./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/GCD4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3061b6dc 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/GCD4.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 f256d3c992d0432c53ebd28135ea0740504754f166830088ee9ee3a40836ca36 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:15:24,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:15:24,314 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-19 14:15:24,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:15:24,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:15:24,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:15:24,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:15:24,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:15:24,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:15:24,348 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:15:24,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:15:24,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:15:24,348 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:15:24,349 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-19 14:15:24,349 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-19 14:15:24,349 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-19 14:15:24,349 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-19 14:15:24,350 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-19 14:15:24,350 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-19 14:15:24,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:15:24,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-19 14:15:24,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:15:24,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:15:24,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-19 14:15:24,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-19 14:15:24,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-19 14:15:24,354 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:15:24,354 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:15:24,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:15:24,355 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-19 14:15:24,355 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:15:24,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:15:24,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:15:24,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:15:24,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:15:24,356 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-19 14:15:24,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f256d3c992d0432c53ebd28135ea0740504754f166830088ee9ee3a40836ca36 [2024-11-19 14:15:24,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:15:24,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:15:24,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:15:24,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:15:24,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:15:24,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/GCD4.c [2024-11-19 14:15:26,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:15:26,281 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:15:26,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD4.c [2024-11-19 14:15:26,287 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f74cd3bcd/5674a70032bf4250a63bb23f96620977/FLAG0cea52af6 [2024-11-19 14:15:26,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f74cd3bcd/5674a70032bf4250a63bb23f96620977 [2024-11-19 14:15:26,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:15:26,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:15:26,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:15:26,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:15:26,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:15:26,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f7f291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26, skipping insertion in model container [2024-11-19 14:15:26,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:15:26,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:15:26,454 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:15:26,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:15:26,476 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:15:26,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26 WrapperNode [2024-11-19 14:15:26,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:15:26,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:15:26,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:15:26,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:15:26,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,497 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-19 14:15:26,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:15:26,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:15:26,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:15:26,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:15:26,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,513 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-19 14:15:26,513 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:15:26,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:15:26,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:15:26,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:15:26,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (1/1) ... [2024-11-19 14:15:26,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:26,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:26,548 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) [2024-11-19 14:15:26,552 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 [2024-11-19 14:15:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:15:26,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:15:26,644 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:15:26,646 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:15:26,696 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-19 14:15:26,696 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:15:26,705 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:15:26,705 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 14:15:26,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:26 BoogieIcfgContainer [2024-11-19 14:15:26,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:15:26,706 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-19 14:15:26,706 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-19 14:15:26,709 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-19 14:15:26,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:15:26,710 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 02:15:26" (1/3) ... [2024-11-19 14:15:26,711 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15201d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:15:26, skipping insertion in model container [2024-11-19 14:15:26,711 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:15:26,711 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:15:26" (2/3) ... [2024-11-19 14:15:26,711 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15201d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 02:15:26, skipping insertion in model container [2024-11-19 14:15:26,711 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-19 14:15:26,711 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:26" (3/3) ... [2024-11-19 14:15:26,716 INFO L332 chiAutomizerObserver]: Analyzing ICFG GCD4.c [2024-11-19 14:15:26,761 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-19 14:15:26,761 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-19 14:15:26,761 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-19 14:15:26,761 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-19 14:15:26,761 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-19 14:15:26,762 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-19 14:15:26,762 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-19 14:15:26,762 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-19 14:15:26,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:15:26,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-19 14:15:26,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:15:26,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:15:26,778 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:15:26,778 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:15:26,778 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-19 14:15:26,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:15:26,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-19 14:15:26,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:15:26,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:15:26,779 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-19 14:15:26,779 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:15:26,784 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L13-2true [2024-11-19 14:15:26,784 INFO L747 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 3#L17-2true assume !(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 9#L17-3true main_~y~0#1 := main_~xtmp~0#1;main_~x~0#1 := main_~tmp~0#1; 5#L13-2true [2024-11-19 14:15:26,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:26,788 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-19 14:15:26,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:26,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337166391] [2024-11-19 14:15:26,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:26,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:26,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:26,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:26,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2024-11-19 14:15:26,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:26,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601344282] [2024-11-19 14:15:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:26,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:26,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:26,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:26,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:26,922 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2024-11-19 14:15:26,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:26,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797378750] [2024-11-19 14:15:26,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:26,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:26,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:26,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:27,049 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:27,049 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:27,049 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:27,049 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:27,050 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:15:27,050 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,050 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:27,050 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:27,050 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration1_Loop [2024-11-19 14:15:27,050 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:27,050 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:27,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,137 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:27,137 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:15:27,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:15:27,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-19 14:15:27,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:27,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:27,172 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:27,172 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: [] [2024-11-19 14:15:27,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:27,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,187 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) [2024-11-19 14:15:27,190 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 [2024-11-19 14:15:27,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:27,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:27,212 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:27,212 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: [] [2024-11-19 14:15:27,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:27,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,224 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) [2024-11-19 14:15:27,231 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 [2024-11-19 14:15:27,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:27,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:27,244 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:27,244 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~xtmp~0#1=0} Honda state: {ULTIMATE.start_main_~xtmp~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:15:27,258 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 [2024-11-19 14:15:27,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,260 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) [2024-11-19 14:15:27,261 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 [2024-11-19 14:15:27,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:27,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:27,295 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 [2024-11-19 14:15:27,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,300 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) [2024-11-19 14:15:27,301 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 [2024-11-19 14:15:27,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:15:27,301 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:27,340 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:15:27,346 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 [2024-11-19 14:15:27,346 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:27,347 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:27,347 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:27,347 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:27,347 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:15:27,347 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,347 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:27,347 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:27,347 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration1_Loop [2024-11-19 14:15:27,347 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:27,348 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:27,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,407 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:27,410 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:15:27,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,413 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) [2024-11-19 14:15:27,443 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 [2024-11-19 14:15:27,450 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 [2024-11-19 14:15:27,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:27,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:27,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:27,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:27,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:27,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:27,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:27,498 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:27,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:27,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,513 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) [2024-11-19 14:15:27,517 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 [2024-11-19 14:15:27,518 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 [2024-11-19 14:15:27,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:27,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:27,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:27,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:27,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:15:27,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:15:27,535 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:27,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-19 14:15:27,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,555 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) [2024-11-19 14:15:27,556 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 [2024-11-19 14:15:27,558 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 [2024-11-19 14:15:27,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:27,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:27,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:27,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:27,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:15:27,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:15:27,576 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:27,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:27,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,591 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) [2024-11-19 14:15:27,592 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 [2024-11-19 14:15:27,593 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 [2024-11-19 14:15:27,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:27,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:27,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:27,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:27,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:27,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:27,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:27,610 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:27,621 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 [2024-11-19 14:15:27,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,625 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) [2024-11-19 14:15:27,630 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 [2024-11-19 14:15:27,631 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 [2024-11-19 14:15:27,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:27,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:27,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:27,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:27,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:27,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:27,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:27,652 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:15:27,657 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-19 14:15:27,657 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-19 14:15:27,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:27,662 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) [2024-11-19 14:15:27,664 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 [2024-11-19 14:15:27,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:15:27,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:15:27,669 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:15:27,669 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 [] [2024-11-19 14:15:27,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:27,691 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:15:27,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:27,730 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:15:27,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:27,744 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 14:15:27,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:15:27,829 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 [2024-11-19 14:15:27,831 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:15:27,878 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 41 transitions. Complement of second has 10 states. [2024-11-19 14:15:27,881 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 [2024-11-19 14:15:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:15:27,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2024-11-19 14:15:27,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-19 14:15:27,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:27,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-19 14:15:27,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:27,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-19 14:15:27,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:27,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 41 transitions. [2024-11-19 14:15:27,890 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-19 14:15:27,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 16 transitions. [2024-11-19 14:15:27,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-19 14:15:27,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-19 14:15:27,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2024-11-19 14:15:27,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:15:27,895 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2024-11-19 14:15:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2024-11-19 14:15:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-19 14:15:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 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) [2024-11-19 14:15:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2024-11-19 14:15:27,917 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2024-11-19 14:15:27,917 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2024-11-19 14:15:27,917 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-19 14:15:27,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2024-11-19 14:15:27,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-19 14:15:27,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:15:27,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:15:27,918 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-19 14:15:27,918 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-19 14:15:27,918 INFO L745 eck$LassoCheckResult]: Stem: 87#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 88#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 90#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 80#L17-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 81#L17-2 [2024-11-19 14:15:27,918 INFO L747 eck$LassoCheckResult]: Loop: 81#L17-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 81#L17-2 [2024-11-19 14:15:27,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:27,919 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2024-11-19 14:15:27,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:27,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307938012] [2024-11-19 14:15:27,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:27,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:27,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:27,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:27,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:27,930 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2024-11-19 14:15:27,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:27,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364169510] [2024-11-19 14:15:27,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:27,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:27,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:27,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:27,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:27,936 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2024-11-19 14:15:27,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:27,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033165700] [2024-11-19 14:15:27,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:15:27,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:27,943 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:15:27,944 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:15:27,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:27,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:27,971 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:27,971 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:27,971 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:27,971 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:27,971 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:15:27,971 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:27,971 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:27,971 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:27,971 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration2_Loop [2024-11-19 14:15:27,972 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:27,972 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:27,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:27,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,017 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:28,017 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:15:28,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,050 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) [2024-11-19 14:15:28,055 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 [2024-11-19 14:15:28,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:28,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:28,081 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:28,082 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: [] [2024-11-19 14:15:28,099 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 [2024-11-19 14:15:28,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,105 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) [2024-11-19 14:15:28,114 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 [2024-11-19 14:15:28,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:28,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:28,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:28,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,145 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) [2024-11-19 14:15:28,146 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 [2024-11-19 14:15:28,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:15:28,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:28,252 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:15:28,257 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 [2024-11-19 14:15:28,258 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:28,258 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:28,258 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:28,258 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:28,258 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:15:28,258 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,258 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:28,258 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:28,258 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration2_Loop [2024-11-19 14:15:28,258 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:28,258 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:28,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,264 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,304 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:28,305 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:15:28,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,309 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) [2024-11-19 14:15:28,313 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 [2024-11-19 14:15:28,314 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 [2024-11-19 14:15:28,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:28,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:28,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:28,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:28,327 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:15:28,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:15:28,331 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:28,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:28,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,346 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) [2024-11-19 14:15:28,347 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 [2024-11-19 14:15:28,348 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 [2024-11-19 14:15:28,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:28,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:28,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:28,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:28,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:28,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:28,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:28,363 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:15:28,368 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-19 14:15:28,368 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-19 14:15:28,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,369 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) [2024-11-19 14:15:28,372 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 [2024-11-19 14:15:28,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:15:28,373 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:15:28,373 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:15:28,373 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 [] [2024-11-19 14:15:28,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-19 14:15:28,391 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:15:28,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:28,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:15:28,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:28,416 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:15:28,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:28,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:15:28,417 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-19 14:15:28,417 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:15:28,425 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2024-11-19 14:15:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:15:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:15:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-19 14:15:28,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 1 letters. [2024-11-19 14:15:28,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:28,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2024-11-19 14:15:28,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:28,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-19 14:15:28,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:28,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2024-11-19 14:15:28,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-19 14:15:28,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 19 transitions. [2024-11-19 14:15:28,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-19 14:15:28,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-19 14:15:28,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2024-11-19 14:15:28,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:15:28,429 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2024-11-19 14:15:28,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2024-11-19 14:15:28,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-19 14:15:28,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 11 states have internal predecessors, (18), 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) [2024-11-19 14:15:28,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2024-11-19 14:15:28,430 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 18 transitions. [2024-11-19 14:15:28,430 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2024-11-19 14:15:28,430 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-19 14:15:28,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2024-11-19 14:15:28,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-19 14:15:28,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:15:28,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:15:28,432 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-19 14:15:28,432 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-19 14:15:28,432 INFO L745 eck$LassoCheckResult]: Stem: 146#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 149#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 144#L17-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 150#L17-2 assume !(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 140#L17-3 [2024-11-19 14:15:28,432 INFO L747 eck$LassoCheckResult]: Loop: 140#L17-3 main_~y~0#1 := main_~xtmp~0#1;main_~x~0#1 := main_~tmp~0#1; 142#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 139#L17-2 assume !(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 140#L17-3 [2024-11-19 14:15:28,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:28,433 INFO L85 PathProgramCache]: Analyzing trace with hash 28699942, now seen corresponding path program 1 times [2024-11-19 14:15:28,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:28,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185137803] [2024-11-19 14:15:28,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:28,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:28,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:28,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:28,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:28,442 INFO L85 PathProgramCache]: Analyzing trace with hash 53214, now seen corresponding path program 2 times [2024-11-19 14:15:28,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:28,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654897945] [2024-11-19 14:15:28,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:15:28,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:28,447 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:15:28,447 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:15:28,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:28,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:28,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:28,451 INFO L85 PathProgramCache]: Analyzing trace with hash 301503641, now seen corresponding path program 1 times [2024-11-19 14:15:28,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:28,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726115463] [2024-11-19 14:15:28,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:28,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:15:28,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:15:28,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726115463] [2024-11-19 14:15:28,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726115463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:15:28,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80348439] [2024-11-19 14:15:28,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:28,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:15:28,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,554 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:15:28,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 14:15:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:28,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 14:15:28,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:15:28,617 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:15:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:15:28,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80348439] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:15:28,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:15:28,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:15:28,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713947792] [2024-11-19 14:15:28,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:15:28,733 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:28,734 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:28,734 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:28,734 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:28,734 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:15:28,734 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,734 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:28,734 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:28,734 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration3_Loop [2024-11-19 14:15:28,734 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:28,734 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:28,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,782 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:28,782 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:15:28,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,786 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:15:28,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-19 14:15:28,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:28,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:28,801 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:28,801 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: [] [2024-11-19 14:15:28,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-19 14:15:28,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,813 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) [2024-11-19 14:15:28,814 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 [2024-11-19 14:15:28,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:28,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:28,832 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:28,832 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: [] [2024-11-19 14:15:28,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-19 14:15:28,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,848 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) [2024-11-19 14:15:28,850 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 [2024-11-19 14:15:28,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:28,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:28,865 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:28,865 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:15:28,875 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 [2024-11-19 14:15:28,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,877 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) [2024-11-19 14:15:28,878 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 [2024-11-19 14:15:28,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:28,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:28,900 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 [2024-11-19 14:15:28,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:28,902 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) [2024-11-19 14:15:28,903 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 [2024-11-19 14:15:28,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:15:28,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:28,965 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:15:28,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:28,970 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:28,970 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:28,971 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:28,971 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:28,971 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:15:28,971 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:28,971 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:28,971 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:28,971 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration3_Loop [2024-11-19 14:15:28,971 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:28,971 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:28,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,983 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:28,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,041 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:29,041 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:15:29,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,044 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) [2024-11-19 14:15:29,045 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 [2024-11-19 14:15:29,046 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 [2024-11-19 14:15:29,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:29,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:29,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:29,057 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:29,067 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 [2024-11-19 14:15:29,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,070 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) [2024-11-19 14:15:29,071 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 [2024-11-19 14:15:29,072 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 [2024-11-19 14:15:29,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:29,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:29,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:29,085 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:29,095 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 [2024-11-19 14:15:29,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,097 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) [2024-11-19 14:15:29,098 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 [2024-11-19 14:15:29,098 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 [2024-11-19 14:15:29,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:15:29,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:15:29,113 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:29,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:29,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,128 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) [2024-11-19 14:15:29,129 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 [2024-11-19 14:15:29,129 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 [2024-11-19 14:15:29,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:29,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:29,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:29,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:15:29,146 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:15:29,146 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 14:15:29,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,150 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) [2024-11-19 14:15:29,151 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 [2024-11-19 14:15:29,151 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:15:29,151 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:15:29,151 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:15:29,151 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 [] [2024-11-19 14:15:29,161 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 [2024-11-19 14:15:29,161 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:15:29,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:29,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:15:29,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:29,193 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 14:15:29,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:29,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:15:29,219 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 [2024-11-19 14:15:29,219 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-11-19 14:15:29,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 32 states and 49 transitions. Complement of second has 8 states. [2024-11-19 14:15:29,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-19 14:15:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-11-19 14:15:29,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2024-11-19 14:15:29,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-19 14:15:29,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:29,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-19 14:15:29,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:29,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-19 14:15:29,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:29,249 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 49 transitions. [2024-11-19 14:15:29,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-19 14:15:29,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 24 states and 35 transitions. [2024-11-19 14:15:29,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-19 14:15:29,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-11-19 14:15:29,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 35 transitions. [2024-11-19 14:15:29,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:15:29,251 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 35 transitions. [2024-11-19 14:15:29,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 35 transitions. [2024-11-19 14:15:29,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2024-11-19 14:15:29,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 22 states have internal predecessors, (34), 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) [2024-11-19 14:15:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions. [2024-11-19 14:15:29,253 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 34 transitions. [2024-11-19 14:15:29,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:15:29,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:15:29,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:15:29,256 INFO L87 Difference]: Start difference. First operand 23 states and 34 transitions. Second operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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) [2024-11-19 14:15:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 14:15:29,296 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2024-11-19 14:15:29,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2024-11-19 14:15:29,297 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-11-19 14:15:29,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 27 transitions. [2024-11-19 14:15:29,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-19 14:15:29,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-19 14:15:29,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2024-11-19 14:15:29,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:15:29,298 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-11-19 14:15:29,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2024-11-19 14:15:29,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2024-11-19 14:15:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2024-11-19 14:15:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2024-11-19 14:15:29,299 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-11-19 14:15:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:15:29,300 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-11-19 14:15:29,300 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-19 14:15:29,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2024-11-19 14:15:29,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-19 14:15:29,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:15:29,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:15:29,301 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-19 14:15:29,301 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-19 14:15:29,301 INFO L745 eck$LassoCheckResult]: Stem: 338#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 339#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 340#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 342#L17-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 341#L17-2 assume !(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 336#L17-3 [2024-11-19 14:15:29,301 INFO L747 eck$LassoCheckResult]: Loop: 336#L17-3 main_~y~0#1 := main_~xtmp~0#1;main_~x~0#1 := main_~tmp~0#1; 337#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 333#L17-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 334#L17-2 assume !(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 336#L17-3 [2024-11-19 14:15:29,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:29,301 INFO L85 PathProgramCache]: Analyzing trace with hash 28699942, now seen corresponding path program 2 times [2024-11-19 14:15:29,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:29,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047593665] [2024-11-19 14:15:29,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:15:29,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:29,306 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:15:29,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:15:29,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:29,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:29,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1649714, now seen corresponding path program 1 times [2024-11-19 14:15:29,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:29,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392793198] [2024-11-19 14:15:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:15:29,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:29,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:29,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:29,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash 756678359, now seen corresponding path program 2 times [2024-11-19 14:15:29,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:29,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410765396] [2024-11-19 14:15:29,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:15:29,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:29,323 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:15:29,323 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:15:29,324 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:29,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:29,365 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:29,365 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:29,365 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:29,365 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:29,365 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:15:29,365 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,365 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:29,365 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:29,365 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration4_Loop [2024-11-19 14:15:29,365 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:29,366 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:29,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,372 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,412 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:29,412 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:15:29,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,414 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) [2024-11-19 14:15:29,415 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 [2024-11-19 14:15:29,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:29,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:29,427 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:29,428 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: [] [2024-11-19 14:15:29,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-19 14:15:29,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,465 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) [2024-11-19 14:15:29,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:29,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:29,474 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 [2024-11-19 14:15:29,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-19 14:15:29,492 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:29,492 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:15:29,495 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 [2024-11-19 14:15:29,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:29,505 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 [2024-11-19 14:15:29,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,506 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) [2024-11-19 14:15:29,507 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 [2024-11-19 14:15:29,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:29,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:29,525 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:29,525 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: [] [2024-11-19 14:15:29,535 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 [2024-11-19 14:15:29,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,537 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) [2024-11-19 14:15:29,538 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 [2024-11-19 14:15:29,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:29,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:29,558 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-19 14:15:29,558 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-19 14:15:29,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:29,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,570 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) [2024-11-19 14:15:29,570 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 [2024-11-19 14:15:29,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:29,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:29,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:29,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,594 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) [2024-11-19 14:15:29,598 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 [2024-11-19 14:15:29,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:15:29,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:29,779 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:15:29,784 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 [2024-11-19 14:15:29,784 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:29,784 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:29,784 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:29,784 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:29,784 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:15:29,784 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,785 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:29,785 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:29,785 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration4_Loop [2024-11-19 14:15:29,785 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:29,785 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:29,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:29,830 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:29,830 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:15:29,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,833 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) [2024-11-19 14:15:29,835 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 [2024-11-19 14:15:29,835 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 [2024-11-19 14:15:29,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:29,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:29,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:29,852 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:29,862 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 [2024-11-19 14:15:29,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,863 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) [2024-11-19 14:15:29,864 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 [2024-11-19 14:15:29,865 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 [2024-11-19 14:15:29,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:29,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:29,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:29,876 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:29,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-19 14:15:29,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,889 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) [2024-11-19 14:15:29,890 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 [2024-11-19 14:15:29,891 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 [2024-11-19 14:15:29,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:15:29,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:15:29,904 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:29,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-19 14:15:29,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,918 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) [2024-11-19 14:15:29,922 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 [2024-11-19 14:15:29,923 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 [2024-11-19 14:15:29,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,935 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:15:29,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:15:29,937 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:29,948 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 [2024-11-19 14:15:29,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,949 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) [2024-11-19 14:15:29,951 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 [2024-11-19 14:15:29,952 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 [2024-11-19 14:15:29,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:29,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:29,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:29,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:29,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:29,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:29,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:29,967 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:15:29,969 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-19 14:15:29,970 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-19 14:15:29,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:29,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:29,972 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) [2024-11-19 14:15:29,973 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 [2024-11-19 14:15:29,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:15:29,974 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:15:29,974 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:15:29,974 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 [] [2024-11-19 14:15:29,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:29,987 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:15:30,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:30,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:15:30,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:30,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:15:30,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:30,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:15:30,043 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 [2024-11-19 14:15:30,043 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-19 14:15:30,053 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 24 states and 33 transitions. Complement of second has 6 states. [2024-11-19 14:15:30,053 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 [2024-11-19 14:15:30,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-19 14:15:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-19 14:15:30,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-19 14:15:30,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:30,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-19 14:15:30,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:30,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2024-11-19 14:15:30,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:30,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 33 transitions. [2024-11-19 14:15:30,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-19 14:15:30,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 28 transitions. [2024-11-19 14:15:30,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-19 14:15:30,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-19 14:15:30,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2024-11-19 14:15:30,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-19 14:15:30,056 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 28 transitions. [2024-11-19 14:15:30,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2024-11-19 14:15:30,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2024-11-19 14:15:30,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 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) [2024-11-19 14:15:30,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2024-11-19 14:15:30,057 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-11-19 14:15:30,057 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-11-19 14:15:30,057 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-19 14:15:30,057 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2024-11-19 14:15:30,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-19 14:15:30,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-19 14:15:30,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-19 14:15:30,058 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-11-19 14:15:30,058 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-19 14:15:30,058 INFO L745 eck$LassoCheckResult]: Stem: 425#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 426#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 429#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 434#L17-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 431#L17-2 assume !(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 430#L17-3 main_~y~0#1 := main_~xtmp~0#1;main_~x~0#1 := main_~tmp~0#1; 423#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 420#L17-2 [2024-11-19 14:15:30,058 INFO L747 eck$LassoCheckResult]: Loop: 420#L17-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 420#L17-2 [2024-11-19 14:15:30,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:30,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 3 times [2024-11-19 14:15:30,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:30,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971780984] [2024-11-19 14:15:30,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:15:30,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:30,063 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 14:15:30,063 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:15:30,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:30,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:30,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:30,067 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2024-11-19 14:15:30,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:30,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107170636] [2024-11-19 14:15:30,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:15:30,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:30,070 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:15:30,070 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:15:30,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:30,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:30,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash 301503643, now seen corresponding path program 4 times [2024-11-19 14:15:30,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:15:30,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578077766] [2024-11-19 14:15:30,072 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 14:15:30,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:15:30,076 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 14:15:30,076 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 14:15:30,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 14:15:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 14:15:30,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 14:15:30,099 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:30,100 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:30,100 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:30,100 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:30,100 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-19 14:15:30,100 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:30,100 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:30,100 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:30,100 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration5_Loop [2024-11-19 14:15:30,100 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:30,100 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:30,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:30,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:30,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:30,131 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:30,131 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-19 14:15:30,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:30,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:30,134 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) [2024-11-19 14:15:30,135 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 [2024-11-19 14:15:30,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-19 14:15:30,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:30,160 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 [2024-11-19 14:15:30,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:30,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:30,162 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) [2024-11-19 14:15:30,163 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 [2024-11-19 14:15:30,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-19 14:15:30,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-19 14:15:30,241 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-19 14:15:30,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:30,246 INFO L204 LassoAnalysis]: Preferences: [2024-11-19 14:15:30,246 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-19 14:15:30,246 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-19 14:15:30,246 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-19 14:15:30,247 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-19 14:15:30,247 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:30,247 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-19 14:15:30,247 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-19 14:15:30,247 INFO L132 ssoRankerPreferences]: Filename of dumped script: GCD4.c_Iteration5_Loop [2024-11-19 14:15:30,247 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-19 14:15:30,247 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-19 14:15:30,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:30,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:30,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-19 14:15:30,279 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-19 14:15:30,279 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-19 14:15:30,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:30,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:30,281 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) [2024-11-19 14:15:30,282 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 [2024-11-19 14:15:30,287 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 [2024-11-19 14:15:30,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:30,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:30,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:30,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:30,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-19 14:15:30,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-19 14:15:30,302 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-19 14:15:30,312 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 [2024-11-19 14:15:30,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:30,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:30,313 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:15:30,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-19 14:15:30,315 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 [2024-11-19 14:15:30,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-19 14:15:30,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-19 14:15:30,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-19 14:15:30,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-19 14:15:30,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-19 14:15:30,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-19 14:15:30,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-19 14:15:30,328 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-19 14:15:30,330 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-19 14:15:30,330 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-19 14:15:30,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-19 14:15:30,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:15:30,331 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-19 14:15:30,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-19 14:15:30,341 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-19 14:15:30,341 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-19 14:15:30,341 INFO L474 LassoAnalysis]: Proved termination. [2024-11-19 14:15:30,342 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 [] [2024-11-19 14:15:30,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-19 14:15:30,352 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-19 14:15:30,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:30,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:15:30,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:30,376 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:15:30,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:15:30,377 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-19 14:15:30,377 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-11-19 14:15:30,382 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 17 states and 24 transitions. Complement of second has 5 states. [2024-11-19 14:15:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:15:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-11-19 14:15:30,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-19 14:15:30,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2024-11-19 14:15:30,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:30,383 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 14:15:30,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:30,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:15:30,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:30,405 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:15:30,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:30,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:15:30,405 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-19 14:15:30,406 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-11-19 14:15:30,411 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 17 states and 24 transitions. Complement of second has 5 states. [2024-11-19 14:15:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:15:30,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-11-19 14:15:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-19 14:15:30,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2024-11-19 14:15:30,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:30,412 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-19 14:15:30,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:15:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:30,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 14:15:30,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:15:30,431 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:15:30,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:15:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:15:30,432 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-19 14:15:30,432 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-11-19 14:15:30,438 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 19 states and 26 transitions. Complement of second has 4 states. [2024-11-19 14:15:30,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-19 14:15:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2024-11-19 14:15:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-19 14:15:30,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2024-11-19 14:15:30,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:30,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2024-11-19 14:15:30,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:30,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-19 14:15:30,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-19 14:15:30,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2024-11-19 14:15:30,439 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 14:15:30,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2024-11-19 14:15:30,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-19 14:15:30,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-19 14:15:30,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-19 14:15:30,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-19 14:15:30,440 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:15:30,440 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:15:30,440 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 14:15:30,440 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-19 14:15:30,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-19 14:15:30,440 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-19 14:15:30,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-19 14:15:30,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 02:15:30 BoogieIcfgContainer [2024-11-19 14:15:30,445 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-19 14:15:30,446 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:15:30,446 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:15:30,446 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:15:30,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:26" (3/4) ... [2024-11-19 14:15:30,448 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 14:15:30,448 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:15:30,449 INFO L158 Benchmark]: Toolchain (without parser) took 4147.09ms. Allocated memory is still 239.1MB. Free memory was 169.9MB in the beginning and 149.5MB in the end (delta: 20.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-19 14:15:30,449 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:15:30,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.62ms. Allocated memory is still 239.1MB. Free memory was 169.9MB in the beginning and 158.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 14:15:30,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.79ms. Allocated memory is still 239.1MB. Free memory was 158.6MB in the beginning and 157.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:15:30,449 INFO L158 Benchmark]: Boogie Preprocessor took 21.77ms. Allocated memory is still 239.1MB. Free memory was 157.3MB in the beginning and 155.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:15:30,449 INFO L158 Benchmark]: RCFGBuilder took 185.39ms. Allocated memory is still 239.1MB. Free memory was 155.6MB in the beginning and 146.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-19 14:15:30,450 INFO L158 Benchmark]: BuchiAutomizer took 3738.99ms. Allocated memory is still 239.1MB. Free memory was 146.1MB in the beginning and 149.5MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:15:30,450 INFO L158 Benchmark]: Witness Printer took 2.68ms. Allocated memory is still 239.1MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:15:30,450 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.62ms. Allocated memory is still 239.1MB. Free memory was 169.9MB in the beginning and 158.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.79ms. Allocated memory is still 239.1MB. Free memory was 158.6MB in the beginning and 157.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.77ms. Allocated memory is still 239.1MB. Free memory was 157.3MB in the beginning and 155.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 185.39ms. Allocated memory is still 239.1MB. Free memory was 155.6MB in the beginning and 146.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3738.99ms. Allocated memory is still 239.1MB. Free memory was 146.1MB in the beginning and 149.5MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.68ms. Allocated memory is still 239.1MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 6 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One deterministic module has affine ranking function xtmp and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 33 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax180 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf93 smp100 dnf100 smp100 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-19 14:15:30,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:30,671 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 [2024-11-19 14:15:30,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-19 14:15:31,075 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