./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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:54:22,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:54:22,061 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-12 20:54:22,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:54:22,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:54:22,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:54:22,093 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:54:22,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:54:22,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:54:22,095 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:54:22,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:54:22,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:54:22,096 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:54:22,096 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 20:54:22,097 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 20:54:22,097 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 20:54:22,097 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 20:54:22,097 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 20:54:22,097 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 20:54:22,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:54:22,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 20:54:22,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:54:22,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:54:22,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 20:54:22,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 20:54:22,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 20:54:22,103 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:54:22,103 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:54:22,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:54:22,103 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 20:54:22,103 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:54:22,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:54:22,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:54:22,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:54:22,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:54:22,104 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 20:54:22,105 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2024-11-12 20:54:22,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:54:22,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:54:22,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:54:22,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:54:22,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:54:22,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/GCD3.c [2024-11-12 20:54:23,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:54:23,669 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:54:23,670 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c [2024-11-12 20:54:23,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70b651008/45b856d939274810b9125c8dd5b756fa/FLAG6c47d5b1e [2024-11-12 20:54:23,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70b651008/45b856d939274810b9125c8dd5b756fa [2024-11-12 20:54:23,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:54:23,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:54:23,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:54:23,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:54:23,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:54:23,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@683f8999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23, skipping insertion in model container [2024-11-12 20:54:23,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:54:23,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:54:23,850 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:54:23,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:54:23,870 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:54:23,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23 WrapperNode [2024-11-12 20:54:23,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:54:23,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:54:23,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:54:23,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:54:23,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,889 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-11-12 20:54:23,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:54:23,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:54:23,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:54:23,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:54:23,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,898 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,902 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-12 20:54:23,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:54:23,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:54:23,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:54:23,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:54:23,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (1/1) ... [2024-11-12 20:54:23,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:23,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:23,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:23,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-12 20:54:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:54:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:54:24,035 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:54:24,037 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:54:24,113 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-12 20:54:24,113 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:54:24,136 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:54:24,137 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 20:54:24,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:54:24 BoogieIcfgContainer [2024-11-12 20:54:24,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:54:24,138 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 20:54:24,138 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 20:54:24,140 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 20:54:24,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:54:24,141 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 08:54:23" (1/3) ... [2024-11-12 20:54:24,142 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@437c38b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:54:24, skipping insertion in model container [2024-11-12 20:54:24,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:54:24,142 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:54:23" (2/3) ... [2024-11-12 20:54:24,142 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@437c38b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:54:24, skipping insertion in model container [2024-11-12 20:54:24,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:54:24,142 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:54:24" (3/3) ... [2024-11-12 20:54:24,143 INFO L332 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2024-11-12 20:54:24,184 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 20:54:24,184 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 20:54:24,184 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 20:54:24,184 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 20:54:24,184 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 20:54:24,184 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 20:54:24,184 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 20:54:24,184 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 20:54:24,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:24,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-12 20:54:24,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:54:24,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:54:24,203 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:54:24,203 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-12 20:54:24,203 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 20:54:24,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:24,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-12 20:54:24,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:54:24,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:54:24,206 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:54:24,207 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-12 20:54:24,211 INFO L747 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;" [2024-11-12 20:54:24,212 INFO L749 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;" [2024-11-12 20:54:24,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:24,216 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 20:54:24,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:24,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352988487] [2024-11-12 20:54:24,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:24,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:24,274 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:24,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:24,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:24,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1216130396, now seen corresponding path program 1 times [2024-11-12 20:54:24,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:24,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11822987] [2024-11-12 20:54:24,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:24,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:54:24,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11822987] [2024-11-12 20:54:24,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11822987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:54:24,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802572836] [2024-11-12 20:54:24,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:24,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:54:24,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:24,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:54:24,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 20:54:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:24,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:54:24,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:24,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:54:24,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802572836] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:54:24,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:54:24,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-12 20:54:24,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293038366] [2024-11-12 20:54:24,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:54:24,418 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 20:54:24,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:54:24,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:54:24,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:54:24,440 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:24,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:54:24,458 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2024-11-12 20:54:24,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2024-11-12 20:54:24,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-12 20:54:24,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2024-11-12 20:54:24,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-12 20:54:24,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-12 20:54:24,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2024-11-12 20:54:24,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 20:54:24,464 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-12 20:54:24,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2024-11-12 20:54:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-12 20:54:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-11-12 20:54:24,480 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-12 20:54:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:54:24,484 INFO L426 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-11-12 20:54:24,484 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 20:54:24,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2024-11-12 20:54:24,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-12 20:54:24,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:54:24,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:54:24,485 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:54:24,485 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:54:24,485 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2024-11-12 20:54:24,485 INFO L749 eck$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;" [2024-11-12 20:54:24,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-12 20:54:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260207253] [2024-11-12 20:54:24,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:24,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:24,489 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:24,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:24,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:24,491 INFO L85 PathProgramCache]: Analyzing trace with hash -901313945, now seen corresponding path program 1 times [2024-11-12 20:54:24,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:24,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218326443] [2024-11-12 20:54:24,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:24,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:24,499 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:24,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:24,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:24,504 INFO L85 PathProgramCache]: Analyzing trace with hash 644982885, now seen corresponding path program 1 times [2024-11-12 20:54:24,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:24,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091917931] [2024-11-12 20:54:24,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:24,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:24,514 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:24,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:24,595 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:24,595 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:24,595 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:24,595 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:24,595 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:54:24,595 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,596 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:24,596 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:24,596 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration2_Loop [2024-11-12 20:54:24,596 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:24,596 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:24,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,677 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:24,678 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:54:24,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:24,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:24,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-12 20:54:24,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:24,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:24,724 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:54:24,724 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:54:24,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-12 20:54:24,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:24,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:24,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-12 20:54:24,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:24,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:24,760 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:54:24,760 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:54:24,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-12 20:54:24,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:24,775 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:24,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-12 20:54:24,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:24,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:24,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:24,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:24,811 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:24,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-12 20:54:24,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:54:24,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:24,853 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:54:24,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-12 20:54:24,858 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:24,858 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:24,858 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:24,858 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:24,858 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:54:24,858 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,858 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:24,858 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:24,859 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration2_Loop [2024-11-12 20:54:24,859 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:24,859 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:24,860 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:24,922 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:24,927 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:54:24,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:24,929 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:24,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-12 20:54:24,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:24,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:24,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:24,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:24,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:24,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:24,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:24,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:24,949 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:24,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-12 20:54:24,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:24,961 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:24,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-12 20:54:24,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:24,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:24,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:24,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:24,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:24,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:54:24,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:54:24,978 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:24,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:24,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:24,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:24,992 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:24,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-12 20:54:24,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:25,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:25,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:25,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:25,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:25,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:25,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:25,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:25,009 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:54:25,012 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:54:25,013 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 20:54:25,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-12 20:54:25,017 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:54:25,017 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:54:25,017 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:54:25,018 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-12 20:54:25,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-12 20:54:25,036 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:54:25,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:25,061 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:54:25,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:25,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:54:25,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:25,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:54:25,138 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-12 20:54:25,139 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:25,186 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. 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 37 states and 48 transitions. Complement of second has 10 states. [2024-11-12 20:54:25,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-12 20:54:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2024-11-12 20:54:25,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 2 letters. Loop has 7 letters. [2024-11-12 20:54:25,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:25,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 9 letters. Loop has 7 letters. [2024-11-12 20:54:25,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:25,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 2 letters. Loop has 14 letters. [2024-11-12 20:54:25,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:25,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2024-11-12 20:54:25,192 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-11-12 20:54:25,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 26 states and 32 transitions. [2024-11-12 20:54:25,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-12 20:54:25,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-12 20:54:25,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2024-11-12 20:54:25,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:54:25,193 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-12 20:54:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2024-11-12 20:54:25,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-11-12 20:54:25,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:25,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-11-12 20:54:25,195 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-12 20:54:25,195 INFO L426 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-12 20:54:25,196 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 20:54:25,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2024-11-12 20:54:25,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-12 20:54:25,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:54:25,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:54:25,197 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:54:25,197 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-12 20:54:25,197 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" [2024-11-12 20:54:25,197 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" [2024-11-12 20:54:25,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:25,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725014, now seen corresponding path program 1 times [2024-11-12 20:54:25,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:25,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941675780] [2024-11-12 20:54:25,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,204 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:25,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:25,208 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2024-11-12 20:54:25,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:25,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041265159] [2024-11-12 20:54:25,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:25,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,214 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:25,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:25,217 INFO L85 PathProgramCache]: Analyzing trace with hash 297900620, now seen corresponding path program 2 times [2024-11-12 20:54:25,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:25,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076129814] [2024-11-12 20:54:25,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:25,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,223 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:25,280 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:25,280 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:25,280 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:25,280 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:25,280 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:54:25,280 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,281 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:25,281 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:25,281 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Lasso [2024-11-12 20:54:25,281 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:25,281 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:25,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,365 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:25,365 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:54:25,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,367 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-12 20:54:25,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:25,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:25,389 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:54:25,389 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:54:25,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-12 20:54:25,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,401 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-12 20:54:25,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:25,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:25,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-12 20:54:25,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,433 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-12 20:54:25,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:54:25,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:25,531 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:54:25,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-12 20:54:25,537 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:25,537 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:25,537 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:25,537 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:25,537 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:54:25,537 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,537 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:25,537 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:25,537 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Lasso [2024-11-12 20:54:25,537 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:25,537 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:25,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,546 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,549 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,557 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:25,602 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:25,602 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:54:25,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,604 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-12 20:54:25,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:25,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:25,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:25,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:25,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:25,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:54:25,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:54:25,621 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:25,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-12 20:54:25,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,635 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-12 20:54:25,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:25,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:25,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:25,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:25,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:25,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:25,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:25,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:25,650 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:25,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:25,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,661 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-12 20:54:25,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:25,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:25,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:25,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:25,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:25,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:25,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:25,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:25,675 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:25,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-12 20:54:25,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,687 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-12 20:54:25,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:25,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:25,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:25,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:25,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:25,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:25,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:25,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:25,701 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:25,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:25,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,712 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-12 20:54:25,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:25,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:25,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:25,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:25,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:25,726 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:54:25,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:54:25,731 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:54:25,738 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-12 20:54:25,738 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-12 20:54:25,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:25,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:25,740 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:25,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-12 20:54:25,742 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:54:25,753 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-12 20:54:25,753 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:54:25,753 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2024-11-12 20:54:25,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:25,796 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-12 20:54:25,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-12 20:54:25,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:25,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-12 20:54:25,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 20:54:25,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:25,861 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:54:25,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:54:25,862 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-11-12 20:54:25,862 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:25,893 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 7. 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 27 states and 34 transitions. Complement of second has 4 states. [2024-11-12 20:54:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-12 20:54:25,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-12 20:54:25,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2024-11-12 20:54:25,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:25,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 1 letters. [2024-11-12 20:54:25,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:25,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-12 20:54:25,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:25,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2024-11-12 20:54:25,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-12 20:54:25,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2024-11-12 20:54:25,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-12 20:54:25,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-12 20:54:25,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2024-11-12 20:54:25,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:54:25,897 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-12 20:54:25,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2024-11-12 20:54:25,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2024-11-12 20:54:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:25,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-12 20:54:25,899 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-12 20:54:25,899 INFO L426 stractBuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-12 20:54:25,899 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 20:54:25,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2024-11-12 20:54:25,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-12 20:54:25,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:54:25,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:54:25,900 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:54:25,900 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:54:25,900 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);" [2024-11-12 20:54:25,900 INFO L749 eck$LassoCheckResult]: Loop: "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;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);" [2024-11-12 20:54:25,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:25,900 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 1 times [2024-11-12 20:54:25,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:25,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279212261] [2024-11-12 20:54:25,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:25,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,908 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:25,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1601495771, now seen corresponding path program 2 times [2024-11-12 20:54:25,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:25,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789036702] [2024-11-12 20:54:25,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:25,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,915 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:25,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:25,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:25,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170556, now seen corresponding path program 1 times [2024-11-12 20:54:25,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:25,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628624999] [2024-11-12 20:54:25,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:25,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:26,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:54:26,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628624999] [2024-11-12 20:54:26,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628624999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:54:26,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495263454] [2024-11-12 20:54:26,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:26,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:54:26,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,004 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-12 20:54:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:26,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 20:54:26,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:26,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:54:26,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495263454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:54:26,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:54:26,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-12 20:54:26,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5993768] [2024-11-12 20:54:26,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:54:26,139 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:26,139 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:26,139 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:26,139 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:26,139 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:54:26,139 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,140 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:26,140 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:26,140 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Loop [2024-11-12 20:54:26,140 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:26,140 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:26,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,191 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:26,191 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:54:26,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,192 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) [2024-11-12 20:54:26,193 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 [2024-11-12 20:54:26,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:26,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:26,211 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:54:26,211 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:54:26,221 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 [2024-11-12 20:54:26,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,222 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-12 20:54:26,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:26,224 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:26,235 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:54:26,235 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:54:26,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:26,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,246 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-12 20:54:26,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:26,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:26,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:26,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,279 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-12 20:54:26,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:54:26,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:26,562 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:54:26,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-12 20:54:26,567 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:26,567 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:26,567 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:26,567 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:26,567 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:54:26,567 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,567 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:26,567 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:26,567 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Loop [2024-11-12 20:54:26,567 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:26,568 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:26,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,583 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,623 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:26,623 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:54:26,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,625 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-12 20:54:26,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:26,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:26,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:26,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:26,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:26,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:54:26,638 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:54:26,641 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:26,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:26,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,653 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-12 20:54:26,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:26,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:26,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:26,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:26,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:26,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:26,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:26,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:26,668 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:54:26,671 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-12 20:54:26,671 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-12 20:54:26,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,672 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-12 20:54:26,674 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:54:26,674 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:54:26,674 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:54:26,674 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2024-11-12 20:54:26,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:26,685 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:54:26,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:26,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:54:26,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:26,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:54:26,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:54:26,728 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-12 20:54:26,729 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:26,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 68 states and 86 transitions. Complement of second has 9 states. [2024-11-12 20:54:26,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-12 20:54:26,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2024-11-12 20:54:26,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 8 letters. Loop has 7 letters. [2024-11-12 20:54:26,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:26,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 15 letters. Loop has 7 letters. [2024-11-12 20:54:26,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:26,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 8 letters. Loop has 14 letters. [2024-11-12 20:54:26,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:26,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 86 transitions. [2024-11-12 20:54:26,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-12 20:54:26,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 54 states and 68 transitions. [2024-11-12 20:54:26,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-11-12 20:54:26,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2024-11-12 20:54:26,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2024-11-12 20:54:26,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:54:26,755 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2024-11-12 20:54:26,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2024-11-12 20:54:26,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2024-11-12 20:54:26,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 46 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2024-11-12 20:54:26,761 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 59 transitions. [2024-11-12 20:54:26,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:54:26,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 20:54:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-12 20:54:26,763 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:26,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 20:54:26,810 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2024-11-12 20:54:26,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2024-11-12 20:54:26,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-12 20:54:26,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 37 transitions. [2024-11-12 20:54:26,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-11-12 20:54:26,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-12 20:54:26,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2024-11-12 20:54:26,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:54:26,812 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-11-12 20:54:26,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2024-11-12 20:54:26,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2024-11-12 20:54:26,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:26,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-11-12 20:54:26,817 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-11-12 20:54:26,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:54:26,818 INFO L426 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-11-12 20:54:26,818 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-12 20:54:26,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2024-11-12 20:54:26,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-12 20:54:26,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:54:26,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:54:26,819 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:54:26,819 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:54:26,819 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);" [2024-11-12 20:54:26,819 INFO L749 eck$LassoCheckResult]: Loop: "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;" "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);" [2024-11-12 20:54:26,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:26,819 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 2 times [2024-11-12 20:54:26,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:26,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880358154] [2024-11-12 20:54:26,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:26,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:26,827 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:26,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:26,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1893238745, now seen corresponding path program 1 times [2024-11-12 20:54:26,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:26,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433113317] [2024-11-12 20:54:26,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:26,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:26,842 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:26,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:26,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:26,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1545352926, now seen corresponding path program 2 times [2024-11-12 20:54:26,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:26,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684081231] [2024-11-12 20:54:26,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:26,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:26,860 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:26,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:26,907 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:26,907 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:26,908 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:26,908 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:26,908 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:54:26,908 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,908 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:26,908 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:26,908 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2024-11-12 20:54:26,908 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:26,910 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:26,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:26,955 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:26,955 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:54:26,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,957 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-12 20:54:26,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:26,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:26,979 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:54:26,980 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:54:26,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-12 20:54:26,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:26,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:26,992 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:26,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-12 20:54:26,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:26,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:27,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:27,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,017 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:27,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-12 20:54:27,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:54:27,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:27,184 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:54:27,189 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 [2024-11-12 20:54:27,189 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:27,189 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:27,189 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:27,189 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:27,189 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:54:27,189 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,189 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:27,189 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:27,189 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2024-11-12 20:54:27,189 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:27,190 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:27,190 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,201 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,235 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:27,235 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:54:27,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,236 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:27,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-12 20:54:27,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:27,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:27,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:27,250 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:27,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:27,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,261 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:27,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-12 20:54:27,262 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:27,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:27,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:27,275 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:54:27,277 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-12 20:54:27,277 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-12 20:54:27,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,278 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:27,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-12 20:54:27,280 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:54:27,280 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-12 20:54:27,280 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:54:27,280 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2024-11-12 20:54:27,291 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 [2024-11-12 20:54:27,291 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-12 20:54:27,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:27,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 20:54:27,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:27,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:54:27,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:27,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:54:27,352 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-12 20:54:27,352 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:27,376 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 55 transitions. Complement of second has 6 states. [2024-11-12 20:54:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-12 20:54:27,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:27,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-11-12 20:54:27,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 8 letters. [2024-11-12 20:54:27,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:27,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 8 letters. [2024-11-12 20:54:27,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:27,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 16 letters. [2024-11-12 20:54:27,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:27,378 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2024-11-12 20:54:27,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-12 20:54:27,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 46 transitions. [2024-11-12 20:54:27,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-12 20:54:27,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-12 20:54:27,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2024-11-12 20:54:27,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-12 20:54:27,380 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2024-11-12 20:54:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2024-11-12 20:54:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2024-11-12 20:54:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2024-11-12 20:54:27,384 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-11-12 20:54:27,384 INFO L426 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2024-11-12 20:54:27,384 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-12 20:54:27,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2024-11-12 20:54:27,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-12 20:54:27,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:54:27,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:54:27,384 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:54:27,384 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-12 20:54:27,385 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" "assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" "assume !(main_~xtmp~0#1 >= main_~y~0#1);" "main_~y~0#1 := main_~xtmp~0#1;" "main_~x~0#1 := main_~tmp~0#1;" "assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1;" "assume !(0 == main_~y~0#1);" "assume !(main_~y~0#1 < 0);" "assume main_~xtmp~0#1 > 0;" [2024-11-12 20:54:27,385 INFO L749 eck$LassoCheckResult]: Loop: "assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1;" [2024-11-12 20:54:27,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:27,385 INFO L85 PathProgramCache]: Analyzing trace with hash 186101220, now seen corresponding path program 3 times [2024-11-12 20:54:27,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:27,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582562290] [2024-11-12 20:54:27,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:27,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:27,396 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:27,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:27,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:27,400 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2024-11-12 20:54:27,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:27,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448918888] [2024-11-12 20:54:27,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:27,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:27,402 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:27,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:27,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:27,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170558, now seen corresponding path program 4 times [2024-11-12 20:54:27,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:54:27,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120500733] [2024-11-12 20:54:27,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:54:27,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:54:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:27,414 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:54:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:54:27,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:54:27,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-12 20:54:27,497 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 [2024-11-12 20:54:27,516 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:27,517 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:27,517 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:27,517 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:27,517 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-12 20:54:27,517 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,517 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:27,517 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:27,517 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Lasso [2024-11-12 20:54:27,517 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:27,517 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:27,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,592 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:27,592 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-12 20:54:27,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,594 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 20:54:27,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-12 20:54:27,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:27,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:27,607 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-12 20:54:27,608 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-12 20:54:27,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-12 20:54:27,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,619 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) [2024-11-12 20:54:27,619 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 [2024-11-12 20:54:27,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-12 20:54:27,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:27,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:27,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,651 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) [2024-11-12 20:54:27,652 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 [2024-11-12 20:54:27,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-12 20:54:27,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-12 20:54:27,748 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-12 20:54:27,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:27,753 INFO L204 LassoAnalysis]: Preferences: [2024-11-12 20:54:27,753 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-12 20:54:27,753 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-12 20:54:27,753 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-12 20:54:27,753 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-12 20:54:27,754 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,754 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-12 20:54:27,754 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-12 20:54:27,754 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Lasso [2024-11-12 20:54:27,754 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-12 20:54:27,754 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-12 20:54:27,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,765 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-12 20:54:27,823 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-12 20:54:27,824 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-12 20:54:27,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,825 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) [2024-11-12 20:54:27,826 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 [2024-11-12 20:54:27,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,839 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:54:27,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:54:27,841 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:27,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:27,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,853 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) [2024-11-12 20:54:27,854 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 [2024-11-12 20:54:27,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:27,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:27,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:27,867 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:27,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:27,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,879 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) [2024-11-12 20:54:27,881 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 [2024-11-12 20:54:27,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,893 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:54:27,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:54:27,896 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:27,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:27,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,908 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) [2024-11-12 20:54:27,909 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 [2024-11-12 20:54:27,910 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:27,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:27,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:27,921 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:27,932 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 [2024-11-12 20:54:27,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,933 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) [2024-11-12 20:54:27,934 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 [2024-11-12 20:54:27,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:27,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:27,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:27,947 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:27,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-12 20:54:27,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,958 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) [2024-11-12 20:54:27,959 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 [2024-11-12 20:54:27,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-12 20:54:27,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-12 20:54:27,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-12 20:54:27,971 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-12 20:54:27,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:27,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:27,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:27,982 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) [2024-11-12 20:54:27,983 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 [2024-11-12 20:54:27,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-12 20:54:27,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-12 20:54:27,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-12 20:54:27,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-12 20:54:27,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-12 20:54:27,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-12 20:54:27,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-12 20:54:28,002 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-12 20:54:28,007 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-12 20:54:28,007 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-12 20:54:28,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:54:28,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:54:28,009 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) [2024-11-12 20:54:28,010 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 [2024-11-12 20:54:28,010 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-12 20:54:28,021 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-12 20:54:28,022 INFO L474 LassoAnalysis]: Proved termination. [2024-11-12 20:54:28,022 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2024-11-12 20:54:28,032 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 [2024-11-12 20:54:28,037 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-12 20:54:28,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:28,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 20:54:28,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:28,097 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:54:28,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:54:28,098 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-11-12 20:54:28,098 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:28,115 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 35 transitions. Complement of second has 4 states. [2024-11-12 20:54:28,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-12 20:54:28,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-12 20:54:28,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 14 letters. Loop has 1 letters. [2024-11-12 20:54:28,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:28,117 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:54:28,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:28,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 20:54:28,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:28,176 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:54:28,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:28,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:54:28,177 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2024-11-12 20:54:28,177 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:28,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 35 transitions. Complement of second has 4 states. [2024-11-12 20:54:28,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-12 20:54:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:28,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-12 20:54:28,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 14 letters. Loop has 1 letters. [2024-11-12 20:54:28,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:28,199 INFO L683 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-12 20:54:28,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:54:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:28,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 20:54:28,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:54:28,260 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:54:28,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:54:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:54:28,261 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2024-11-12 20:54:28,262 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:28,281 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 36 transitions. Complement of second has 3 states. [2024-11-12 20:54:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2024-11-12 20:54:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:54:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-12 20:54:28,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 14 letters. Loop has 1 letters. [2024-11-12 20:54:28,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:28,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 15 letters. Loop has 1 letters. [2024-11-12 20:54:28,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:28,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2024-11-12 20:54:28,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-12 20:54:28,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 36 transitions. [2024-11-12 20:54:28,285 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:54:28,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2024-11-12 20:54:28,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-12 20:54:28,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-12 20:54:28,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-12 20:54:28,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 20:54:28,285 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:54:28,286 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:54:28,288 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 20:54:28,288 INFO L333 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-12 20:54:28,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-12 20:54:28,288 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-12 20:54:28,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-12 20:54:28,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 08:54:28 BoogieIcfgContainer [2024-11-12 20:54:28,295 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 20:54:28,295 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:54:28,296 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:54:28,296 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:54:28,296 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:54:24" (3/4) ... [2024-11-12 20:54:28,297 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-12 20:54:28,298 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:54:28,299 INFO L158 Benchmark]: Toolchain (without parser) took 4611.26ms. Allocated memory was 190.8MB in the beginning and 285.2MB in the end (delta: 94.4MB). Free memory was 121.7MB in the beginning and 190.9MB in the end (delta: -69.2MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2024-11-12 20:54:28,299 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:54:28,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.08ms. Allocated memory is still 190.8MB. Free memory was 121.4MB in the beginning and 110.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 20:54:28,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.52ms. Allocated memory is still 190.8MB. Free memory was 110.0MB in the beginning and 108.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:54:28,299 INFO L158 Benchmark]: Boogie Preprocessor took 17.59ms. Allocated memory is still 190.8MB. Free memory was 108.6MB in the beginning and 107.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:54:28,300 INFO L158 Benchmark]: RCFGBuilder took 228.81ms. Allocated memory is still 190.8MB. Free memory was 107.2MB in the beginning and 159.9MB in the end (delta: -52.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-12 20:54:28,300 INFO L158 Benchmark]: BuchiAutomizer took 4157.52ms. Allocated memory was 190.8MB in the beginning and 285.2MB in the end (delta: 94.4MB). Free memory was 159.9MB in the beginning and 190.9MB in the end (delta: -31.0MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2024-11-12 20:54:28,300 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 285.2MB. Free memory is still 190.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:54:28,301 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 149.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.08ms. Allocated memory is still 190.8MB. Free memory was 121.4MB in the beginning and 110.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.52ms. Allocated memory is still 190.8MB. Free memory was 110.0MB in the beginning and 108.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.59ms. Allocated memory is still 190.8MB. Free memory was 108.6MB in the beginning and 107.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 228.81ms. Allocated memory is still 190.8MB. Free memory was 107.2MB in the beginning and 159.9MB in the end (delta: -52.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 4157.52ms. Allocated memory was 190.8MB in the beginning and 285.2MB in the end (delta: 94.4MB). Free memory was 159.9MB in the beginning and 190.9MB in the end (delta: -31.0MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 285.2MB. Free memory is still 190.9MB. 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 7 terminating modules (2 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 6 locations. One deterministic module has affine ranking function ((((long) 2 * xtmp) + ((long) -2 * y)) + 1) and consists of 3 locations. One deterministic module has affine ranking function xtmp and consists of 6 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function ((((long) 2 * xtmp) + ((long) -2 * y)) + 1) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 26 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 59 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf92 smp95 dnf100 smp100 tf105 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-12 20:54:28,319 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 [2024-11-12 20:54:28,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-12 20:54:28,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 20:54:28,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE