./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:56:58,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:56:58,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-13 16:56:58,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:56:58,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:56:58,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:56:58,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:56:58,317 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:56:58,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:56:58,318 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:56:58,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:56:58,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:56:58,320 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:56:58,321 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 16:56:58,323 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 16:56:58,323 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 16:56:58,323 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 16:56:58,324 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 16:56:58,324 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 16:56:58,324 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:56:58,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 16:56:58,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:56:58,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:56:58,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 16:56:58,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 16:56:58,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 16:56:58,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:56:58,328 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:56:58,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:56:58,328 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 16:56:58,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:56:58,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:56:58,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:56:58,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:56:58,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:56:58,330 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 16:56:58,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2024-10-13 16:56:58,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:56:58,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:56:58,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:56:58,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:56:58,636 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:56:58,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-10-13 16:57:00,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:57:00,313 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:57:00,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-10-13 16:57:00,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effff9f2a/d256693e0c33457e916a16da5a370d79/FLAG2be7e9525 [2024-10-13 16:57:00,694 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/effff9f2a/d256693e0c33457e916a16da5a370d79 [2024-10-13 16:57:00,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:57:00,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:57:00,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:57:00,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:57:00,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:57:00,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4825df97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00, skipping insertion in model container [2024-10-13 16:57:00,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,720 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:57:00,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:57:00,911 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:57:00,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:57:00,941 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:57:00,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00 WrapperNode [2024-10-13 16:57:00,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:57:00,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:57:00,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:57:00,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:57:00,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,971 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-10-13 16:57:00,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:57:00,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:57:00,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:57:00,972 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:57:00,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,987 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-13 16:57:00,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:00,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:01,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:01,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:01,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:57:01,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:57:01,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:57:01,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:57:01,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (1/1) ... [2024-10-13 16:57:01,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:01,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:01,038 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) [2024-10-13 16:57:01,040 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 [2024-10-13 16:57:01,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:57:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:57:01,148 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:57:01,150 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:57:01,214 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-13 16:57:01,214 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:57:01,225 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:57:01,226 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 16:57:01,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:57:01 BoogieIcfgContainer [2024-10-13 16:57:01,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:57:01,227 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 16:57:01,227 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 16:57:01,231 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 16:57:01,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:57:01,232 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 04:57:00" (1/3) ... [2024-10-13 16:57:01,232 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dd95c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:57:01, skipping insertion in model container [2024-10-13 16:57:01,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:57:01,232 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:57:00" (2/3) ... [2024-10-13 16:57:01,233 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dd95c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 04:57:01, skipping insertion in model container [2024-10-13 16:57:01,233 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 16:57:01,233 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:57:01" (3/3) ... [2024-10-13 16:57:01,234 INFO L332 chiAutomizerObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-10-13 16:57:01,283 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 16:57:01,283 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 16:57:01,283 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 16:57:01,283 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 16:57:01,284 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 16:57:01,284 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 16:57:01,284 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 16:57:01,284 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 16:57:01,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:01,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:57:01,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:01,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:01,321 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 16:57:01,321 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 16:57:01,321 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 16:57:01,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:01,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:57:01,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:01,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:01,323 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 16:57:01,323 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 16:57:01,330 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 5#L21true assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 8#L22-2true [2024-10-13 16:57:01,331 INFO L747 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 3#L24-2true assume !(main_~y~0#1 < main_~z~0#1); 9#L24-3true main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 8#L22-2true [2024-10-13 16:57:01,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:01,344 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-10-13 16:57:01,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:01,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072975695] [2024-10-13 16:57:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:01,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:01,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:01,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:01,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:01,477 INFO L85 PathProgramCache]: Analyzing trace with hash 43923, now seen corresponding path program 1 times [2024-10-13 16:57:01,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:01,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509204266] [2024-10-13 16:57:01,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:01,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:01,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:01,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:01,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:01,511 INFO L85 PathProgramCache]: Analyzing trace with hash 889513810, now seen corresponding path program 1 times [2024-10-13 16:57:01,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:01,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537164699] [2024-10-13 16:57:01,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:01,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:01,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:01,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:01,662 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:01,664 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:01,664 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:01,665 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:01,665 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:57:01,665 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:01,665 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:01,665 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:01,666 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2024-10-13 16:57:01,666 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:01,666 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:01,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:01,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:01,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:01,802 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:01,803 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:57:01,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:01,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:01,809 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) [2024-10-13 16:57:01,811 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 [2024-10-13 16:57:01,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:01,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:01,840 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:01,841 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:01,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-13 16:57:01,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:01,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:01,855 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) [2024-10-13 16:57:01,856 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 [2024-10-13 16:57:01,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:01,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:01,878 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:01,879 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:01,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-13 16:57:01,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:01,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:01,892 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) [2024-10-13 16:57:01,893 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 [2024-10-13 16:57:01,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:01,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:01,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:01,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:01,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:01,931 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) [2024-10-13 16:57:01,933 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 [2024-10-13 16:57:01,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:57:01,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:02,143 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:57:02,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-13 16:57:02,149 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:02,149 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:02,149 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:02,150 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:02,150 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:57:02,150 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:02,150 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:02,150 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:02,150 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2024-10-13 16:57:02,151 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:02,151 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:02,153 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:02,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:02,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:02,245 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:02,249 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:57:02,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:02,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:02,253 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) [2024-10-13 16:57:02,255 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 [2024-10-13 16:57:02,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:02,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:02,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:02,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:02,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:02,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:02,279 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:02,290 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:02,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:02,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:02,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:02,308 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) [2024-10-13 16:57:02,310 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 [2024-10-13 16:57:02,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:02,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:02,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:02,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:02,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:02,327 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:02,327 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:02,331 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:02,347 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 [2024-10-13 16:57:02,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:02,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:02,350 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) [2024-10-13 16:57:02,351 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 [2024-10-13 16:57:02,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:02,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:02,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:02,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:02,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:02,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:02,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:57:02,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:02,370 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:02,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:02,386 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-10-13 16:57:02,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:02,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:02,389 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) [2024-10-13 16:57:02,390 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 [2024-10-13 16:57:02,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:02,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:02,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:02,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:02,403 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-13 16:57:02,410 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-10-13 16:57:02,410 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-10-13 16:57:02,420 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:02,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-13 16:57:02,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:02,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:02,439 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) [2024-10-13 16:57:02,441 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 [2024-10-13 16:57:02,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:02,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:02,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:02,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:02,457 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-13 16:57:02,464 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-10-13 16:57:02,464 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-10-13 16:57:02,471 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:02,486 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 [2024-10-13 16:57:02,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:02,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:02,490 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) [2024-10-13 16:57:02,491 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 [2024-10-13 16:57:02,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:02,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:02,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:02,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:02,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:02,508 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-13 16:57:02,510 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-10-13 16:57:02,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:02,515 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:57:02,526 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-10-13 16:57:02,527 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-13 16:57:02,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:02,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:02,531 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) [2024-10-13 16:57:02,533 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 [2024-10-13 16:57:02,535 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:57:02,536 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:57:02,536 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:57:02,536 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-13 16:57:02,563 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 [2024-10-13 16:57:02,569 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:57:02,580 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-13 16:57:02,582 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-13 16:57:02,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:02,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:02,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:02,629 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:57:02,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:02,860 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-13 16:57:02,863 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:02,910 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 41 transitions. Complement of second has 6 states. [2024-10-13 16:57:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:57:02,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-10-13 16:57:02,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 3 letters. [2024-10-13 16:57:02,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:02,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-13 16:57:02,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:02,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 6 letters. [2024-10-13 16:57:02,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:02,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 41 transitions. [2024-10-13 16:57:02,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:57:02,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 11 states and 15 transitions. [2024-10-13 16:57:02,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-13 16:57:02,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-13 16:57:02,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2024-10-13 16:57:02,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:57:02,932 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-10-13 16:57:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2024-10-13 16:57:02,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-13 16:57:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2024-10-13 16:57:02,950 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-10-13 16:57:02,951 INFO L425 stractBuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2024-10-13 16:57:02,951 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 16:57:02,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2024-10-13 16:57:02,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:57:02,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:02,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:02,952 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-13 16:57:02,952 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-13 16:57:02,952 INFO L745 eck$LassoCheckResult]: Stem: 89#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 90#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~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;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 87#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 88#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 83#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 84#L24-2 [2024-10-13 16:57:02,952 INFO L747 eck$LassoCheckResult]: Loop: 84#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 84#L24-2 [2024-10-13 16:57:02,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:02,953 INFO L85 PathProgramCache]: Analyzing trace with hash 28693995, now seen corresponding path program 1 times [2024-10-13 16:57:02,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:02,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543374605] [2024-10-13 16:57:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:02,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:02,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:02,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:02,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:02,972 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2024-10-13 16:57:02,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:02,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697689460] [2024-10-13 16:57:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:02,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:02,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:02,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:02,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:02,981 INFO L85 PathProgramCache]: Analyzing trace with hash 889513868, now seen corresponding path program 2 times [2024-10-13 16:57:02,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:02,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573390647] [2024-10-13 16:57:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:02,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:02,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:03,019 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:03,020 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:03,020 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:03,020 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:03,020 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:57:03,020 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,020 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:03,020 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:03,020 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2024-10-13 16:57:03,021 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:03,021 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:03,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,085 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:03,085 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:57:03,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,088 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) [2024-10-13 16:57:03,089 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 [2024-10-13 16:57:03,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:03,091 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:03,114 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:03,114 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:03,130 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 [2024-10-13 16:57:03,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,133 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) [2024-10-13 16:57:03,135 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 [2024-10-13 16:57:03,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:03,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:03,159 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:03,159 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:03,173 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 [2024-10-13 16:57:03,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,175 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) [2024-10-13 16:57:03,176 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 [2024-10-13 16:57:03,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:03,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:03,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-13 16:57:03,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,208 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) [2024-10-13 16:57:03,209 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 [2024-10-13 16:57:03,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:57:03,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:03,248 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:03,248 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: [{ULTIMATE.start_main_~x~0#1=-3}, {ULTIMATE.start_main_~x~0#1=4}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2024-10-13 16:57:03,264 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 [2024-10-13 16:57:03,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,268 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) [2024-10-13 16:57:03,270 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 [2024-10-13 16:57:03,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:03,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:03,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:03,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,307 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) [2024-10-13 16:57:03,308 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 [2024-10-13 16:57:03,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:57:03,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:03,445 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:57:03,450 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 [2024-10-13 16:57:03,450 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:03,450 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:03,450 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:03,451 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:03,451 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:57:03,451 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,451 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:03,451 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:03,451 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2024-10-13 16:57:03,451 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:03,451 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:03,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,461 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,512 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:03,512 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:57:03,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,515 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:57:03,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-13 16:57:03,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:03,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:03,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:03,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:03,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:03,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:03,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:03,538 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:03,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-13 16:57:03,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,555 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) [2024-10-13 16:57:03,557 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 [2024-10-13 16:57:03,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:03,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:03,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:03,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:03,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:03,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:03,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:57:03,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:03,582 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:03,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:03,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,598 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) [2024-10-13 16:57:03,600 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 [2024-10-13 16:57:03,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:03,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:03,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:03,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:03,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:03,615 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:03,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:03,619 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:03,635 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 [2024-10-13 16:57:03,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,637 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) [2024-10-13 16:57:03,641 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 [2024-10-13 16:57:03,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:03,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:03,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:03,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:03,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:03,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:03,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:57:03,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:03,657 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:57:03,659 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-13 16:57:03,660 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 16:57:03,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,661 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) [2024-10-13 16:57:03,662 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 [2024-10-13 16:57:03,662 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:57:03,662 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:57:03,662 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:57:03,662 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2024-10-13 16:57:03,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-13 16:57:03,674 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:57:03,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:03,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:03,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:03,719 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:57:03,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:03,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:03,720 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 [2024-10-13 16:57:03,720 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 6 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:03,735 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 6. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 29 transitions. Complement of second has 6 states. [2024-10-13 16:57:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:57:03,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:03,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-10-13 16:57:03,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 1 letters. [2024-10-13 16:57:03,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:03,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 1 letters. [2024-10-13 16:57:03,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:03,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2024-10-13 16:57:03,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:03,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 29 transitions. [2024-10-13 16:57:03,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:57:03,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 20 transitions. [2024-10-13 16:57:03,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-13 16:57:03,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-13 16:57:03,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2024-10-13 16:57:03,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:57:03,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-10-13 16:57:03,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2024-10-13 16:57:03,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-10-13 16:57:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2024-10-13 16:57:03,744 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2024-10-13 16:57:03,744 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2024-10-13 16:57:03,744 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 16:57:03,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2024-10-13 16:57:03,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:57:03,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:03,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:03,747 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-13 16:57:03,748 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 16:57:03,748 INFO L745 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 156#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 153#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 154#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 160#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 162#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 151#L24-3 [2024-10-13 16:57:03,748 INFO L747 eck$LassoCheckResult]: Loop: 151#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 157#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 150#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 151#L24-3 [2024-10-13 16:57:03,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:03,749 INFO L85 PathProgramCache]: Analyzing trace with hash 889513866, now seen corresponding path program 1 times [2024-10-13 16:57:03,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:03,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117759241] [2024-10-13 16:57:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:03,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:03,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:03,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:03,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash 56193, now seen corresponding path program 2 times [2024-10-13 16:57:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:03,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034302396] [2024-10-13 16:57:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:03,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:03,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:03,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:03,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash -440607912, now seen corresponding path program 1 times [2024-10-13 16:57:03,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:03,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956994939] [2024-10-13 16:57:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:03,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:03,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:03,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:03,820 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:03,820 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:03,820 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:03,820 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:03,820 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:57:03,821 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,821 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:03,821 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:03,821 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2024-10-13 16:57:03,821 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:03,821 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:03,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:03,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-13 16:57:03,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-13 16:57:03,955 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:03,955 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:57:03,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,957 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) [2024-10-13 16:57:03,961 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 [2024-10-13 16:57:03,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:03,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:03,982 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:03,982 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:03,993 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 [2024-10-13 16:57:03,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:03,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:03,994 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) [2024-10-13 16:57:03,995 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 [2024-10-13 16:57:03,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:03,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:04,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-13 16:57:04,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,026 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) [2024-10-13 16:57:04,029 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 [2024-10-13 16:57:04,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:57:04,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:04,245 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:57:04,249 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 [2024-10-13 16:57:04,250 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:04,250 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:04,250 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:04,250 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:04,250 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:57:04,250 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,250 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:04,250 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:04,250 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2024-10-13 16:57:04,250 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:04,250 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:04,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:04,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:04,264 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:04,305 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:04,305 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:57:04,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,307 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) [2024-10-13 16:57:04,309 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 [2024-10-13 16:57:04,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:04,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:04,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:04,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:04,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:04,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:04,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:04,329 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:04,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-13 16:57:04,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,345 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) [2024-10-13 16:57:04,346 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 [2024-10-13 16:57:04,348 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 [2024-10-13 16:57:04,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:04,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:04,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:04,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:04,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:04,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:57:04,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:04,366 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:04,380 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 [2024-10-13 16:57:04,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,382 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) [2024-10-13 16:57:04,383 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 [2024-10-13 16:57:04,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:04,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:04,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:04,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:04,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:04,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:04,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:04,399 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:04,412 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 [2024-10-13 16:57:04,413 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-10-13 16:57:04,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,415 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) [2024-10-13 16:57:04,416 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 [2024-10-13 16:57:04,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:04,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:04,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:04,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:04,428 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-13 16:57:04,434 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-10-13 16:57:04,434 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-10-13 16:57:04,439 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:04,453 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 [2024-10-13 16:57:04,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,457 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) [2024-10-13 16:57:04,458 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 [2024-10-13 16:57:04,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:04,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:04,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:04,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:04,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:04,473 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-13 16:57:04,475 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-10-13 16:57:04,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:04,479 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:57:04,489 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-10-13 16:57:04,489 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-13 16:57:04,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,491 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) [2024-10-13 16:57:04,492 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 [2024-10-13 16:57:04,493 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:57:04,493 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:57:04,494 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:57:04,494 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-13 16:57:04,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-13 16:57:04,510 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:57:04,511 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-13 16:57:04,511 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-13 16:57:04,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:04,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:04,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:04,545 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:57:04,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:04,716 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-13 16:57:04,716 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 9 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) [2024-10-13 16:57:04,742 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 9. 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 31 states and 46 transitions. Complement of second has 8 states. [2024-10-13 16:57:04,743 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 [2024-10-13 16:57:04,744 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) [2024-10-13 16:57:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2024-10-13 16:57:04,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 6 letters. Loop has 3 letters. [2024-10-13 16:57:04,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:04,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-13 16:57:04,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:04,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 6 letters. Loop has 6 letters. [2024-10-13 16:57:04,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:04,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 46 transitions. [2024-10-13 16:57:04,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:57:04,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 23 states and 34 transitions. [2024-10-13 16:57:04,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-13 16:57:04,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-13 16:57:04,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2024-10-13 16:57:04,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:57:04,748 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 34 transitions. [2024-10-13 16:57:04,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2024-10-13 16:57:04,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2024-10-13 16:57:04,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2024-10-13 16:57:04,751 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2024-10-13 16:57:04,751 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2024-10-13 16:57:04,751 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 16:57:04,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2024-10-13 16:57:04,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-13 16:57:04,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:04,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:04,754 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-13 16:57:04,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-10-13 16:57:04,755 INFO L745 eck$LassoCheckResult]: Stem: 255#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 256#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~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;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 253#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 254#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 266#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 264#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 261#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 259#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 260#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 258#L24-2 [2024-10-13 16:57:04,755 INFO L747 eck$LassoCheckResult]: Loop: 258#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 258#L24-2 [2024-10-13 16:57:04,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:04,755 INFO L85 PathProgramCache]: Analyzing trace with hash -440607910, now seen corresponding path program 2 times [2024-10-13 16:57:04,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:04,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621759900] [2024-10-13 16:57:04,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:04,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:04,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:04,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:04,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:04,786 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 2 times [2024-10-13 16:57:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:04,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395518958] [2024-10-13 16:57:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:04,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:04,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:04,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:04,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:04,797 INFO L85 PathProgramCache]: Analyzing trace with hash -773943299, now seen corresponding path program 3 times [2024-10-13 16:57:04,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:04,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389333923] [2024-10-13 16:57:04,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:04,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:04,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:04,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:04,857 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:04,857 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:04,857 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:04,857 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:04,858 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:57:04,858 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,858 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:04,858 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:04,858 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2024-10-13 16:57:04,858 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:04,858 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:04,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:04,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:04,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:04,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:04,909 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:04,909 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:57:04,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,911 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) [2024-10-13 16:57:04,912 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 [2024-10-13 16:57:04,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:04,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:04,944 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 [2024-10-13 16:57:04,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:04,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:04,946 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) [2024-10-13 16:57:04,948 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 [2024-10-13 16:57:04,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:57:04,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:05,091 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:57:05,095 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 [2024-10-13 16:57:05,096 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:05,096 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:05,096 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:05,096 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:05,096 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:57:05,096 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:05,096 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:05,096 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:05,096 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2024-10-13 16:57:05,096 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:05,096 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:05,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:05,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:05,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:05,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:05,168 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:05,169 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:57:05,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:05,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:05,171 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) [2024-10-13 16:57:05,172 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 [2024-10-13 16:57:05,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:05,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:05,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:05,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:05,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:05,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:05,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:57:05,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:05,192 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:57:05,196 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 16:57:05,196 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 16:57:05,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:05,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:05,198 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) [2024-10-13 16:57:05,206 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 [2024-10-13 16:57:05,206 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:57:05,206 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:57:05,206 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:57:05,206 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~z~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-13 16:57:05,221 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 [2024-10-13 16:57:05,222 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:57:05,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:05,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:05,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:05,269 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:57:05,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:05,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:05,271 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 [2024-10-13 16:57:05,271 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:05,284 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 22 states and 31 transitions. Complement of second has 5 states. [2024-10-13 16:57:05,287 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 [2024-10-13 16:57:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-13 16:57:05,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2024-10-13 16:57:05,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:05,288 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-13 16:57:05,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:05,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:05,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:05,332 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:57:05,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:05,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:05,333 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 [2024-10-13 16:57:05,333 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:05,346 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 22 states and 31 transitions. Complement of second has 5 states. [2024-10-13 16:57:05,349 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 [2024-10-13 16:57:05,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-13 16:57:05,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 1 letters. [2024-10-13 16:57:05,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:05,350 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-13 16:57:05,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:05,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:05,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:05,392 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:57:05,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:05,393 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 [2024-10-13 16:57:05,393 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:05,408 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 30 states and 46 transitions. Complement of second has 5 states. [2024-10-13 16:57:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-13 16:57:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2024-10-13 16:57:05,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 1 letters. [2024-10-13 16:57:05,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:05,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 1 letters. [2024-10-13 16:57:05,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:05,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-13 16:57:05,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:05,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 46 transitions. [2024-10-13 16:57:05,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 16:57:05,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 23 states and 32 transitions. [2024-10-13 16:57:05,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-13 16:57:05,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-10-13 16:57:05,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2024-10-13 16:57:05,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:57:05,413 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2024-10-13 16:57:05,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2024-10-13 16:57:05,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2024-10-13 16:57:05,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:05,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2024-10-13 16:57:05,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2024-10-13 16:57:05,415 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2024-10-13 16:57:05,415 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-13 16:57:05,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2024-10-13 16:57:05,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-13 16:57:05,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:05,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:05,420 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-13 16:57:05,420 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-13 16:57:05,420 INFO L745 eck$LassoCheckResult]: Stem: 465#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 466#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 463#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 464#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 470#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 477#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 476#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 475#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 472#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 467#L24-3 [2024-10-13 16:57:05,422 INFO L747 eck$LassoCheckResult]: Loop: 467#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 468#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 473#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 467#L24-3 [2024-10-13 16:57:05,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:05,423 INFO L85 PathProgramCache]: Analyzing trace with hash -442288422, now seen corresponding path program 4 times [2024-10-13 16:57:05,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:05,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932107161] [2024-10-13 16:57:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:05,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:05,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:05,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:05,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:05,446 INFO L85 PathProgramCache]: Analyzing trace with hash 56193, now seen corresponding path program 3 times [2024-10-13 16:57:05,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:05,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422201550] [2024-10-13 16:57:05,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:05,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:05,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:05,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:05,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:05,458 INFO L85 PathProgramCache]: Analyzing trace with hash 745310728, now seen corresponding path program 5 times [2024-10-13 16:57:05,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:05,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294967499] [2024-10-13 16:57:05,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:05,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:05,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:57:05,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294967499] [2024-10-13 16:57:05,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294967499] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:57:05,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077988376] [2024-10-13 16:57:05,593 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 16:57:05,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:57:05,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:05,595 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:57:05,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-10-13 16:57:05,628 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-10-13 16:57:05,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:57:05,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 16:57:05,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:05,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:05,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:57:05,746 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:05,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077988376] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:57:05,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:57:05,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-10-13 16:57:05,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914924093] [2024-10-13 16:57:05,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:57:05,781 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:05,781 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:05,782 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:05,782 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:05,782 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:57:05,782 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:05,782 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:05,782 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:05,782 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2024-10-13 16:57:05,782 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:05,782 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:05,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:05,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:05,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:05,828 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:05,829 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:57:05,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:05,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:05,830 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) [2024-10-13 16:57:05,831 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 [2024-10-13 16:57:05,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:05,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:05,849 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:05,849 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:05,859 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 [2024-10-13 16:57:05,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:05,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:05,868 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) [2024-10-13 16:57:05,870 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 [2024-10-13 16:57:05,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:05,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:05,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-13 16:57:05,892 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:05,892 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:05,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-10-13 16:57:05,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-10-13 16:57:05,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:05,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:05,907 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) [2024-10-13 16:57:05,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-13 16:57:05,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:05,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:05,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-13 16:57:05,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:05,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:05,933 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:57:05,935 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 [2024-10-13 16:57:05,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:57:05,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:06,157 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:57:06,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:06,162 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:06,163 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:06,163 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:06,163 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:06,163 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:57:06,163 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:06,163 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:06,163 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:06,163 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2024-10-13 16:57:06,163 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:06,163 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:06,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:06,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:06,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:06,225 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:06,225 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:57:06,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:06,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:06,227 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) [2024-10-13 16:57:06,229 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 [2024-10-13 16:57:06,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:06,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:06,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:06,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:06,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:06,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:06,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:06,247 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:06,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-10-13 16:57:06,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:06,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:06,265 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) [2024-10-13 16:57:06,267 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 [2024-10-13 16:57:06,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:06,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:06,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:06,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:06,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:06,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:06,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:57:06,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:06,286 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:06,300 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 [2024-10-13 16:57:06,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:06,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:06,302 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) [2024-10-13 16:57:06,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:06,307 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 [2024-10-13 16:57:06,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:06,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:06,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:06,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:06,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:06,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:06,323 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:06,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:06,339 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-10-13 16:57:06,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:06,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:06,341 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) [2024-10-13 16:57:06,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:06,348 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 [2024-10-13 16:57:06,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:06,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:06,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:06,358 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-13 16:57:06,361 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2024-10-13 16:57:06,361 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2024-10-13 16:57:06,365 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:06,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:06,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:06,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:06,383 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) [2024-10-13 16:57:06,386 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 [2024-10-13 16:57:06,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:06,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:06,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:06,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:06,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:06,400 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-10-13 16:57:06,401 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-10-13 16:57:06,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:06,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:57:06,414 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-10-13 16:57:06,415 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-10-13 16:57:06,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:06,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:06,417 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 16:57:06,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-13 16:57:06,419 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:57:06,419 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:57:06,419 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:57:06,419 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-10-13 16:57:06,434 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 [2024-10-13 16:57:06,435 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:57:06,436 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-13 16:57:06,437 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-10-13 16:57:06,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:06,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:06,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:06,485 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:57:06,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:06,602 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-13 16:57:06,603 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:06,628 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 38 transitions. Complement of second has 7 states. [2024-10-13 16:57:06,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-13 16:57:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-10-13 16:57:06,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-13 16:57:06,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:06,631 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-13 16:57:06,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:06,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:06,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:06,671 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:57:06,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:06,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:06,800 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-13 16:57:06,800 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:06,830 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 33 transitions. Complement of second has 7 states. [2024-10-13 16:57:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-13 16:57:06,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-13 16:57:06,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-13 16:57:06,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:06,832 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-13 16:57:06,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:06,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:06,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:06,877 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:57:06,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:07,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:07,000 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 3 loop predicates [2024-10-13 16:57:07,000 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:07,026 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 44 transitions. Complement of second has 6 states. [2024-10-13 16:57:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-13 16:57:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-13 16:57:07,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2024-10-13 16:57:07,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:07,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 3 letters. [2024-10-13 16:57:07,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:07,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 6 letters. [2024-10-13 16:57:07,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:07,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2024-10-13 16:57:07,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-13 16:57:07,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 25 states and 35 transitions. [2024-10-13 16:57:07,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-13 16:57:07,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-13 16:57:07,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 35 transitions. [2024-10-13 16:57:07,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:57:07,033 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 35 transitions. [2024-10-13 16:57:07,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 35 transitions. [2024-10-13 16:57:07,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2024-10-13 16:57:07,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:07,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2024-10-13 16:57:07,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 28 transitions. [2024-10-13 16:57:07,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:57:07,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 16:57:07,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-13 16:57:07,042 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 10 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) [2024-10-13 16:57:07,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 16:57:07,132 INFO L93 Difference]: Finished difference Result 22 states and 29 transitions. [2024-10-13 16:57:07,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2024-10-13 16:57:07,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-13 16:57:07,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 29 transitions. [2024-10-13 16:57:07,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-13 16:57:07,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-13 16:57:07,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2024-10-13 16:57:07,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-13 16:57:07,134 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 29 transitions. [2024-10-13 16:57:07,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2024-10-13 16:57:07,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2024-10-13 16:57:07,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:57:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2024-10-13 16:57:07,135 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-10-13 16:57:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 16:57:07,136 INFO L425 stractBuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-10-13 16:57:07,136 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-13 16:57:07,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2024-10-13 16:57:07,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-13 16:57:07,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 16:57:07,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 16:57:07,137 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-13 16:57:07,137 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-13 16:57:07,137 INFO L745 eck$LassoCheckResult]: Stem: 845#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 846#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~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;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 843#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 844#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 851#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 849#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 850#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 853#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 855#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 847#L24-3 [2024-10-13 16:57:07,137 INFO L747 eck$LassoCheckResult]: Loop: 847#L24-3 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 848#L22-2 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 856#L24-2 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 855#L24-2 assume !(main_~y~0#1 < main_~z~0#1); 847#L24-3 [2024-10-13 16:57:07,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:07,138 INFO L85 PathProgramCache]: Analyzing trace with hash -442288422, now seen corresponding path program 6 times [2024-10-13 16:57:07,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:07,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242314969] [2024-10-13 16:57:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:07,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:07,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:07,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:07,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:07,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1742066, now seen corresponding path program 1 times [2024-10-13 16:57:07,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:07,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533843142] [2024-10-13 16:57:07,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:07,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:07,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:07,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:07,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:07,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1629796171, now seen corresponding path program 7 times [2024-10-13 16:57:07,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:57:07,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904312456] [2024-10-13 16:57:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:57:07,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:57:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:07,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:57:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:57:07,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:57:07,213 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:07,214 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:07,214 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:07,214 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:07,214 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-13 16:57:07,214 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,214 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:07,214 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:07,214 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2024-10-13 16:57:07,214 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:07,214 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:07,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:07,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:07,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:07,313 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:07,313 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-13 16:57:07,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:07,317 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2024-10-13 16:57:07,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-13 16:57:07,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:07,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:07,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-13 16:57:07,347 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:07,347 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:07,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:07,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:07,364 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2024-10-13 16:57:07,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-13 16:57:07,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:07,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:07,388 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-13 16:57:07,388 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-13 16:57:07,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:07,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:07,405 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2024-10-13 16:57:07,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-13 16:57:07,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-13 16:57:07,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:07,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:07,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:07,449 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2024-10-13 16:57:07,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-13 16:57:07,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-13 16:57:07,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-13 16:57:07,762 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-13 16:57:07,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:07,767 INFO L204 LassoAnalysis]: Preferences: [2024-10-13 16:57:07,767 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-13 16:57:07,767 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-13 16:57:07,767 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-13 16:57:07,767 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-13 16:57:07,767 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,768 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-13 16:57:07,768 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-13 16:57:07,768 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2024-10-13 16:57:07,768 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-13 16:57:07,768 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-13 16:57:07,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:07,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:07,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-13 16:57:07,842 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-13 16:57:07,842 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-13 16:57:07,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:07,844 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2024-10-13 16:57:07,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-13 16:57:07,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:07,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:07,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:07,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:07,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:07,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-13 16:57:07,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-13 16:57:07,866 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-13 16:57:07,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:07,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:07,884 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2024-10-13 16:57:07,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-13 16:57:07,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-13 16:57:07,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-13 16:57:07,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-13 16:57:07,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-13 16:57:07,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-13 16:57:07,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-13 16:57:07,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-13 16:57:07,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-13 16:57:07,905 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-13 16:57:07,909 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-13 16:57:07,909 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-13 16:57:07,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 16:57:07,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:57:07,911 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2024-10-13 16:57:07,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-13 16:57:07,912 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-13 16:57:07,913 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-13 16:57:07,913 INFO L474 LassoAnalysis]: Proved termination. [2024-10-13 16:57:07,913 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2024-10-13 16:57:07,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-10-13 16:57:07,928 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-13 16:57:07,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:57:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:07,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:57:07,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:57:07,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:57:07,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:57:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:57:07,992 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-13 16:57:07,992 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-10-13 16:57:08,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) Result 36 states and 51 transitions. Complement of second has 6 states. [2024-10-13 16:57:08,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-13 16:57:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2024-10-13 16:57:08,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-10-13 16:57:08,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-13 16:57:08,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:08,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 4 letters. [2024-10-13 16:57:08,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:08,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2024-10-13 16:57:08,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-13 16:57:08,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 51 transitions. [2024-10-13 16:57:08,024 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:57:08,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2024-10-13 16:57:08,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 16:57:08,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 16:57:08,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 16:57:08,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 16:57:08,024 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:57:08,024 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:57:08,024 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 16:57:08,024 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-13 16:57:08,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-13 16:57:08,025 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 16:57:08,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-13 16:57:08,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 04:57:08 BoogieIcfgContainer [2024-10-13 16:57:08,034 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 16:57:08,034 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:57:08,034 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:57:08,035 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:57:08,035 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:57:01" (3/4) ... [2024-10-13 16:57:08,037 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 16:57:08,038 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:57:08,038 INFO L158 Benchmark]: Toolchain (without parser) took 7340.52ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 87.5MB in the beginning and 142.9MB in the end (delta: -55.4MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2024-10-13 16:57:08,038 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 144.7MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:57:08,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.64ms. Allocated memory is still 144.7MB. Free memory was 87.2MB in the beginning and 76.3MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 16:57:08,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.00ms. Allocated memory is still 144.7MB. Free memory was 76.3MB in the beginning and 74.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:57:08,039 INFO L158 Benchmark]: Boogie Preprocessor took 35.36ms. Allocated memory is still 144.7MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:57:08,039 INFO L158 Benchmark]: RCFGBuilder took 218.63ms. Allocated memory is still 144.7MB. Free memory was 73.4MB in the beginning and 64.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 16:57:08,039 INFO L158 Benchmark]: BuchiAutomizer took 6806.58ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 64.1MB in the beginning and 142.9MB in the end (delta: -78.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:57:08,040 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 199.2MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:57:08,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 144.7MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.64ms. Allocated memory is still 144.7MB. Free memory was 87.2MB in the beginning and 76.3MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.00ms. Allocated memory is still 144.7MB. Free memory was 76.3MB in the beginning and 74.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.36ms. Allocated memory is still 144.7MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 218.63ms. Allocated memory is still 144.7MB. Free memory was 73.4MB in the beginning and 64.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 6806.58ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 64.1MB in the beginning and 142.9MB in the end (delta: -78.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 199.2MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * y) + z) and consists of 4 locations. One deterministic module has 2-nested ranking function null, null and consists of 5 locations. One deterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function (((long) -1 * y) + z) and consists of 4 locations. One nondeterministic module has 2-nested ranking function null, null and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 74 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax164 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp97 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-13 16:57:08,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-10-13 16:57:08,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-10-13 16:57:08,465 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