52:33,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2025-03-17 19:52:33,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 93 transitions. [2025-03-17 19:52:33,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-03-17 19:52:33,866 INFO L218 hiAutomatonCegarLoop]: Abstraction has 75 states and 93 transitions. [2025-03-17 19:52:33,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 93 transitions. [2025-03-17 19:52:33,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2025-03-17 19:52:33,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.253968253968254) internal successors, (79), 62 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:33,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2025-03-17 19:52:33,869 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 79 transitions. [2025-03-17 19:52:33,869 INFO L432 stractBuchiCegarLoop]: Abstraction has 63 states and 79 transitions. [2025-03-17 19:52:33,869 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-03-17 19:52:33,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 79 transitions. [2025-03-17 19:52:33,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-03-17 19:52:33,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-17 19:52:33,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-17 19:52:33,870 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 19:52:33,870 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-03-17 19:52:33,871 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume main_~xtmp~0#1 >= main_~y~0#1;main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);main_~y~0#1 := main_~xtmp~0#1;" "main_~x~0#1 := main_~tmp~0#1;" "assume main_~y~0#1 > 0 && main_~x~0#1 > 0;main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" [2025-03-17 19:52:33,871 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~xtmp~0#1 >= main_~y~0#1;main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" [2025-03-17 19:52:33,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:33,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1467210122, now seen corresponding path program 3 times [2025-03-17 19:52:33,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:33,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948985199] [2025-03-17 19:52:33,871 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:52:33,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:33,874 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 3 equivalence classes. [2025-03-17 19:52:33,876 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:52:33,877 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-17 19:52:33,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,877 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:33,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:52:33,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:52:33,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:33,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:33,884 INFO L85 PathProgramCache]: Analyzing trace with hash 34, now seen corresponding path program 2 times [2025-03-17 19:52:33,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:33,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218375425] [2025-03-17 19:52:33,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:52:33,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:33,885 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:33,886 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:33,886 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:52:33,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,886 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:33,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:33,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:33,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:33,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:33,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1761126477, now seen corresponding path program 4 times [2025-03-17 19:52:33,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:52:33,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900472868] [2025-03-17 19:52:33,888 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 19:52:33,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:52:33,890 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 13 statements into 2 equivalence classes. [2025-03-17 19:52:33,892 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:52:33,893 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 19:52:33,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,893 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:52:33,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:52:33,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:52:33,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:33,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:52:33,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:52:33,953 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:33,953 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:33,953 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:33,953 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:33,953 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-17 19:52:33,953 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:33,953 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:33,953 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:33,953 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Lasso [2025-03-17 19:52:33,953 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:33,953 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:33,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,971 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:33,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:34,015 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:34,015 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-17 19:52:34,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,018 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2025-03-17 19:52:34,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2025-03-17 19:52:34,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:34,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:34,032 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-17 19:52:34,032 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-17 19:52:34,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2025-03-17 19:52:34,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,041 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2025-03-17 19:52:34,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2025-03-17 19:52:34,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-17 19:52:34,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:34,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2025-03-17 19:52:34,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,071 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2025-03-17 19:52:34,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2025-03-17 19:52:34,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-17 19:52:34,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-17 19:52:34,155 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-03-17 19:52:34,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2025-03-17 19:52:34,159 INFO L204 LassoAnalysis]: Preferences: [2025-03-17 19:52:34,159 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-17 19:52:34,159 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-17 19:52:34,159 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-17 19:52:34,159 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-17 19:52:34,159 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,159 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-17 19:52:34,159 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-17 19:52:34,159 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Lasso [2025-03-17 19:52:34,159 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-17 19:52:34,159 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-17 19:52:34,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:34,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:34,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:34,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:34,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:34,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:34,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-17 19:52:34,212 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-17 19:52:34,213 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-17 19:52:34,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,216 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2025-03-17 19:52:34,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2025-03-17 19:52:34,217 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 [2025-03-17 19:52:34,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:34,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:34,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:34,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:34,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:34,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:34,231 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:34,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2025-03-17 19:52:34,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,238 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2025-03-17 19:52:34,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2025-03-17 19:52:34,239 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 [2025-03-17 19:52:34,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:34,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:34,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:34,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:34,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:34,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:34,255 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:34,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2025-03-17 19:52:34,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,262 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2025-03-17 19:52:34,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2025-03-17 19:52:34,264 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 [2025-03-17 19:52:34,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:34,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:34,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:34,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:34,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:34,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:34,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:34,276 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:34,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2025-03-17 19:52:34,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,283 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2025-03-17 19:52:34,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2025-03-17 19:52:34,286 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 [2025-03-17 19:52:34,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:34,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-17 19:52:34,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:34,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:34,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:34,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-17 19:52:34,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-17 19:52:34,297 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-17 19:52:34,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2025-03-17 19:52:34,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,335 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2025-03-17 19:52:34,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2025-03-17 19:52:34,338 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 [2025-03-17 19:52:34,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-17 19:52:34,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-17 19:52:34,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-17 19:52:34,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-17 19:52:34,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-03-17 19:52:34,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-03-17 19:52:34,353 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-17 19:52:34,360 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2025-03-17 19:52:34,360 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2025-03-17 19:52:34,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-17 19:52:34,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:52:34,362 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2025-03-17 19:52:34,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2025-03-17 19:52:34,363 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-17 19:52:34,373 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-03-17 19:52:34,373 INFO L474 LassoAnalysis]: Proved termination. [2025-03-17 19:52:34,373 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2025-03-17 19:52:34,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2025-03-17 19:52:34,385 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-03-17 19:52:34,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:34,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:52:34,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:52:34,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:34,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:34,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 19:52:34,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:34,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:34,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:34,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:34,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:34,438 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:52:34,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:34,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:34,439 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2025-03-17 19:52:34,439 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 79 transitions. cyclomatic complexity: 22 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:34,470 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 79 transitions. cyclomatic complexity: 22. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 93 transitions. Complement of second has 4 states. [2025-03-17 19:52:34,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2025-03-17 19:52:34,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 12 letters. Loop has 1 letters. [2025-03-17 19:52:34,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:34,471 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 19:52:34,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2025-03-17 19:52:34,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2025-03-17 19:52:34,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:34,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:52:34,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:52:34,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:34,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:34,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 19:52:34,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:34,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:34,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:34,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:34,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:34,534 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:52:34,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:34,535 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2025-03-17 19:52:34,535 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 79 transitions. cyclomatic complexity: 22 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:34,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 79 transitions. cyclomatic complexity: 22. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 93 transitions. Complement of second has 4 states. [2025-03-17 19:52:34,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2025-03-17 19:52:34,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 12 letters. Loop has 1 letters. [2025-03-17 19:52:34,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:34,553 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-03-17 19:52:34,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:52:34,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:52:34,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:52:34,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:34,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:34,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 19:52:34,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:34,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-03-17 19:52:34,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-03-17 19:52:34,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:52:34,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:52:34,614 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:52:34,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:52:34,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:52:34,617 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2025-03-17 19:52:34,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 79 transitions. cyclomatic complexity: 22 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:34,635 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 79 transitions. cyclomatic complexity: 22. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 66 states and 83 transitions. Complement of second has 3 states. [2025-03-17 19:52:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2025-03-17 19:52:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:52:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-03-17 19:52:34,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 1 letters. [2025-03-17 19:52:34,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:34,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 13 letters. Loop has 1 letters. [2025-03-17 19:52:34,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:34,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 2 letters. [2025-03-17 19:52:34,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-17 19:52:34,636 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 83 transitions. [2025-03-17 19:52:34,637 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:52:34,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 0 states and 0 transitions. [2025-03-17 19:52:34,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-17 19:52:34,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-17 19:52:34,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-17 19:52:34,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-17 19:52:34,637 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:34,637 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:34,638 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 19:52:34,638 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-03-17 19:52:34,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-17 19:52:34,638 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-17 19:52:34,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-17 19:52:34,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 07:52:34 BoogieIcfgContainer [2025-03-17 19:52:34,646 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-17 19:52:34,647 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:52:34,647 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:52:34,647 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:52:34,648 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:52:30" (3/4) ... [2025-03-17 19:52:34,649 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 19:52:34,650 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:52:34,650 INFO L158 Benchmark]: Toolchain (without parser) took 4192.12ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 91.1MB in the end (delta: 14.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2025-03-17 19:52:34,651 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:34,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 137.66ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 96.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:52:34,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.18ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 95.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:34,651 INFO L158 Benchmark]: Boogie Preprocessor took 11.87ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 94.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:34,651 INFO L158 Benchmark]: IcfgBuilder took 162.00ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 83.9MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 19:52:34,651 INFO L158 Benchmark]: BuchiAutomizer took 3855.94ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 92.0MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:34,652 INFO L158 Benchmark]: Witness Printer took 2.76ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 91.1MB in the end (delta: 935.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:52:34,652 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 137.66ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 96.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.18ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 95.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.87ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 94.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 162.00ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 83.9MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3855.94ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 92.0MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.76ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 91.1MB in the end (delta: 935.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function ((long) xtmp + tmp) and consists of 6 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function ((((long) 2 * xtmp) + ((long) -2 * y)) + 1) and consists of 3 locations. One nondeterministic module has affine ranking function ((((long) 2 * xtmp) + ((long) -2 * y)) + 1) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 38 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax158 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf92 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-17 19:52:34,665 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