./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/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 2d80b45a01c32727728c3a89e06c1e9a4dc4868b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:07:14,249 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:07:14,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:07:14,257 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:07:14,257 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:07:14,258 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:07:14,259 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:07:14,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:07:14,261 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:07:14,261 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:07:14,262 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:07:14,262 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:07:14,263 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:07:14,263 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:07:14,264 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:07:14,264 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:07:14,265 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:07:14,266 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:07:14,267 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:07:14,268 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:07:14,268 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:07:14,269 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:07:14,270 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:07:14,270 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:07:14,270 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:07:14,271 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:07:14,272 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:07:14,272 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:07:14,273 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:07:14,273 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:07:14,274 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:07:14,274 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:07:14,274 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:07:14,274 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:07:14,275 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:07:14,275 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:07:14,276 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 12:07:14,285 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:07:14,285 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:07:14,286 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:07:14,286 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:07:14,286 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:07:14,286 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:07:14,286 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:07:14,287 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:07:14,287 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:07:14,287 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:07:14,287 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:07:14,287 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:07:14,287 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:07:14,287 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:07:14,288 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:07:14,288 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:07:14,288 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:07:14,288 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:07:14,288 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:07:14,288 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:07:14,289 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:07:14,289 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:07:14,289 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:07:14,289 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:07:14,289 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:07:14,289 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:07:14,290 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:07:14,290 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:07:14,290 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:07:14,290 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_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/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 -> 2d80b45a01c32727728c3a89e06c1e9a4dc4868b [2018-11-28 12:07:14,314 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:07:14,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:07:14,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:07:14,327 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:07:14,327 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:07:14,327 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c [2018-11-28 12:07:14,372 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/data/33ad2c7a9/28f57e3b4a10483fa175ebcb0c462567/FLAG59f62d1b2 [2018-11-28 12:07:14,702 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:07:14,702 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c [2018-11-28 12:07:14,707 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/data/33ad2c7a9/28f57e3b4a10483fa175ebcb0c462567/FLAG59f62d1b2 [2018-11-28 12:07:15,129 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/data/33ad2c7a9/28f57e3b4a10483fa175ebcb0c462567 [2018-11-28 12:07:15,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:07:15,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:07:15,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:07:15,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:07:15,136 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:07:15,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f58cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15, skipping insertion in model container [2018-11-28 12:07:15,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:07:15,152 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:07:15,240 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:07:15,243 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:07:15,254 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:07:15,262 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:07:15,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15 WrapperNode [2018-11-28 12:07:15,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:07:15,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:07:15,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:07:15,263 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:07:15,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:07:15,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:07:15,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:07:15,281 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:07:15,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... [2018-11-28 12:07:15,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:07:15,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:07:15,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:07:15,292 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:07:15,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:07:15,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:07:15,452 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:07:15,452 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 12:07:15,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:07:15 BoogieIcfgContainer [2018-11-28 12:07:15,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:07:15,452 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:07:15,453 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:07:15,455 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:07:15,455 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:07:15,455 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:07:15" (1/3) ... [2018-11-28 12:07:15,456 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@afb7555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:07:15, skipping insertion in model container [2018-11-28 12:07:15,456 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:07:15,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:07:15" (2/3) ... [2018-11-28 12:07:15,456 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@afb7555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:07:15, skipping insertion in model container [2018-11-28 12:07:15,456 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:07:15,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:07:15" (3/3) ... [2018-11-28 12:07:15,458 INFO L375 chiAutomizerObserver]: Analyzing ICFG Log_true-termination_true-no-overflow.c [2018-11-28 12:07:15,495 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:07:15,495 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:07:15,495 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:07:15,496 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:07:15,496 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:07:15,496 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:07:15,496 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:07:15,496 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:07:15,496 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:07:15,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:07:15,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:07:15,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:07:15,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:07:15,521 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:07:15,521 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:07:15,522 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:07:15,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:07:15,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:07:15,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:07:15,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:07:15,523 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:07:15,523 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:07:15,527 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 6#L13-2true [2018-11-28 12:07:15,528 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 3#L17-2true assume !(main_~xtmp~0 > 1); 10#L17-3true main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 6#L13-2true [2018-11-28 12:07:15,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:15,532 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 12:07:15,533 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:15,533 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:15,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:07:15,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:15,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:15,595 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-28 12:07:15,595 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:15,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:15,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:07:15,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:15,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:07:15,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:07:15,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:07:15,637 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:07:15,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:07:15,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:07:15,650 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-11-28 12:07:15,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:07:15,669 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-11-28 12:07:15,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:07:15,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-28 12:07:15,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 12:07:15,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2018-11-28 12:07:15,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 12:07:15,674 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 12:07:15,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2018-11-28 12:07:15,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:07:15,675 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-28 12:07:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2018-11-28 12:07:15,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-11-28 12:07:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 12:07:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2018-11-28 12:07:15,694 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-28 12:07:15,694 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-28 12:07:15,694 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:07:15,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2018-11-28 12:07:15,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 12:07:15,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:07:15,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:07:15,695 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:07:15,695 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 12:07:15,696 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 29#L13-2 [2018-11-28 12:07:15,696 INFO L796 eck$LassoCheckResult]: Loop: 29#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 26#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 27#L17-2 assume !(main_~xtmp~0 > 1); 30#L17-3 main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 29#L13-2 [2018-11-28 12:07:15,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:15,696 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 12:07:15,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:15,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:15,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:07:15,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:15,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:15,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2018-11-28 12:07:15,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:15,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:15,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,704 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:07:15,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:15,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:15,717 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2018-11-28 12:07:15,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:15,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:15,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:07:15,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:15,823 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:07:15,824 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:07:15,824 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:07:15,824 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:07:15,824 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:07:15,824 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:15,824 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:07:15,824 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:07:15,825 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 12:07:15,825 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:07:15,825 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:07:15,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:15,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:15,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:15,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:15,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,006 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:07:16,007 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,013 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,013 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:16,038 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:07:16,038 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,041 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,041 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:16,060 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:07:16,060 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,066 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,066 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:16,069 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:07:16,069 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=1} Honda state: {ULTIMATE.start_main_~restmp~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,089 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,090 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,109 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:07:16,109 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:16,122 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:07:16,122 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,138 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,138 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,157 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:07:16,157 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:16,434 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:07:16,436 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:07:16,436 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:07:16,436 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:07:16,436 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:07:16,436 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:07:16,436 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,436 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:07:16,437 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:07:16,437 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 12:07:16,437 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:07:16,437 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:07:16,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,499 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:07:16,502 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:07:16,503 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:16,505 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:16,505 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:16,505 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:16,505 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:16,508 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:07:16,508 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:07:16,514 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:07:16,515 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:16,515 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:16,516 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:16,516 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:16,516 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:16,519 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:07:16,520 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:07:16,527 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:07:16,528 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:16,529 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:16,530 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:07:16,530 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:16,530 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:16,530 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:16,531 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:07:16,531 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:07:16,535 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:07:16,536 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:16,536 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:16,536 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:07:16,539 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:16,539 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:16,539 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:16,540 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:07:16,540 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:07:16,549 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:07:16,555 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:07:16,555 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:07:16,557 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:07:16,557 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:07:16,557 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:07:16,558 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 12:07:16,559 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:07:16,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:16,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:16,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:07:16,634 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-28 12:07:16,635 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-28 12:07:16,706 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 9 states and 12 transitions. Complement of second has 6 states. [2018-11-28 12:07:16,706 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 [2018-11-28 12:07:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 12:07:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2018-11-28 12:07:16,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 12:07:16,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:16,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 12:07:16,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:16,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2018-11-28 12:07:16,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:16,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2018-11-28 12:07:16,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:07:16,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2018-11-28 12:07:16,711 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 12:07:16,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 12:07:16,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-28 12:07:16,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:07:16,711 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 12:07:16,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-28 12:07:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-28 12:07:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 12:07:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-28 12:07:16,712 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 12:07:16,712 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 12:07:16,713 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 12:07:16,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-28 12:07:16,713 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:07:16,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:07:16,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:07:16,714 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 12:07:16,714 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 12:07:16,714 INFO L794 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 85#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 81#L17-2 [2018-11-28 12:07:16,714 INFO L796 eck$LassoCheckResult]: Loop: 81#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 81#L17-2 [2018-11-28 12:07:16,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:16,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 12:07:16,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:16,715 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:16,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:16,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:07:16,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:16,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:16,723 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-28 12:07:16,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:16,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:16,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:16,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:07:16,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:16,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:16,729 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-28 12:07:16,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:16,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:16,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:16,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:07:16,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:16,749 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:07:16,749 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:07:16,750 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:07:16,750 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:07:16,750 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:07:16,750 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,750 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:07:16,750 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:07:16,750 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 12:07:16,750 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:07:16,750 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:07:16,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:16,832 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:07:16,832 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,842 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:16,864 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:07:16,864 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,868 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,903 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:07:16,903 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:16,915 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:07:16,915 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=0}, {ULTIMATE.start_main_~restmp~0=-1}, {ULTIMATE.start_main_~restmp~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,937 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,937 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:16,957 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:07:16,957 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,963 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:16,963 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:16,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:07:16,995 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:17,013 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:07:17,015 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:07:17,015 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:07:17,015 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:07:17,015 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:07:17,015 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:07:17,015 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:17,015 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:07:17,016 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:07:17,016 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 12:07:17,016 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:07:17,016 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:07:17,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,064 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:07:17,064 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:07:17,065 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:17,065 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:17,065 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:17,066 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:17,066 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:17,067 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:07:17,067 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:07:17,070 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:07:17,071 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:17,071 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:17,072 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:07:17,072 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:17,073 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:17,073 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:17,073 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:07:17,073 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:07:17,076 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:07:17,076 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:17,076 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:17,077 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:17,077 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:17,077 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:17,078 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:07:17,078 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:07:17,085 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:07:17,086 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:17,086 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:17,086 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:07:17,086 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:17,087 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:17,087 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:17,087 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:07:17,087 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:07:17,090 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:07:17,092 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:07:17,093 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:07:17,093 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:07:17,093 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:07:17,093 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:07:17,093 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-28 12:07:17,094 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:07:17,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,113 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:17,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:07:17,116 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 [2018-11-28 12:07:17,116 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-28 12:07:17,125 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2018-11-28 12:07:17,126 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 [2018-11-28 12:07:17,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:07:17,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 12:07:17,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 12:07:17,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:17,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 12:07:17,126 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:17,126 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 12:07:17,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:17,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-11-28 12:07:17,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:07:17,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2018-11-28 12:07:17,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 12:07:17,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-28 12:07:17,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2018-11-28 12:07:17,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:07:17,128 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2018-11-28 12:07:17,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2018-11-28 12:07:17,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2018-11-28 12:07:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 12:07:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-28 12:07:17,129 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 12:07:17,129 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 12:07:17,129 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 12:07:17,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-28 12:07:17,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:07:17,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:07:17,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:07:17,129 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-28 12:07:17,129 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 12:07:17,130 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 136#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 133#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 134#L17-2 assume !(main_~xtmp~0 > 1); 138#L17-3 main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 137#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 132#L17-2 [2018-11-28 12:07:17,130 INFO L796 eck$LassoCheckResult]: Loop: 132#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 132#L17-2 [2018-11-28 12:07:17,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:17,130 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2018-11-28 12:07:17,130 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:17,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:17,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:17,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:07:17,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 12:07:17,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:07:17,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:07:17,146 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 12:07:17,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:17,147 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-28 12:07:17,147 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:07:17,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:07:17,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:17,148 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:07:17,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:07:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:07:17,165 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:07:17,166 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:07:17,166 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:07:17,166 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:07:17,166 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:07:17,166 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:17,166 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:07:17,166 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:07:17,166 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 12:07:17,166 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:07:17,166 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:07:17,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,204 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:07:17,204 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:17,207 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:17,207 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:17,227 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:07:17,227 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:17,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:07:17,230 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2dba34ca-38d3-47a6-b5ef-43e023bc2fb6/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:17,248 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:07:17,248 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:07:17,263 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:07:17,265 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:07:17,265 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:07:17,265 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:07:17,265 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:07:17,265 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:07:17,265 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:07:17,265 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:07:17,265 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:07:17,265 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 12:07:17,265 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:07:17,265 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:07:17,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:07:17,304 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:07:17,304 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:07:17,305 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:17,305 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:17,305 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:17,305 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:17,305 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:17,306 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:07:17,306 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:07:17,309 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:07:17,310 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:07:17,310 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:07:17,310 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:07:17,310 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:07:17,310 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:07:17,311 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:07:17,311 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:07:17,311 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:07:17,314 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:07:17,315 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:07:17,316 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:07:17,316 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:07:17,316 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:07:17,316 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:07:17,316 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-28 12:07:17,317 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:07:17,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:07:17,340 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 [2018-11-28 12:07:17,340 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 12:07:17,348 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2018-11-28 12:07:17,349 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 [2018-11-28 12:07:17,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:07:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 12:07:17,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-28 12:07:17,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:17,350 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 12:07:17,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:07:17,375 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 [2018-11-28 12:07:17,375 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 12:07:17,380 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2018-11-28 12:07:17,381 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 [2018-11-28 12:07:17,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:07:17,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 12:07:17,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-28 12:07:17,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:17,381 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 12:07:17,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:07:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:07:17,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:07:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:07:17,397 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 [2018-11-28 12:07:17,397 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 12:07:17,405 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2018-11-28 12:07:17,405 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 [2018-11-28 12:07:17,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:07:17,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-28 12:07:17,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-28 12:07:17,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:17,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2018-11-28 12:07:17,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:17,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 12:07:17,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:07:17,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2018-11-28 12:07:17,415 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:07:17,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2018-11-28 12:07:17,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:07:17,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:07:17,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:07:17,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:07:17,416 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:07:17,416 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:07:17,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:07:17,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:07:17,416 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-28 12:07:17,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:07:17,417 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 12:07:17,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:07:17,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 12:07:17,417 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:07:17,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:07:17,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:07:17,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:07:17,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:07:17,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:07:17,418 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:07:17,418 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:07:17,418 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:07:17,418 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 12:07:17,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:07:17,418 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:07:17,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 12:07:17,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:07:17 BoogieIcfgContainer [2018-11-28 12:07:17,424 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:07:17,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:07:17,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:07:17,425 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:07:17,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:07:15" (3/4) ... [2018-11-28 12:07:17,428 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:07:17,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:07:17,428 INFO L168 Benchmark]: Toolchain (without parser) took 2296.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:07:17,429 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:07:17,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.49 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:07:17,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.74 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:07:17,430 INFO L168 Benchmark]: Boogie Preprocessor took 10.71 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 939.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:07:17,431 INFO L168 Benchmark]: RCFGBuilder took 160.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:07:17,431 INFO L168 Benchmark]: BuchiAutomizer took 1971.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -5.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:07:17,431 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:07:17,433 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.49 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.74 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.71 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 939.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 160.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1971.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -5.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 2.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 x and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 26 SDtfs, 21 SDslu, 6 SDs, 0 SdLazy, 35 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax169 hnf99 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...