./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.02_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.02_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 c3e40038ef85c6e1a2de0a898912241a10300c47 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:09:43,968 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:09:43,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:09:43,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:09:43,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:09:43,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:09:43,982 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:09:43,984 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:09:43,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:09:43,986 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:09:43,987 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:09:43,987 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:09:43,988 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:09:43,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:09:43,990 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:09:43,990 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:09:43,991 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:09:43,992 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:09:43,994 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:09:43,995 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:09:43,996 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:09:43,999 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:09:44,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:09:44,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:09:44,000 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:09:44,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:09:44,002 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:09:44,002 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:09:44,003 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:09:44,003 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:09:44,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:09:44,004 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:09:44,004 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:09:44,004 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:09:44,008 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:09:44,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:09:44,011 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:09:44,028 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:09:44,028 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:09:44,029 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:09:44,030 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:09:44,031 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:09:44,031 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:09:44,031 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:09:44,031 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:09:44,031 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:09:44,032 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:09:44,032 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:09:44,032 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:09:44,032 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:09:44,032 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:09:44,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:09:44,032 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:09:44,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:09:44,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:09:44,033 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:09:44,033 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:09:44,033 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:09:44,033 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:09:44,033 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:09:44,034 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:09:44,034 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:09:44,034 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:09:44,034 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:09:44,035 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:09:44,035 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_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 -> c3e40038ef85c6e1a2de0a898912241a10300c47 [2018-10-27 06:09:44,080 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:09:44,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:09:44,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:09:44,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:09:44,094 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:09:44,095 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.02_true-termination_true-no-overflow.c [2018-10-27 06:09:44,140 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/data/7b15b5662/71fcca71b38b4d6eb5732ebae878b317/FLAGdcd2406e0 [2018-10-27 06:09:44,512 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:09:44,513 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/sv-benchmarks/c/termination-restricted-15/c.02_true-termination_true-no-overflow.c [2018-10-27 06:09:44,517 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/data/7b15b5662/71fcca71b38b4d6eb5732ebae878b317/FLAGdcd2406e0 [2018-10-27 06:09:44,527 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/bin-2019/uautomizer/data/7b15b5662/71fcca71b38b4d6eb5732ebae878b317 [2018-10-27 06:09:44,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:09:44,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:09:44,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:09:44,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:09:44,535 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:09:44,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3c1dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44, skipping insertion in model container [2018-10-27 06:09:44,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:09:44,557 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:09:44,673 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:09:44,675 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:09:44,686 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:09:44,696 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:09:44,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44 WrapperNode [2018-10-27 06:09:44,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:09:44,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:09:44,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:09:44,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:09:44,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:09:44,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:09:44,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:09:44,726 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:09:44,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... [2018-10-27 06:09:44,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:09:44,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:09:44,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:09:44,743 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:09:44,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:09:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:09:45,047 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:09:45,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:09:45 BoogieIcfgContainer [2018-10-27 06:09:45,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:09:45,048 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:09:45,048 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:09:45,051 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:09:45,052 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:09:45,052 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:09:44" (1/3) ... [2018-10-27 06:09:45,053 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1451e5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:09:45, skipping insertion in model container [2018-10-27 06:09:45,053 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:09:45,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:09:44" (2/3) ... [2018-10-27 06:09:45,054 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1451e5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:09:45, skipping insertion in model container [2018-10-27 06:09:45,054 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:09:45,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:09:45" (3/3) ... [2018-10-27 06:09:45,056 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.02_true-termination_true-no-overflow.c [2018-10-27 06:09:45,112 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:09:45,112 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:09:45,113 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:09:45,113 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:09:45,113 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:09:45,113 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:09:45,113 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:09:45,113 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:09:45,113 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:09:45,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-10-27 06:09:45,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:09:45,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:45,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:45,168 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:09:45,168 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:09:45,168 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:09:45,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-10-27 06:09:45,170 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:09:45,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:45,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:45,170 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:09:45,170 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:09:45,178 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L10-3true [2018-10-27 06:09:45,179 INFO L795 eck$LassoCheckResult]: Loop: 8#L10-3true assume true; 12#L10-1true assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := main_~x~0 + 1;main_~y~0 := 1; 4#L13-3true assume !true; 13#L13-4true main_~x~0 := main_~x~0 - 2; 8#L10-3true [2018-10-27 06:09:45,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:45,186 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-10-27 06:09:45,188 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:45,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:45,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:45,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:45,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:45,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-10-27 06:09:45,274 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:45,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:45,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:45,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:45,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:09:45,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 06:09:45,317 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:09:45,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 06:09:45,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 06:09:45,335 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-10-27 06:09:45,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:09:45,343 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-27 06:09:45,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:09:45,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-10-27 06:09:45,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:09:45,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-10-27 06:09:45,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:09:45,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-10-27 06:09:45,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-10-27 06:09:45,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:09:45,356 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:09:45,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-10-27 06:09:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-27 06:09:45,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-27 06:09:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-10-27 06:09:45,385 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:09:45,385 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-10-27 06:09:45,385 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:09:45,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-10-27 06:09:45,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:09:45,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:45,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:45,386 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:09:45,386 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-10-27 06:09:45,387 INFO L793 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 31#L10-3 [2018-10-27 06:09:45,387 INFO L795 eck$LassoCheckResult]: Loop: 31#L10-3 assume true; 36#L10-1 assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := main_~x~0 + 1;main_~y~0 := 1; 32#L13-3 assume true; 33#L13-1 assume !(main_~x~0 > main_~y~0); 35#L13-4 main_~x~0 := main_~x~0 - 2; 31#L10-3 [2018-10-27 06:09:45,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:45,387 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-10-27 06:09:45,387 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:45,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:45,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:45,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:45,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:45,399 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-10-27 06:09:45,399 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:45,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:45,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,401 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:09:45,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:45,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:45,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983277, now seen corresponding path program 1 times [2018-10-27 06:09:45,411 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:45,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:45,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:45,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:45,579 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-10-27 06:09:45,624 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:45,625 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:45,626 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:45,626 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:45,626 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:45,626 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:45,626 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:45,626 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:45,626 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration2_Loop [2018-10-27 06:09:45,627 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:45,627 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:45,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:45,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:45,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:45,979 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:45,980 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:45,987 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:45,988 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:46,013 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:46,013 INFO L446 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_9066b8c5-d57f-4270-a042-07b9fa36aa39/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) [2018-10-27 06:09:46,025 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:46,026 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:46,059 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:46,059 INFO L446 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_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:46,064 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:46,064 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:46,087 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:46,087 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:46,109 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:09:46,110 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:46,111 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:46,111 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:46,111 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:46,111 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:09:46,111 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:46,111 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:46,111 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:46,111 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration2_Loop [2018-10-27 06:09:46,112 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:46,112 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:46,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:46,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:46,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:46,235 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:46,239 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:09:46,240 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 [2018-10-27 06:09:46,242 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:46,243 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:46,243 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:46,243 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:46,246 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:46,247 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:46,254 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:46,255 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 [2018-10-27 06:09:46,256 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:46,256 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:46,256 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:46,256 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:46,258 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:46,258 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:46,267 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:46,268 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 [2018-10-27 06:09:46,268 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:46,268 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:46,269 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:46,269 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:46,269 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:46,271 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:46,271 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:46,278 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:09:46,283 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:09:46,283 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-10-27 06:09:46,285 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:09:46,285 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:09:46,286 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:09:46,286 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-10-27 06:09:46,287 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:09:46,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:46,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:46,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:46,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:46,487 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 [2018-10-27 06:09:46,488 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-10-27 06:09:46,573 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 15 transitions. Complement of second has 6 states. [2018-10-27 06:09:46,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-10-27 06:09:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:09:46,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-10-27 06:09:46,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2018-10-27 06:09:46,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:46,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2018-10-27 06:09:46,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:46,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2018-10-27 06:09:46,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:46,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2018-10-27 06:09:46,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:09:46,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2018-10-27 06:09:46,580 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-10-27 06:09:46,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-10-27 06:09:46,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-10-27 06:09:46,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:09:46,581 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-10-27 06:09:46,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-10-27 06:09:46,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-10-27 06:09:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-27 06:09:46,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-10-27 06:09:46,582 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-10-27 06:09:46,582 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-10-27 06:09:46,583 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:09:46,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-10-27 06:09:46,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:09:46,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:46,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:46,584 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:09:46,584 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:09:46,584 INFO L793 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 94#L10-3 assume true; 101#L10-1 assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := main_~x~0 + 1;main_~y~0 := 1; 95#L13-3 [2018-10-27 06:09:46,584 INFO L795 eck$LassoCheckResult]: Loop: 95#L13-3 assume true; 96#L13-1 assume !!(main_~x~0 > main_~y~0);main_~y~0 := main_~y~0 + 1; 95#L13-3 [2018-10-27 06:09:46,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:46,584 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-10-27 06:09:46,585 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:46,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:46,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:46,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:46,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:46,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:46,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-10-27 06:09:46,594 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:46,594 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:46,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:46,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:46,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:46,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:46,601 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-10-27 06:09:46,601 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:46,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:46,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:46,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:46,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:46,627 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:46,627 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:46,627 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:46,628 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:46,628 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:46,628 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:46,628 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:46,628 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:46,628 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:09:46,628 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:46,628 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:46,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:46,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:46,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:46,746 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:46,746 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/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) [2018-10-27 06:09:46,750 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:46,751 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:46,770 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:46,771 INFO L446 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_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:46,774 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:46,775 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:46,792 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:46,792 INFO L446 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_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:46,797 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:46,797 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:46,817 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:46,817 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:46,988 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:09:46,989 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:46,989 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:46,989 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:46,990 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:46,990 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:09:46,990 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:46,990 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:46,990 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:46,990 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:09:46,990 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:46,990 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:46,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:46,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:46,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:47,382 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-27 06:09:47,388 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:47,388 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:09:47,389 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 [2018-10-27 06:09:47,391 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:47,391 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:47,391 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:47,391 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:47,393 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:47,393 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:47,398 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:47,399 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 [2018-10-27 06:09:47,399 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:47,399 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:47,400 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:47,400 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:47,400 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:47,400 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:47,401 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:47,407 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:09:47,415 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:09:47,415 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:09:47,415 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:09:47,415 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:09:47,415 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:09:47,416 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-10-27 06:09:47,416 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:09:47,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:47,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:47,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:47,471 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:09:47,471 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-10-27 06:09:47,485 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 28 states and 34 transitions. Complement of second has 5 states. [2018-10-27 06:09:47,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:09:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:09:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:09:47,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-10-27 06:09:47,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:47,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-10-27 06:09:47,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:47,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-10-27 06:09:47,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:47,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-10-27 06:09:47,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:09:47,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 23 transitions. [2018-10-27 06:09:47,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:09:47,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-10-27 06:09:47,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2018-10-27 06:09:47,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:09:47,490 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2018-10-27 06:09:47,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2018-10-27 06:09:47,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-10-27 06:09:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-27 06:09:47,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-10-27 06:09:47,493 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-10-27 06:09:47,494 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-10-27 06:09:47,494 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:09:47,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-10-27 06:09:47,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:09:47,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:47,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:47,495 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-10-27 06:09:47,495 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:09:47,495 INFO L793 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 170#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 171#L10-3 assume true; 179#L10-1 assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := main_~x~0 + 1;main_~y~0 := 1; 183#L13-3 assume true; 177#L13-1 assume !(main_~x~0 > main_~y~0); 178#L13-4 main_~x~0 := main_~x~0 - 2; 180#L10-3 assume true; 181#L10-1 assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := main_~x~0 + 1;main_~y~0 := 1; 172#L13-3 [2018-10-27 06:09:47,495 INFO L795 eck$LassoCheckResult]: Loop: 172#L13-3 assume true; 173#L13-1 assume !!(main_~x~0 > main_~y~0);main_~y~0 := main_~y~0 + 1; 172#L13-3 [2018-10-27 06:09:47,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:47,496 INFO L82 PathProgramCache]: Analyzing trace with hash 383141811, now seen corresponding path program 2 times [2018-10-27 06:09:47,496 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:47,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:47,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:47,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:47,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:47,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:09:47,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 06:09:47,615 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-10-27 06:09:47,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:47,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 2 times [2018-10-27 06:09:47,615 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:47,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:47,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:47,617 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:09:47,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:47,639 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:47,639 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:47,639 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:47,639 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:47,639 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:47,639 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:47,639 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:47,639 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:47,640 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:09:47,640 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:47,640 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:47,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:47,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:47,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:47,707 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:47,707 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:47,711 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:47,711 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9066b8c5-d57f-4270-a042-07b9fa36aa39/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 [2018-10-27 06:09:47,732 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:47,732 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:47,885 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:09:47,886 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:47,886 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:47,887 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:47,887 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:47,887 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:09:47,887 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:47,887 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:47,887 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:47,887 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:09:47,887 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:47,887 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:47,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:47,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:47,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:47,964 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:47,965 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:09:47,965 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 [2018-10-27 06:09:47,965 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:47,966 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:47,966 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:47,966 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:47,966 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:47,966 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:47,967 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:47,970 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:09:47,973 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:09:47,973 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:09:47,974 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:09:47,974 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:09:47,974 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:09:47,974 INFO L519 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 [] [2018-10-27 06:09:47,974 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:09:48,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:48,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:48,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:48,036 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:09:48,036 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:09:48,063 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 25 states and 29 transitions. Complement of second has 5 states. [2018-10-27 06:09:48,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:09:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:09:48,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:09:48,064 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-10-27 06:09:48,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:48,064 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:09:48,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:48,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:48,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:48,099 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:09:48,099 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:09:48,127 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 25 states and 29 transitions. Complement of second has 5 states. [2018-10-27 06:09:48,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:09:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:09:48,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-10-27 06:09:48,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-10-27 06:09:48,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:48,128 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:09:48,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:48,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:48,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:48,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:48,199 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:09:48,199 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-10-27 06:09:48,232 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 24 states and 29 transitions. Complement of second has 4 states. [2018-10-27 06:09:48,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:09:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:09:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2018-10-27 06:09:48,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2018-10-27 06:09:48,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:48,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2018-10-27 06:09:48,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:48,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2018-10-27 06:09:48,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:48,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2018-10-27 06:09:48,238 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:09:48,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2018-10-27 06:09:48,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:09:48,239 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:09:48,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:09:48,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:09:48,239 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:09:48,239 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:09:48,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 06:09:48,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-27 06:09:48,240 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-10-27 06:09:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:09:48,240 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-10-27 06:09:48,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:09:48,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-10-27 06:09:48,240 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:09:48,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 06:09:48,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:09:48,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:09:48,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:09:48,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:09:48,241 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:09:48,241 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:09:48,241 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:09:48,241 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:09:48,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:09:48,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:09:48,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:09:48,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:09:48 BoogieIcfgContainer [2018-10-27 06:09:48,247 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:09:48,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:09:48,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:09:48,247 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:09:48,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:09:45" (3/4) ... [2018-10-27 06:09:48,251 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:09:48,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:09:48,252 INFO L168 Benchmark]: Toolchain (without parser) took 3721.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 958.6 MB in the beginning and 922.6 MB in the end (delta: 36.0 MB). Peak memory consumption was 167.6 MB. Max. memory is 11.5 GB. [2018-10-27 06:09:48,253 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:09:48,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.44 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 06:09:48,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.09 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:09:48,254 INFO L168 Benchmark]: Boogie Preprocessor took 17.37 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:09:48,255 INFO L168 Benchmark]: RCFGBuilder took 304.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:09:48,255 INFO L168 Benchmark]: BuchiAutomizer took 3198.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.2 MB in the end (delta: 193.6 MB). Peak memory consumption was 193.6 MB. Max. memory is 11.5 GB. [2018-10-27 06:09:48,256 INFO L168 Benchmark]: Witness Printer took 4.43 ms. Allocated memory is still 1.2 GB. Free memory was 926.2 MB in the beginning and 922.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-10-27 06:09:48,260 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.44 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.09 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.37 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 304.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3198.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.2 MB in the end (delta: 193.6 MB). Peak memory consumption was 193.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.43 ms. Allocated memory is still 1.2 GB. Free memory was 926.2 MB in the beginning and 922.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. 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 4 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 44 SDtfs, 34 SDslu, 10 SDs, 0 SdLazy, 39 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf93 smp96 dnf100 smp100 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...