./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.18.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.18.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/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 64bit --witnessprinter.graph.data.programhash bd4093f0fb25d9d8e9de7e7010b28ffecefa6ef0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:11:17,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:11:17,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:11:17,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:11:17,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:11:17,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:11:17,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:11:17,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:11:17,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:11:17,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:11:17,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:11:17,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:11:17,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:11:17,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:11:17,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:11:17,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:11:17,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:11:17,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:11:17,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:11:17,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:11:17,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:11:17,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:11:17,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:11:17,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:11:17,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:11:17,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:11:17,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:11:17,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:11:17,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:11:17,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:11:17,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:11:17,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:11:17,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:11:17,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:11:17,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:11:17,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:11:17,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:11:17,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:11:17,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:11:17,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:11:17,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:11:17,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 21:11:17,593 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:11:17,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:11:17,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:11:17,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:11:17,596 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:11:17,596 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 21:11:17,596 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 21:11:17,596 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 21:11:17,597 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 21:11:17,597 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 21:11:17,597 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 21:11:17,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:11:17,598 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:11:17,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:11:17,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:11:17,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 21:11:17,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 21:11:17,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 21:11:17,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:11:17,600 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 21:11:17,600 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:11:17,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 21:11:17,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:11:17,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:11:17,601 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 21:11:17,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:11:17,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:11:17,602 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 21:11:17,603 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 21:11:17,603 INFO L138 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/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd4093f0fb25d9d8e9de7e7010b28ffecefa6ef0 [2019-11-15 21:11:17,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:11:17,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:11:17,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:11:17,649 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:11:17,650 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:11:17,650 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.18.c [2019-11-15 21:11:17,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/data/b93d3ca4c/0c11171afe5c4dc582bf4cfa54d91c31/FLAG04992895e [2019-11-15 21:11:18,092 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:11:18,093 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/sv-benchmarks/c/termination-restricted-15/b.18.c [2019-11-15 21:11:18,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/data/b93d3ca4c/0c11171afe5c4dc582bf4cfa54d91c31/FLAG04992895e [2019-11-15 21:11:18,473 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/data/b93d3ca4c/0c11171afe5c4dc582bf4cfa54d91c31 [2019-11-15 21:11:18,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:11:18,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:11:18,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:11:18,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:11:18,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:11:18,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@764e0abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18, skipping insertion in model container [2019-11-15 21:11:18,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,498 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:11:18,512 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:11:18,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:11:18,750 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:11:18,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:11:18,782 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:11:18,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18 WrapperNode [2019-11-15 21:11:18,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:11:18,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:11:18,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:11:18,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:11:18,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:11:18,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:11:18,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:11:18,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:11:18,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... [2019-11-15 21:11:18,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:11:18,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:11:18,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:11:18,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:11:18,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/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 [2019-11-15 21:11:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:11:18,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:11:19,077 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:11:19,077 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 21:11:19,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:11:19 BoogieIcfgContainer [2019-11-15 21:11:19,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:11:19,079 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 21:11:19,079 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 21:11:19,082 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 21:11:19,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:11:19,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 09:11:18" (1/3) ... [2019-11-15 21:11:19,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bf01b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:11:19, skipping insertion in model container [2019-11-15 21:11:19,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:11:19,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:11:18" (2/3) ... [2019-11-15 21:11:19,085 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bf01b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:11:19, skipping insertion in model container [2019-11-15 21:11:19,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:11:19,085 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:11:19" (3/3) ... [2019-11-15 21:11:19,087 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.18.c [2019-11-15 21:11:19,149 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 21:11:19,149 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 21:11:19,150 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 21:11:19,150 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:11:19,150 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:11:19,150 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 21:11:19,150 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:11:19,151 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 21:11:19,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-15 21:11:19,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 21:11:19,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:11:19,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:11:19,198 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 21:11:19,199 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:11:19,199 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 21:11:19,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-15 21:11:19,201 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 21:11:19,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:11:19,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:11:19,201 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 21:11:19,202 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:11:19,210 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L15-3true [2019-11-15 21:11:19,211 INFO L793 eck$LassoCheckResult]: Loop: 5#L15-3true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3#L10true assume !(main_~x~0 > main_~y~0); 8#L15-2true assume !(main_~y~0 > 0); 5#L15-3true [2019-11-15 21:11:19,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:19,217 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 21:11:19,227 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:19,227 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449416784] [2019-11-15 21:11:19,228 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,228 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,332 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:19,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:19,334 INFO L82 PathProgramCache]: Analyzing trace with hash 40272, now seen corresponding path program 1 times [2019-11-15 21:11:19,334 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:19,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616225688] [2019-11-15 21:11:19,335 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,335 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:11:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:11:19,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616225688] [2019-11-15 21:11:19,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:11:19,387 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:11:19,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451794858] [2019-11-15 21:11:19,391 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 21:11:19,393 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:11:19,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:11:19,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:11:19,408 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-11-15 21:11:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:11:19,446 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-11-15 21:11:19,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:11:19,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-11-15 21:11:19,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-15 21:11:19,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 7 states and 10 transitions. [2019-11-15 21:11:19,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-15 21:11:19,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-15 21:11:19,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-15 21:11:19,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:11:19,455 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 21:11:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-15 21:11:19,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-11-15 21:11:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-15 21:11:19,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-11-15 21:11:19,486 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-15 21:11:19,486 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-11-15 21:11:19,486 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 21:11:19,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2019-11-15 21:11:19,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-15 21:11:19,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:11:19,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:11:19,488 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 21:11:19,488 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:11:19,489 INFO L791 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 37#L15-3 [2019-11-15 21:11:19,489 INFO L793 eck$LassoCheckResult]: Loop: 37#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 33#L10 assume main_~x~0 > main_~y~0; 35#L11-2 assume !(main_~x~0 > 0); 37#L15-3 [2019-11-15 21:11:19,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:19,489 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-15 21:11:19,490 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:19,490 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318573330] [2019-11-15 21:11:19,490 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,490 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,498 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:19,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:19,499 INFO L82 PathProgramCache]: Analyzing trace with hash 39824, now seen corresponding path program 1 times [2019-11-15 21:11:19,499 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:19,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224426331] [2019-11-15 21:11:19,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:11:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:11:19,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224426331] [2019-11-15 21:11:19,523 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:11:19,523 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:11:19,524 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115855221] [2019-11-15 21:11:19,524 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 21:11:19,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:11:19,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:11:19,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:11:19,525 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-15 21:11:19,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:11:19,555 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2019-11-15 21:11:19,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:11:19,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2019-11-15 21:11:19,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-15 21:11:19,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2019-11-15 21:11:19,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-15 21:11:19,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-15 21:11:19,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-15 21:11:19,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:11:19,559 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-15 21:11:19,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-15 21:11:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-15 21:11:19,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-15 21:11:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-15 21:11:19,561 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 21:11:19,561 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 21:11:19,561 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 21:11:19,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-15 21:11:19,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-15 21:11:19,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:11:19,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:11:19,562 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 21:11:19,562 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-15 21:11:19,563 INFO L791 eck$LassoCheckResult]: Stem: 56#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 57#L15-3 [2019-11-15 21:11:19,563 INFO L793 eck$LassoCheckResult]: Loop: 57#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 53#L10 assume !(main_~x~0 > main_~y~0); 54#L15-2 assume !!(main_~y~0 > 0);main_~y~0 := main_~y~0 - 1; 58#L15-2 assume !(main_~y~0 > 0); 57#L15-3 [2019-11-15 21:11:19,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:19,563 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 3 times [2019-11-15 21:11:19,564 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:19,564 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155109318] [2019-11-15 21:11:19,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,564 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,572 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:19,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:19,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1248528, now seen corresponding path program 1 times [2019-11-15 21:11:19,573 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:19,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375854565] [2019-11-15 21:11:19,573 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,574 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,585 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:19,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:19,585 INFO L82 PathProgramCache]: Analyzing trace with hash 29877679, now seen corresponding path program 1 times [2019-11-15 21:11:19,586 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:19,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552856977] [2019-11-15 21:11:19,586 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,587 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:19,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:19,601 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:19,686 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:11:19,687 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:11:19,687 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:11:19,687 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:11:19,687 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:11:19,687 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:11:19,687 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:11:19,687 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:11:19,688 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration3_Loop [2019-11-15 21:11:19,688 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:11:19,688 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:11:19,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:19,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:19,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:19,856 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:11:19,857 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:11:19,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:11:19,866 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:11:19,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:11:19,885 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:11:19,982 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 21:11:19,984 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:11:19,984 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:11:19,984 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:11:19,984 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:11:19,984 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:11:19,984 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:11:19,984 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:11:19,985 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:11:19,985 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration3_Loop [2019-11-15 21:11:19,985 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:11:19,985 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:11:19,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,104 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:11:20,110 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:11:20,112 INFO L120 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 [2019-11-15 21:11:20,114 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:11:20,114 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:11:20,115 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:11:20,115 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:11:20,115 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:11:20,121 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:11:20,121 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:11:20,152 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:11:20,176 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 21:11:20,176 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 21:11:20,179 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:11:20,192 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 21:11:20,193 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:11:20,194 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-15 21:11:20,197 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 21:11:20,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:11:20,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:11:20,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:11:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:11:20,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:11:20,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:11:20,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 21:11:20,280 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 21:11:20,281 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-15 21:11:20,347 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 6 states. [2019-11-15 21:11:20,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 21:11:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 21:11:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-15 21:11:20,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-15 21:11:20,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:11:20,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-15 21:11:20,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:11:20,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 8 letters. [2019-11-15 21:11:20,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:11:20,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2019-11-15 21:11:20,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 21:11:20,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 21 transitions. [2019-11-15 21:11:20,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-15 21:11:20,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-15 21:11:20,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2019-11-15 21:11:20,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 21:11:20,357 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-11-15 21:11:20,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2019-11-15 21:11:20,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2019-11-15 21:11:20,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 21:11:20,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2019-11-15 21:11:20,360 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2019-11-15 21:11:20,360 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2019-11-15 21:11:20,361 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 21:11:20,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2019-11-15 21:11:20,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-15 21:11:20,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:11:20,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:11:20,363 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 21:11:20,363 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-15 21:11:20,363 INFO L791 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 121#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 115#L10 [2019-11-15 21:11:20,363 INFO L793 eck$LassoCheckResult]: Loop: 115#L10 assume main_~x~0 > main_~y~0; 116#L11-2 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 125#L11-2 assume !(main_~x~0 > 0); 122#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 115#L10 [2019-11-15 21:11:20,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:20,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-15 21:11:20,364 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:20,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924624400] [2019-11-15 21:11:20,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:20,384 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:20,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:20,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1332576, now seen corresponding path program 1 times [2019-11-15 21:11:20,385 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:20,385 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140303168] [2019-11-15 21:11:20,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:11:20,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 21:11:20,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140303168] [2019-11-15 21:11:20,401 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:11:20,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:11:20,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676982792] [2019-11-15 21:11:20,402 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 21:11:20,402 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:11:20,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:11:20,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:11:20,403 INFO L87 Difference]: Start difference. First operand 12 states and 18 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-15 21:11:20,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:11:20,422 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2019-11-15 21:11:20,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:11:20,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2019-11-15 21:11:20,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 21:11:20,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 13 transitions. [2019-11-15 21:11:20,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-15 21:11:20,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-15 21:11:20,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-11-15 21:11:20,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 21:11:20,426 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-15 21:11:20,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-11-15 21:11:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-11-15 21:11:20,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-15 21:11:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2019-11-15 21:11:20,428 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2019-11-15 21:11:20,428 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2019-11-15 21:11:20,428 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 21:11:20,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2019-11-15 21:11:20,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 21:11:20,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:11:20,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:11:20,430 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 21:11:20,430 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 21:11:20,430 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 152#L15-3 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 147#L10 assume main_~x~0 > main_~y~0; 148#L11-2 [2019-11-15 21:11:20,430 INFO L793 eck$LassoCheckResult]: Loop: 148#L11-2 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 148#L11-2 [2019-11-15 21:11:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:20,430 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-15 21:11:20,431 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:20,431 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453337182] [2019-11-15 21:11:20,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:20,442 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:20,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:20,443 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2019-11-15 21:11:20,443 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:20,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207780349] [2019-11-15 21:11:20,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,444 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:20,450 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:20,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:20,451 INFO L82 PathProgramCache]: Analyzing trace with hash 963347, now seen corresponding path program 1 times [2019-11-15 21:11:20,451 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:11:20,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000087420] [2019-11-15 21:11:20,451 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,451 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:11:20,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:11:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:11:20,461 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:11:20,483 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:11:20,483 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:11:20,483 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:11:20,483 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:11:20,484 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:11:20,484 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:11:20,484 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:11:20,484 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:11:20,484 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration5_Loop [2019-11-15 21:11:20,484 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:11:20,484 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:11:20,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,560 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:11:20,560 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:11:20,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:11:20,571 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:11:20,581 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:11:20,581 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:11:20,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:11:20,599 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b7e99ee-acf3-4165-be06-58ca518a164a/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 21:11:20,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:11:20,625 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:11:20,646 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 21:11:20,648 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:11:20,648 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:11:20,648 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:11:20,648 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:11:20,649 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:11:20,649 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:11:20,649 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:11:20,649 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:11:20,649 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration5_Loop [2019-11-15 21:11:20,649 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:11:20,649 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:11:20,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:11:20,727 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:11:20,728 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:11:20,728 INFO L120 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 [2019-11-15 21:11:20,729 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:11:20,729 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:11:20,729 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:11:20,729 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:11:20,733 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:11:20,733 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:11:20,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:11:20,738 INFO L120 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 [2019-11-15 21:11:20,739 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:11:20,739 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:11:20,739 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:11:20,739 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:11:20,739 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:11:20,740 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:11:20,740 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:11:20,745 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:11:20,749 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 21:11:20,749 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 21:11:20,749 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:11:20,750 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 21:11:20,750 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:11:20,750 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-15 21:11:20,751 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 21:11:20,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:11:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:11:20,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:11:20,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:11:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:11:20,796 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:11:20,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:11:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:11:20,797 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-15 21:11:20,797 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-15 21:11:20,803 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 10 states and 13 transitions. Complement of second has 2 states. [2019-11-15 21:11:20,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-15 21:11:20,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 21:11:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2019-11-15 21:11:20,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-15 21:11:20,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:11:20,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-15 21:11:20,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:11:20,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-15 21:11:20,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:11:20,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2019-11-15 21:11:20,807 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 21:11:20,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2019-11-15 21:11:20,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 21:11:20,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 21:11:20,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 21:11:20,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:11:20,808 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:11:20,808 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:11:20,808 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:11:20,808 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-15 21:11:20,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:11:20,808 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 21:11:20,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 21:11:20,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 09:11:20 BoogieIcfgContainer [2019-11-15 21:11:20,819 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 21:11:20,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:11:20,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:11:20,820 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:11:20,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:11:19" (3/4) ... [2019-11-15 21:11:20,830 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:11:20,830 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:11:20,834 INFO L168 Benchmark]: Toolchain (without parser) took 2354.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 981.5 MB in the end (delta: -36.8 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:11:20,834 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:11:20,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:11:20,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:11:20,838 INFO L168 Benchmark]: Boogie Preprocessor took 18.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:11:20,844 INFO L168 Benchmark]: RCFGBuilder took 245.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:11:20,844 INFO L168 Benchmark]: BuchiAutomizer took 1739.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.5 MB in the end (delta: 135.3 MB). Peak memory consumption was 135.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:11:20,845 INFO L168 Benchmark]: Witness Printer took 11.07 ms. Allocated memory is still 1.2 GB. Free memory is still 981.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:11:20,848 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 301.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 245.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1739.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.5 MB in the end (delta: 135.3 MB). Peak memory consumption was 135.3 MB. Max. memory is 11.5 GB. * Witness Printer took 11.07 ms. Allocated memory is still 1.2 GB. Free memory is still 981.5 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 5 terminating modules (3 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 2 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 34 SDtfs, 25 SDslu, 7 SDs, 0 SdLazy, 34 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax193 hnf96 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp88 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...