./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9918b49e0d76e4ce36b6a6760021b33460a8ae9b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 00:24:32,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:24:32,404 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:24:32,413 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:24:32,413 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:24:32,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:24:32,414 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:24:32,416 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:24:32,417 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:24:32,417 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:24:32,418 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:24:32,418 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:24:32,419 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:24:32,419 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:24:32,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:24:32,420 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:24:32,421 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:24:32,422 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:24:32,424 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:24:32,425 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:24:32,425 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:24:32,426 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:24:32,428 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:24:32,428 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:24:32,428 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:24:32,429 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:24:32,430 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:24:32,430 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:24:32,431 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:24:32,432 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:24:32,432 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:24:32,432 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:24:32,432 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:24:32,432 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:24:32,433 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:24:32,434 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:24:32,434 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 00:24:32,447 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:24:32,448 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:24:32,449 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 00:24:32,449 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 00:24:32,449 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 00:24:32,449 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 00:24:32,449 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 00:24:32,449 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 00:24:32,449 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 00:24:32,450 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 00:24:32,450 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 00:24:32,450 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:24:32,450 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:24:32,450 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 00:24:32,450 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:24:32,451 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:24:32,451 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:24:32,451 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 00:24:32,451 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 00:24:32,451 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 00:24:32,451 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:24:32,451 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:24:32,452 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 00:24:32,452 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:24:32,452 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 00:24:32,452 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:24:32,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:24:32,452 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 00:24:32,452 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:24:32,453 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 00:24:32,453 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 00:24:32,453 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 00:24:32,454 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9918b49e0d76e4ce36b6a6760021b33460a8ae9b [2018-11-23 00:24:32,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:24:32,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:24:32,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:24:32,490 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:24:32,490 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:24:32,491 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-11-23 00:24:32,533 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/data/541bb0d75/7b13483aa1ee478eb9ee579e68bd1f8c/FLAG4884e1595 [2018-11-23 00:24:32,840 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:24:32,841 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-11-23 00:24:32,846 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/data/541bb0d75/7b13483aa1ee478eb9ee579e68bd1f8c/FLAG4884e1595 [2018-11-23 00:24:32,856 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/data/541bb0d75/7b13483aa1ee478eb9ee579e68bd1f8c [2018-11-23 00:24:32,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:24:32,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:24:32,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:24:32,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:24:32,864 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:24:32,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:32" (1/1) ... [2018-11-23 00:24:32,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc0002c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:32, skipping insertion in model container [2018-11-23 00:24:32,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:32" (1/1) ... [2018-11-23 00:24:32,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:24:32,885 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:24:32,989 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:24:32,991 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:24:33,002 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:24:33,010 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:24:33,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33 WrapperNode [2018-11-23 00:24:33,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:24:33,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:24:33,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:24:33,011 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:24:33,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:24:33,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:24:33,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:24:33,038 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:24:33,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... [2018-11-23 00:24:33,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:24:33,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:24:33,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:24:33,052 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:24:33,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:24:33,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:24:33,249 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:24:33,250 INFO L280 CfgBuilder]: Removed 13 assue(true) statements. [2018-11-23 00:24:33,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:33 BoogieIcfgContainer [2018-11-23 00:24:33,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:24:33,250 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 00:24:33,250 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 00:24:33,253 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 00:24:33,254 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 00:24:33,254 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 12:24:32" (1/3) ... [2018-11-23 00:24:33,255 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53015de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:24:33, skipping insertion in model container [2018-11-23 00:24:33,255 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 00:24:33,256 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:33" (2/3) ... [2018-11-23 00:24:33,256 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53015de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:24:33, skipping insertion in model container [2018-11-23 00:24:33,256 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 00:24:33,256 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:33" (3/3) ... [2018-11-23 00:24:33,258 INFO L375 chiAutomizerObserver]: Analyzing ICFG gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-11-23 00:24:33,310 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 00:24:33,311 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 00:24:33,311 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 00:24:33,311 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 00:24:33,311 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:24:33,311 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:24:33,311 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 00:24:33,312 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:24:33,312 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 00:24:33,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2018-11-23 00:24:33,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:33,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 00:24:33,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 00:24:33,350 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 00:24:33,350 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 00:24:33,350 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 00:24:33,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2018-11-23 00:24:33,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:33,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 00:24:33,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 00:24:33,352 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 00:24:33,352 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 00:24:33,357 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret0, main_~x~0, main_~y~0, main_~g~0;havoc main_~x~0;havoc main_~y~0;havoc main_~g~0;main_~x~0 := 63;main_~y~0 := 18;gcd_test_#in~a, gcd_test_#in~b := main_~x~0, main_~y~0;havoc gcd_test_#res;havoc gcd_test_~a, gcd_test_~b;gcd_test_~a := gcd_test_#in~a;gcd_test_~b := gcd_test_#in~b; 15#L12true assume !(gcd_test_~a < 0); 12#L12-2true assume !(gcd_test_~b < 0); 16#L13-1true assume !(0 == gcd_test_~a); 8#L20-2true [2018-11-23 00:24:33,357 INFO L796 eck$LassoCheckResult]: Loop: 8#L20-2true assume !!(0 != gcd_test_~b); 10#L20true assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 8#L20-2true [2018-11-23 00:24:33,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,361 INFO L82 PathProgramCache]: Analyzing trace with hash 959468, now seen corresponding path program 1 times [2018-11-23 00:24:33,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:24:33,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 1 times [2018-11-23 00:24:33,438 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:24:33,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,445 INFO L82 PathProgramCache]: Analyzing trace with hash 922049617, now seen corresponding path program 1 times [2018-11-23 00:24:33,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:24:33,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:33,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:24:33,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-23 00:24:33,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:24:33,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:24:33,539 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-23 00:24:33,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:24:33,578 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-23 00:24:33,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:24:33,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 23 transitions. [2018-11-23 00:24:33,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:33,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 8 states and 9 transitions. [2018-11-23 00:24:33,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-23 00:24:33,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-23 00:24:33,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-11-23 00:24:33,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 00:24:33,587 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-23 00:24:33,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-11-23 00:24:33,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-23 00:24:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 00:24:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-11-23 00:24:33,606 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-23 00:24:33,606 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-23 00:24:33,606 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 00:24:33,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2018-11-23 00:24:33,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:33,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 00:24:33,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 00:24:33,607 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 00:24:33,607 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 00:24:33,607 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~ret0, main_~x~0, main_~y~0, main_~g~0;havoc main_~x~0;havoc main_~y~0;havoc main_~g~0;main_~x~0 := 63;main_~y~0 := 18;gcd_test_#in~a, gcd_test_#in~b := main_~x~0, main_~y~0;havoc gcd_test_#res;havoc gcd_test_~a, gcd_test_~b;gcd_test_~a := gcd_test_#in~a;gcd_test_~b := gcd_test_#in~b; 56#L12 assume !(gcd_test_~a < 0); 53#L12-2 assume !(gcd_test_~b < 0); 54#L13-1 assume !(0 == gcd_test_~a); 57#L20-2 assume !!(0 != gcd_test_~b); 60#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 58#L20-2 [2018-11-23 00:24:33,607 INFO L796 eck$LassoCheckResult]: Loop: 58#L20-2 assume !!(0 != gcd_test_~b); 59#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 58#L20-2 [2018-11-23 00:24:33,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,608 INFO L82 PathProgramCache]: Analyzing trace with hash 922049615, now seen corresponding path program 1 times [2018-11-23 00:24:33,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:24:33,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 2 times [2018-11-23 00:24:33,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:24:33,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1326417908, now seen corresponding path program 1 times [2018-11-23 00:24:33,621 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,622 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:33,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:33,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:33,658 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:24:33,658 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:24:33,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:24:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:33,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:33,757 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 00:24:33,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2018-11-23 00:24:33,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 00:24:33,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-23 00:24:33,768 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand 6 states. [2018-11-23 00:24:33,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:24:33,789 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-11-23 00:24:33,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 00:24:33,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2018-11-23 00:24:33,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:33,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 11 transitions. [2018-11-23 00:24:33,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-23 00:24:33,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-23 00:24:33,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2018-11-23 00:24:33,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 00:24:33,791 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-11-23 00:24:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2018-11-23 00:24:33,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-11-23 00:24:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-23 00:24:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-11-23 00:24:33,793 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-11-23 00:24:33,793 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-11-23 00:24:33,793 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 00:24:33,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2018-11-23 00:24:33,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:33,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 00:24:33,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 00:24:33,794 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2018-11-23 00:24:33,794 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 00:24:33,794 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~ret0, main_~x~0, main_~y~0, main_~g~0;havoc main_~x~0;havoc main_~y~0;havoc main_~g~0;main_~x~0 := 63;main_~y~0 := 18;gcd_test_#in~a, gcd_test_#in~b := main_~x~0, main_~y~0;havoc gcd_test_#res;havoc gcd_test_~a, gcd_test_~b;gcd_test_~a := gcd_test_#in~a;gcd_test_~b := gcd_test_#in~b; 106#L12 assume !(gcd_test_~a < 0); 103#L12-2 assume !(gcd_test_~b < 0); 104#L13-1 assume !(0 == gcd_test_~a); 107#L20-2 assume !!(0 != gcd_test_~b); 110#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 108#L20-2 assume !!(0 != gcd_test_~b); 109#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 112#L20-2 [2018-11-23 00:24:33,794 INFO L796 eck$LassoCheckResult]: Loop: 112#L20-2 assume !!(0 != gcd_test_~b); 111#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 112#L20-2 [2018-11-23 00:24:33,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1326417906, now seen corresponding path program 2 times [2018-11-23 00:24:33,795 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:24:33,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 3 times [2018-11-23 00:24:33,806 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,807 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:33,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,811 INFO L82 PathProgramCache]: Analyzing trace with hash -917678377, now seen corresponding path program 2 times [2018-11-23 00:24:33,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,812 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:33,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:33,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:33,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:24:33,877 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:24:33,885 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 00:24:33,893 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 00:24:33,893 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 00:24:33,894 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:33,946 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 00:24:33,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2018-11-23 00:24:33,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 00:24:33,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 00:24:33,956 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. cyclomatic complexity: 2 Second operand 8 states. [2018-11-23 00:24:33,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:24:33,983 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-11-23 00:24:33,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 00:24:33,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2018-11-23 00:24:33,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:33,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 13 transitions. [2018-11-23 00:24:33,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-23 00:24:33,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-23 00:24:33,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2018-11-23 00:24:33,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 00:24:33,985 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-23 00:24:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2018-11-23 00:24:33,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 00:24:33,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 00:24:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-11-23 00:24:33,986 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-23 00:24:33,986 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-23 00:24:33,986 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 00:24:33,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2018-11-23 00:24:33,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:33,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 00:24:33,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 00:24:33,987 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2018-11-23 00:24:33,987 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 00:24:33,988 INFO L794 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~ret0, main_~x~0, main_~y~0, main_~g~0;havoc main_~x~0;havoc main_~y~0;havoc main_~g~0;main_~x~0 := 63;main_~y~0 := 18;gcd_test_#in~a, gcd_test_#in~b := main_~x~0, main_~y~0;havoc gcd_test_#res;havoc gcd_test_~a, gcd_test_~b;gcd_test_~a := gcd_test_#in~a;gcd_test_~b := gcd_test_#in~b; 168#L12 assume !(gcd_test_~a < 0); 165#L12-2 assume !(gcd_test_~b < 0); 166#L13-1 assume !(0 == gcd_test_~a); 169#L20-2 assume !!(0 != gcd_test_~b); 172#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 170#L20-2 assume !!(0 != gcd_test_~b); 171#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 176#L20-2 assume !!(0 != gcd_test_~b); 175#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 174#L20-2 [2018-11-23 00:24:33,988 INFO L796 eck$LassoCheckResult]: Loop: 174#L20-2 assume !!(0 != gcd_test_~b); 173#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 174#L20-2 [2018-11-23 00:24:33,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,988 INFO L82 PathProgramCache]: Analyzing trace with hash -917678379, now seen corresponding path program 3 times [2018-11-23 00:24:33,988 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:33,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:33,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,989 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:33,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:33,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:33,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 4 times [2018-11-23 00:24:33,999 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:34,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:34,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:34,000 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:34,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:34,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:34,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1420625670, now seen corresponding path program 3 times [2018-11-23 00:24:34,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:34,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:34,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:34,005 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:34,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:34,097 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 00:24:34,098 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 00:24:34,098 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 00:24:34,098 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 00:24:34,098 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 00:24:34,098 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:34,098 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 00:24:34,098 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 00:24:34,099 INFO L131 ssoRankerPreferences]: Filename of dumped script: gcd_4_true-unreach-call_true-no-overflow_true-termination.i_Iteration4_Lasso [2018-11-23 00:24:34,099 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 00:24:34,099 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 00:24:34,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,234 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 00:24:34,235 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:34,245 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 00:24:34,245 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 00:24:34,250 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 00:24:34,251 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret0=0} Honda state: {ULTIMATE.start_main_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:34,266 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 00:24:34,266 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 00:24:34,269 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 00:24:34,269 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:34,284 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 00:24:34,284 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 00:24:34,289 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 00:24:34,289 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_gcd_test_#res=0} Honda state: {ULTIMATE.start_gcd_test_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:34,306 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 00:24:34,306 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 00:24:34,308 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 00:24:34,308 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~g~0=0} Honda state: {ULTIMATE.start_main_~g~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:34,324 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 00:24:34,324 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:34,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 00:24:34,347 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 00:24:34,622 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 00:24:34,624 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 00:24:34,624 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 00:24:34,624 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 00:24:34,624 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 00:24:34,624 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 00:24:34,624 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 00:24:34,625 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 00:24:34,625 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 00:24:34,625 INFO L131 ssoRankerPreferences]: Filename of dumped script: gcd_4_true-unreach-call_true-no-overflow_true-termination.i_Iteration4_Lasso [2018-11-23 00:24:34,625 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 00:24:34,625 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 00:24:34,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 00:24:34,712 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 00:24:34,716 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 00:24:34,717 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 00:24:34,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 00:24:34,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 00:24:34,718 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 00:24:34,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 00:24:34,728 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2018-11-23 00:24:34,728 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-23 00:24:34,808 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 00:24:34,853 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2018-11-23 00:24:34,853 INFO L444 ModelExtractionUtils]: 25 out of 36 variables were initially zero. Simplification set additionally 5 variables to zero. [2018-11-23 00:24:34,855 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 00:24:34,858 INFO L440 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2018-11-23 00:24:34,858 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 00:24:34,859 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_gcd_test_~b) = 1*ULTIMATE.start_gcd_test_~b Supporting invariants [1*ULTIMATE.start_gcd_test_~a - 2 >= 0] [2018-11-23 00:24:34,881 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 00:24:34,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:34,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:34,946 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:34,948 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 1 loop predicates [2018-11-23 00:24:34,949 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand 6 states. [2018-11-23 00:24:35,008 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand 6 states. Result 13 states and 14 transitions. Complement of second has 6 states. [2018-11-23 00:24:35,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 00:24:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 00:24:35,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-23 00:24:35,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-23 00:24:35,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 00:24:35,012 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 00:24:35,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:35,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:35,081 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:35,082 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 1 loop predicates [2018-11-23 00:24:35,082 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand 6 states. [2018-11-23 00:24:35,119 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand 6 states. Result 13 states and 14 transitions. Complement of second has 6 states. [2018-11-23 00:24:35,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 00:24:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 00:24:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-23 00:24:35,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-23 00:24:35,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 00:24:35,120 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 00:24:35,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:35,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:35,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:35,177 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 1 loop predicates [2018-11-23 00:24:35,177 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand 6 states. [2018-11-23 00:24:35,261 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand 6 states. Result 20 states and 24 transitions. Complement of second has 12 states. [2018-11-23 00:24:35,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2018-11-23 00:24:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 00:24:35,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 19 transitions. [2018-11-23 00:24:35,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 19 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-23 00:24:35,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 00:24:35,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 19 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-23 00:24:35,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 00:24:35,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 19 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-23 00:24:35,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 00:24:35,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2018-11-23 00:24:35,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 00:24:35,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 22 transitions. [2018-11-23 00:24:35,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-23 00:24:35,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-23 00:24:35,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2018-11-23 00:24:35,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 00:24:35,265 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-11-23 00:24:35,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2018-11-23 00:24:35,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-11-23 00:24:35,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 00:24:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-11-23 00:24:35,266 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-23 00:24:35,266 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-23 00:24:35,266 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 00:24:35,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2018-11-23 00:24:35,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:35,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 00:24:35,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 00:24:35,268 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2018-11-23 00:24:35,268 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 00:24:35,268 INFO L794 eck$LassoCheckResult]: Stem: 407#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~ret0, main_~x~0, main_~y~0, main_~g~0;havoc main_~x~0;havoc main_~y~0;havoc main_~g~0;main_~x~0 := 63;main_~y~0 := 18;gcd_test_#in~a, gcd_test_#in~b := main_~x~0, main_~y~0;havoc gcd_test_#res;havoc gcd_test_~a, gcd_test_~b;gcd_test_~a := gcd_test_#in~a;gcd_test_~b := gcd_test_#in~b; 408#L12 assume !(gcd_test_~a < 0); 405#L12-2 assume !(gcd_test_~b < 0); 406#L13-1 assume !(0 == gcd_test_~a); 409#L20-2 assume !!(0 != gcd_test_~b); 420#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 419#L20-2 assume !!(0 != gcd_test_~b); 418#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 417#L20-2 assume !!(0 != gcd_test_~b); 416#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 415#L20-2 assume !!(0 != gcd_test_~b); 414#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 410#L20-2 [2018-11-23 00:24:35,268 INFO L796 eck$LassoCheckResult]: Loop: 410#L20-2 assume !!(0 != gcd_test_~b); 411#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 410#L20-2 [2018-11-23 00:24:35,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:35,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1420625672, now seen corresponding path program 4 times [2018-11-23 00:24:35,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:35,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:35,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,269 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:35,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:35,308 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:24:35,308 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:24:35,322 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 00:24:35,326 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 00:24:35,326 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 00:24:35,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:35,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:35,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 00:24:35,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2018-11-23 00:24:35,374 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 00:24:35,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:35,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 5 times [2018-11-23 00:24:35,374 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:35,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:35,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,375 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:35,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:35,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 00:24:35,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-11-23 00:24:35,386 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand 10 states. [2018-11-23 00:24:35,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:24:35,418 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-11-23 00:24:35,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 00:24:35,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2018-11-23 00:24:35,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:35,419 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 17 states and 19 transitions. [2018-11-23 00:24:35,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-23 00:24:35,419 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-23 00:24:35,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2018-11-23 00:24:35,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 00:24:35,419 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-23 00:24:35,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2018-11-23 00:24:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-23 00:24:35,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 00:24:35,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-23 00:24:35,420 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-23 00:24:35,420 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-23 00:24:35,420 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 00:24:35,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2018-11-23 00:24:35,421 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:35,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 00:24:35,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 00:24:35,421 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 1, 1, 1, 1, 1] [2018-11-23 00:24:35,421 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 00:24:35,421 INFO L794 eck$LassoCheckResult]: Stem: 487#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~ret0, main_~x~0, main_~y~0, main_~g~0;havoc main_~x~0;havoc main_~y~0;havoc main_~g~0;main_~x~0 := 63;main_~y~0 := 18;gcd_test_#in~a, gcd_test_#in~b := main_~x~0, main_~y~0;havoc gcd_test_#res;havoc gcd_test_~a, gcd_test_~b;gcd_test_~a := gcd_test_#in~a;gcd_test_~b := gcd_test_#in~b; 488#L12 assume !(gcd_test_~a < 0); 485#L12-2 assume !(gcd_test_~b < 0); 486#L13-1 assume !(0 == gcd_test_~a); 489#L20-2 assume !!(0 != gcd_test_~b); 500#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 499#L20-2 assume !!(0 != gcd_test_~b); 498#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 497#L20-2 assume !!(0 != gcd_test_~b); 496#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 495#L20-2 assume !!(0 != gcd_test_~b); 493#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 492#L20-2 assume !!(0 != gcd_test_~b); 494#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 490#L20-2 [2018-11-23 00:24:35,421 INFO L796 eck$LassoCheckResult]: Loop: 490#L20-2 assume !!(0 != gcd_test_~b); 491#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 490#L20-2 [2018-11-23 00:24:35,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:35,421 INFO L82 PathProgramCache]: Analyzing trace with hash 578332125, now seen corresponding path program 4 times [2018-11-23 00:24:35,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:35,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:35,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,422 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:35,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:35,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:24:35,492 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:24:35,503 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 00:24:35,509 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 00:24:35,509 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 00:24:35,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:35,608 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 00:24:35,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2018-11-23 00:24:35,608 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 00:24:35,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:35,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 6 times [2018-11-23 00:24:35,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:35,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:35,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,609 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:35,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:35,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 00:24:35,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-11-23 00:24:35,620 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand 12 states. [2018-11-23 00:24:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:24:35,666 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-23 00:24:35,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 00:24:35,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2018-11-23 00:24:35,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:35,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 21 transitions. [2018-11-23 00:24:35,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-23 00:24:35,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-23 00:24:35,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 21 transitions. [2018-11-23 00:24:35,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 00:24:35,669 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-23 00:24:35,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 21 transitions. [2018-11-23 00:24:35,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-11-23 00:24:35,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 00:24:35,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-23 00:24:35,671 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-23 00:24:35,671 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-23 00:24:35,671 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-23 00:24:35,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 20 transitions. [2018-11-23 00:24:35,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 00:24:35,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 00:24:35,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 00:24:35,673 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [6, 4, 2, 1, 1, 1, 1] [2018-11-23 00:24:35,673 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 00:24:35,673 INFO L794 eck$LassoCheckResult]: Stem: 579#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~ret0, main_~x~0, main_~y~0, main_~g~0;havoc main_~x~0;havoc main_~y~0;havoc main_~g~0;main_~x~0 := 63;main_~y~0 := 18;gcd_test_#in~a, gcd_test_#in~b := main_~x~0, main_~y~0;havoc gcd_test_#res;havoc gcd_test_~a, gcd_test_~b;gcd_test_~a := gcd_test_#in~a;gcd_test_~b := gcd_test_#in~b; 580#L12 assume !(gcd_test_~a < 0); 577#L12-2 assume !(gcd_test_~b < 0); 578#L13-1 assume !(0 == gcd_test_~a); 581#L20-2 assume !!(0 != gcd_test_~b); 594#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 593#L20-2 assume !!(0 != gcd_test_~b); 592#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 591#L20-2 assume !!(0 != gcd_test_~b); 590#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 588#L20-2 assume !!(0 != gcd_test_~b); 589#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 584#L20-2 assume !!(0 != gcd_test_~b); 585#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 587#L20-2 assume !!(0 != gcd_test_~b); 586#L20 assume gcd_test_~a > gcd_test_~b;gcd_test_~a := gcd_test_~a - gcd_test_~b; 582#L20-2 [2018-11-23 00:24:35,673 INFO L796 eck$LassoCheckResult]: Loop: 582#L20-2 assume !!(0 != gcd_test_~b); 583#L20 assume !(gcd_test_~a > gcd_test_~b);gcd_test_~b := gcd_test_~b - gcd_test_~a; 582#L20-2 [2018-11-23 00:24:35,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:35,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1726393730, now seen corresponding path program 5 times [2018-11-23 00:24:35,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:35,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:35,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,674 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:35,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:24:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:35,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 00:24:35,738 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e0a6523-78c8-4789-9130-3ee7e95e0933/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 00:24:35,744 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-23 00:24:35,750 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-11-23 00:24:35,751 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 00:24:35,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:24:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:24:35,852 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 00:24:35,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-23 00:24:35,853 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 00:24:35,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:24:35,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1830, now seen corresponding path program 7 times [2018-11-23 00:24:35,853 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:24:35,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:24:35,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,854 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 00:24:35,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:24:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:24:35,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 00:24:35,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-23 00:24:35,880 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. cyclomatic complexity: 4 Second operand 13 states. [2018-11-23 00:24:35,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:24:35,961 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-11-23 00:24:35,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 00:24:35,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 14 transitions. [2018-11-23 00:24:35,962 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 00:24:35,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-23 00:24:35,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 00:24:35,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 00:24:35,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 00:24:35,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 00:24:35,962 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:24:35,962 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:24:35,962 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:24:35,962 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-23 00:24:35,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:24:35,962 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 00:24:35,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 00:24:35,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 12:24:35 BoogieIcfgContainer [2018-11-23 00:24:35,967 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 00:24:35,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:24:35,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:24:35,968 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:24:35,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:33" (3/4) ... [2018-11-23 00:24:35,970 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 00:24:35,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:24:35,971 INFO L168 Benchmark]: Toolchain (without parser) took 3111.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 959.1 MB in the beginning and 991.4 MB in the end (delta: -32.3 MB). Peak memory consumption was 103.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:24:35,972 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:24:35,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.99 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:24:35,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.09 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:24:35,973 INFO L168 Benchmark]: Boogie Preprocessor took 14.32 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:24:35,973 INFO L168 Benchmark]: RCFGBuilder took 197.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-23 00:24:35,974 INFO L168 Benchmark]: BuchiAutomizer took 2716.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.4 MB in the end (delta: 130.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 11.5 GB. [2018-11-23 00:24:35,974 INFO L168 Benchmark]: Witness Printer took 3.09 ms. Allocated memory is still 1.2 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:24:35,976 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.99 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.09 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.32 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 197.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2716.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.4 MB in the end (delta: 130.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 ms. Allocated memory is still 1.2 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (6 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function b and consists of 7 locations. 6 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 8 iterations. TraceHistogramMax:6. Analysis of lassos took 1.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 6. Nontrivial modules had stage [0, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 70 SDslu, 12 SDs, 0 SdLazy, 287 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN3 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital39 mio100 ax100 hnf92 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq205 hnf90 smp100 dnf122 smp100 tf100 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 142ms VariablesStem: 6 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...