./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 64bit --witnessprinter.graph.data.programhash 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:23:03,062 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:23:03,063 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:23:03,071 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:23:03,071 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:23:03,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:23:03,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:23:03,073 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:23:03,074 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:23:03,075 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:23:03,076 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:23:03,076 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:23:03,077 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:23:03,077 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:23:03,078 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:23:03,079 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:23:03,079 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:23:03,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:23:03,082 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:23:03,083 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:23:03,084 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:23:03,084 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:23:03,086 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:23:03,086 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:23:03,086 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:23:03,087 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:23:03,088 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:23:03,088 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:23:03,089 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:23:03,090 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:23:03,090 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:23:03,090 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:23:03,091 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:23:03,091 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:23:03,091 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:23:03,092 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:23:03,092 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 13:23:03,103 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:23:03,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:23:03,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:23:03,105 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:23:03,105 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:23:03,105 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:23:03,105 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:23:03,105 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:23:03,105 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:23:03,105 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:23:03,106 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:23:03,106 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:23:03,106 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:23:03,106 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:23:03,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:23:03,106 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:23:03,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:23:03,107 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:23:03,107 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:23:03,107 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:23:03,107 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:23:03,107 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:23:03,107 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:23:03,107 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:23:03,108 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:23:03,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:23:03,108 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:23:03,108 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:23:03,109 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:23:03,109 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_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2018-11-28 13:23:03,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:23:03,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:23:03,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:23:03,144 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:23:03,144 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:23:03,145 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-28 13:23:03,181 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/data/e4c22b5e3/7098c5980f7649a29a56559f1081cd94/FLAG8accb6998 [2018-11-28 13:23:03,579 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:23:03,579 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-28 13:23:03,583 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/data/e4c22b5e3/7098c5980f7649a29a56559f1081cd94/FLAG8accb6998 [2018-11-28 13:23:03,593 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/data/e4c22b5e3/7098c5980f7649a29a56559f1081cd94 [2018-11-28 13:23:03,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:23:03,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:23:03,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:23:03,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:23:03,599 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:23:03,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53388048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03, skipping insertion in model container [2018-11-28 13:23:03,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:23:03,619 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:23:03,708 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:23:03,710 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:23:03,719 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:23:03,727 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:23:03,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03 WrapperNode [2018-11-28 13:23:03,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:23:03,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:23:03,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:23:03,728 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:23:03,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:23:03,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:23:03,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:23:03,749 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:23:03,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... [2018-11-28 13:23:03,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:23:03,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:23:03,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:23:03,762 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:23:03,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 [2018-11-28 13:23:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:23:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:23:03,952 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:23:03,953 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 13:23:03,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:03 BoogieIcfgContainer [2018-11-28 13:23:03,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:23:03,953 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:23:03,954 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:23:03,956 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:23:03,956 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:23:03,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:23:03" (1/3) ... [2018-11-28 13:23:03,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e1ea22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:23:03, skipping insertion in model container [2018-11-28 13:23:03,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:23:03,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:23:03" (2/3) ... [2018-11-28 13:23:03,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e1ea22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:23:03, skipping insertion in model container [2018-11-28 13:23:03,958 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:23:03,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:03" (3/3) ... [2018-11-28 13:23:03,959 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-28 13:23:04,007 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:23:04,007 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:23:04,007 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:23:04,007 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:23:04,008 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:23:04,008 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:23:04,008 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:23:04,008 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:23:04,008 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:23:04,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-28 13:23:04,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 13:23:04,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:23:04,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:23:04,044 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 13:23:04,044 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:23:04,044 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:23:04,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-28 13:23:04,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 13:23:04,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:23:04,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:23:04,045 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 13:23:04,045 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:23:04,052 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 8#L18true assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 5#L19-2true [2018-11-28 13:23:04,052 INFO L796 eck$LassoCheckResult]: Loop: 5#L19-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L21true assume !(main_~y~0 < main_~x~0); 12#L21-1true main_~x~0 := main_~x~0 - 1; 5#L19-2true [2018-11-28 13:23:04,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:04,057 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-28 13:23:04,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:04,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:04,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:04,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:04,133 INFO L82 PathProgramCache]: Analyzing trace with hash 43246, now seen corresponding path program 1 times [2018-11-28 13:23:04,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:04,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:04,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:04,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:04,143 INFO L82 PathProgramCache]: Analyzing trace with hash 29685291, now seen corresponding path program 1 times [2018-11-28 13:23:04,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:04,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:04,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:04,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,200 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:23:04,200 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:23:04,200 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:23:04,201 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:23:04,201 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:23:04,201 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:04,201 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:23:04,201 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:23:04,201 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 13:23:04,201 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:23:04,202 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:23:04,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,329 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:23:04,329 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/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 [2018-11-28 13:23:04,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,335 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:04,360 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:04,360 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:04,362 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,363 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:04,377 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:04,377 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 [2018-11-28 13:23:04,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,380 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 [2018-11-28 13:23:04,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:23:04,397 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:04,415 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:23:04,416 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:23:04,416 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:23:04,416 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:23:04,416 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:23:04,416 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:23:04,416 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:04,416 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:23:04,416 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:23:04,417 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 13:23:04,417 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:23:04,417 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:23:04,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,484 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:23:04,489 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:23:04,490 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 [2018-11-28 13:23:04,491 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:04,492 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:04,492 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:04,492 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:04,495 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:23:04,496 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:23:04,504 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:23:04,505 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 [2018-11-28 13:23:04,505 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:04,505 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:04,506 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:04,506 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:04,507 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:23:04,508 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:23:04,513 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:23:04,514 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 [2018-11-28 13:23:04,514 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:04,515 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:23:04,515 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:04,515 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:04,515 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:04,516 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:23:04,516 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:23:04,522 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:23:04,526 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:23:04,526 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 13:23:04,528 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:23:04,528 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:23:04,528 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:23:04,528 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-28 13:23:04,529 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:23:04,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:04,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:04,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:04,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:04,593 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 [2018-11-28 13:23:04,594 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-11-28 13:23:04,642 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 30 states and 44 transitions. Complement of second has 7 states. [2018-11-28 13:23:04,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 13:23:04,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:23:04,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2018-11-28 13:23:04,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-28 13:23:04,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:04,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-28 13:23:04,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:04,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-28 13:23:04,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:04,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2018-11-28 13:23:04,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:23:04,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 9 states and 13 transitions. [2018-11-28 13:23:04,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 13:23:04,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 13:23:04,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-28 13:23:04,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:23:04,660 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-28 13:23:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-28 13:23:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-28 13:23:04,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-28 13:23:04,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2018-11-28 13:23:04,683 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-28 13:23:04,683 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-28 13:23:04,683 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:23:04,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2018-11-28 13:23:04,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:23:04,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:23:04,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:23:04,684 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 13:23:04,684 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 13:23:04,684 INFO L794 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 88#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 89#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 82#L21 assume main_~y~0 < main_~x~0; 83#L22-2 [2018-11-28 13:23:04,684 INFO L796 eck$LassoCheckResult]: Loop: 83#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 83#L22-2 [2018-11-28 13:23:04,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:04,685 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-28 13:23:04,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:04,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:04,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:04,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:04,692 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2018-11-28 13:23:04,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:04,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:04,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:04,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:04,696 INFO L82 PathProgramCache]: Analyzing trace with hash 29684850, now seen corresponding path program 1 times [2018-11-28 13:23:04,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:04,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:04,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:04,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:04,749 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:23:04,749 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:23:04,749 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:23:04,749 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:23:04,749 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:23:04,749 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:04,749 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:23:04,750 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:23:04,750 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-28 13:23:04,750 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:23:04,750 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:23:04,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:04,806 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:23:04,806 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 [2018-11-28 13:23:04,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,812 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:04,828 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:04,828 INFO L448 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/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 [2018-11-28 13:23:04,831 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,831 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:04,833 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:04,833 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 [2018-11-28 13:23:04,849 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,849 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:04,851 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:04,851 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/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 [2018-11-28 13:23:04,866 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,866 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:04,875 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:04,875 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_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:04,896 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,897 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:04,921 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:04,922 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:04,924 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:04,924 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:04,947 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:23:04,947 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:18,449 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 13:23:18,455 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:23:18,456 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:23:18,456 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:23:18,456 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:23:18,456 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:23:18,456 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:18,456 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:23:18,457 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:23:18,457 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-28 13:23:18,457 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:23:18,457 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:23:18,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:18,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:18,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:18,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:18,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:18,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:18,546 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:23:18,546 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:23:18,547 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 [2018-11-28 13:23:18,548 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:18,548 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:18,548 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:18,548 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:18,550 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:23:18,550 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:23:18,555 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:23:18,556 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 [2018-11-28 13:23:18,556 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:18,557 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:18,557 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:18,557 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:18,560 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:23:18,560 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:23:18,606 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:23:18,626 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-28 13:23:18,626 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 13:23:18,627 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:23:18,629 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2018-11-28 13:23:18,629 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:23:18,629 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483645 Supporting invariants [-1*ULTIMATE.start_main_~x~0 + 1073741823 >= 0, 1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-28 13:23:18,642 INFO L297 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2018-11-28 13:23:18,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:18,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:18,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:18,693 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2018-11-28 13:23:18,694 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 4 states. [2018-11-28 13:23:18,732 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2018-11-28 13:23:18,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 13:23:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 13:23:18,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2018-11-28 13:23:18,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 13:23:18,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:18,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 13:23:18,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:18,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 13:23:18,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:18,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2018-11-28 13:23:18,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:23:18,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 21 transitions. [2018-11-28 13:23:18,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 13:23:18,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 13:23:18,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2018-11-28 13:23:18,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:23:18,737 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2018-11-28 13:23:18,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2018-11-28 13:23:18,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2018-11-28 13:23:18,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 13:23:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2018-11-28 13:23:18,738 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 13:23:18,738 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 13:23:18,738 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 13:23:18,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2018-11-28 13:23:18,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:23:18,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:23:18,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:23:18,740 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2018-11-28 13:23:18,740 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 13:23:18,740 INFO L794 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 170#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 171#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 172#L21 assume main_~y~0 < main_~x~0; 167#L22-2 assume !(main_~y~0 < main_~x~0); 168#L21-1 main_~x~0 := main_~x~0 - 1; 174#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 164#L21 assume main_~y~0 < main_~x~0; 165#L22-2 [2018-11-28 13:23:18,740 INFO L796 eck$LassoCheckResult]: Loop: 165#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 165#L22-2 [2018-11-28 13:23:18,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:18,740 INFO L82 PathProgramCache]: Analyzing trace with hash -421925037, now seen corresponding path program 1 times [2018-11-28 13:23:18,740 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:18,740 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:18,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:18,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:18,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:18,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:23:18,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:23:18,765 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:23:18,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:18,765 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2018-11-28 13:23:18,765 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:18,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:18,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:18,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:18,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:18,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:23:18,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:23:18,786 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-28 13:23:18,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:23:18,803 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-11-28 13:23:18,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:23:18,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-11-28 13:23:18,804 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:23:18,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 18 transitions. [2018-11-28 13:23:18,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 13:23:18,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-28 13:23:18,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2018-11-28 13:23:18,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:23:18,805 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-11-28 13:23:18,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2018-11-28 13:23:18,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-28 13:23:18,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-28 13:23:18,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2018-11-28 13:23:18,806 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-28 13:23:18,806 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-28 13:23:18,806 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 13:23:18,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2018-11-28 13:23:18,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:23:18,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:23:18,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:23:18,807 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-28 13:23:18,807 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 13:23:18,808 INFO L794 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 202#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 203#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 198#L21 assume main_~y~0 < main_~x~0; 199#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 205#L22-2 assume !(main_~y~0 < main_~x~0); 208#L21-1 main_~x~0 := main_~x~0 - 1; 206#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 196#L21 assume main_~y~0 < main_~x~0; 197#L22-2 [2018-11-28 13:23:18,808 INFO L796 eck$LassoCheckResult]: Loop: 197#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 197#L22-2 [2018-11-28 13:23:18,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:18,808 INFO L82 PathProgramCache]: Analyzing trace with hash -193177154, now seen corresponding path program 1 times [2018-11-28 13:23:18,808 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:18,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:18,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:18,809 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:23:18,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:18,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:18,850 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:23:18,851 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:23:18,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:18,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:18,909 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:23:18,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-28 13:23:18,910 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:23:18,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:18,910 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2018-11-28 13:23:18,910 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:18,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:18,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:18,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:23:18,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:18,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:23:18,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:23:18,924 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand 8 states. [2018-11-28 13:23:19,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:23:19,006 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2018-11-28 13:23:19,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:23:19,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2018-11-28 13:23:19,008 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:23:19,009 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 14 states and 16 transitions. [2018-11-28 13:23:19,009 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-28 13:23:19,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 13:23:19,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2018-11-28 13:23:19,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:23:19,009 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-11-28 13:23:19,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2018-11-28 13:23:19,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2018-11-28 13:23:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 13:23:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-11-28 13:23:19,010 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-28 13:23:19,010 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-28 13:23:19,010 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 13:23:19,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2018-11-28 13:23:19,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:23:19,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:23:19,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:23:19,011 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2018-11-28 13:23:19,011 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 13:23:19,011 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 284#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 285#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 281#L21 assume main_~y~0 < main_~x~0; 282#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 287#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 289#L22-2 assume !(main_~y~0 < main_~x~0); 288#L21-1 main_~x~0 := main_~x~0 - 1; 286#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 279#L21 assume main_~y~0 < main_~x~0; 280#L22-2 [2018-11-28 13:23:19,011 INFO L796 eck$LassoCheckResult]: Loop: 280#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 280#L22-2 [2018-11-28 13:23:19,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:19,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1691927373, now seen corresponding path program 2 times [2018-11-28 13:23:19,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:19,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:19,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:19,013 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:23:19,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:19,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:19,020 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2018-11-28 13:23:19,020 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:19,020 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:19,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:19,021 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:23:19,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:19,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:19,024 INFO L82 PathProgramCache]: Analyzing trace with hash -910140986, now seen corresponding path program 3 times [2018-11-28 13:23:19,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:23:19,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:23:19,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:19,025 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:23:19,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:23:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:23:19,094 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:23:19,094 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:23:19,094 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:23:19,094 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:23:19,094 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:23:19,094 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:19,095 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:23:19,095 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:23:19,095 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-28 13:23:19,095 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:23:19,095 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:23:19,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,173 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:23:19,173 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:19,175 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:19,175 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:19,177 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:19,177 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_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:19,200 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:19,200 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:19,201 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:19,202 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:19,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:19,217 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:19,219 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:19,219 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:19,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:19,234 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:19,248 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:23:19,249 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:19,251 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:23:19,252 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6528036c-ffd2-42ba-9a48-c9faf44e06be/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:19,270 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:23:19,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:23:19,341 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:23:19,343 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:23:19,343 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:23:19,343 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:23:19,343 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:23:19,343 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:23:19,343 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:23:19,343 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:23:19,343 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:23:19,343 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-28 13:23:19,343 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:23:19,343 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:23:19,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:23:19,416 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:23:19,416 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:23:19,416 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 [2018-11-28 13:23:19,417 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:19,417 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:23:19,417 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:19,417 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:19,417 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:19,418 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:23:19,418 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:23:19,418 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:23:19,419 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 [2018-11-28 13:23:19,419 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:19,419 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:23:19,419 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:19,419 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:19,419 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:19,420 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:23:19,420 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:23:19,420 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:23:19,421 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 [2018-11-28 13:23:19,421 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:19,421 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:23:19,421 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:19,421 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:19,421 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:19,422 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:23:19,422 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:23:19,422 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:23:19,422 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 [2018-11-28 13:23:19,423 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:19,423 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:19,423 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:19,423 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:19,424 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:23:19,424 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:23:19,426 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:23:19,426 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 [2018-11-28 13:23:19,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:23:19,426 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:23:19,426 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:23:19,427 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:23:19,430 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:23:19,430 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:23:19,450 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:23:19,461 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-28 13:23:19,462 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-28 13:23:19,462 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:23:19,463 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 13:23:19,463 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:23:19,463 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-28 13:23:19,470 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 13:23:19,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:19,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:19,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:19,518 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-28 13:23:19,518 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-28 13:23:19,544 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2018-11-28 13:23:19,545 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 [2018-11-28 13:23:19,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:23:19,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-28 13:23:19,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-28 13:23:19,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:19,546 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 13:23:19,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:19,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:19,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:19,578 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-28 13:23:19,578 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-28 13:23:19,599 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2018-11-28 13:23:19,599 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 [2018-11-28 13:23:19,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:23:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-28 13:23:19,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-28 13:23:19,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:19,600 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 13:23:19,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:23:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:19,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:23:19,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:23:19,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:23:19,623 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-28 13:23:19,623 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-28 13:23:19,644 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 14 states and 16 transitions. Complement of second has 5 states. [2018-11-28 13:23:19,645 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 [2018-11-28 13:23:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:23:19,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-28 13:23:19,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-28 13:23:19,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:19,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2018-11-28 13:23:19,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:19,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 13:23:19,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:23:19,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2018-11-28 13:23:19,647 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:23:19,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2018-11-28 13:23:19,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:23:19,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:23:19,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:23:19,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:23:19,647 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:23:19,647 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:23:19,647 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:23:19,647 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 13:23:19,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:23:19,648 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:23:19,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 13:23:19,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:23:19 BoogieIcfgContainer [2018-11-28 13:23:19,653 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:23:19,653 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:23:19,653 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:23:19,654 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:23:19,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:23:03" (3/4) ... [2018-11-28 13:23:19,657 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:23:19,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:23:19,657 INFO L168 Benchmark]: Toolchain (without parser) took 16062.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 957.6 MB in the beginning and 1.0 GB in the end (delta: -87.2 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:19,658 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:23:19,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.77 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:19,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.55 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:23:19,659 INFO L168 Benchmark]: Boogie Preprocessor took 12.64 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 944.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:19,660 INFO L168 Benchmark]: RCFGBuilder took 191.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:19,660 INFO L168 Benchmark]: BuchiAutomizer took 15699.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:23:19,661 INFO L168 Benchmark]: Witness Printer took 3.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:23:19,663 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 131.77 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.9 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 20.55 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.64 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 944.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15699.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * y + 2147483645 and consists of 5 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.6s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 15.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 37 SDslu, 11 SDs, 0 SdLazy, 108 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax158 hnf98 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf102 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 13.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...