./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_2_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_2_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26479c976733891620a412c0502cdbc3992d9719 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:06:09,908 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:06:09,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:06:09,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:06:09,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:06:09,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:06:09,922 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:06:09,923 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:06:09,924 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:06:09,925 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:06:09,926 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:06:09,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:06:09,927 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:06:09,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:06:09,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:06:09,929 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:06:09,931 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:06:09,932 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:06:09,934 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:06:09,936 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:06:09,937 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:06:09,937 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:06:09,940 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:06:09,940 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:06:09,940 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:06:09,941 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:06:09,943 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:06:09,943 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:06:09,944 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:06:09,945 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:06:09,945 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:06:09,946 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:06:09,947 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:06:09,947 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:06:09,948 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:06:09,948 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:06:09,949 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 11:06:09,960 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:06:09,961 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:06:09,962 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:06:09,962 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:06:09,962 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:06:09,963 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:06:09,963 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:06:09,963 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:06:09,963 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:06:09,963 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:06:09,963 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:06:09,964 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:06:09,964 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:06:09,964 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:06:09,964 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:06:09,964 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:06:09,965 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:06:09,965 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:06:09,965 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:06:09,965 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:06:09,965 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:06:09,965 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:06:09,966 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:06:09,966 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:06:09,966 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:06:09,968 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:06:09,968 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:06:09,969 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:06:09,969 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:06:09,969 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:06:09,969 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:06:09,970 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:06:09,970 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_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26479c976733891620a412c0502cdbc3992d9719 [2018-11-18 11:06:10,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:06:10,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:06:10,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:06:10,016 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:06:10,016 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:06:10,017 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/../../sv-benchmarks/c/loops/for_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-18 11:06:10,074 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/data/93ed80241/9d03008fab4c4888bfa048424fc932f5/FLAG6a961b47a [2018-11-18 11:06:10,439 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:06:10,439 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/sv-benchmarks/c/loops/for_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-18 11:06:10,445 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/data/93ed80241/9d03008fab4c4888bfa048424fc932f5/FLAG6a961b47a [2018-11-18 11:06:10,455 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/data/93ed80241/9d03008fab4c4888bfa048424fc932f5 [2018-11-18 11:06:10,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:06:10,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:06:10,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:06:10,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:06:10,465 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:06:10,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fd3e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10, skipping insertion in model container [2018-11-18 11:06:10,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:06:10,491 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:06:10,601 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:06:10,604 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:06:10,614 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:06:10,624 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:06:10,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10 WrapperNode [2018-11-18 11:06:10,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:06:10,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:06:10,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:06:10,625 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:06:10,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:06:10,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:06:10,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:06:10,650 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:06:10,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... [2018-11-18 11:06:10,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:06:10,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:06:10,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:06:10,666 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:06:10,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:06:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:06:10,902 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:06:10,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:06:10 BoogieIcfgContainer [2018-11-18 11:06:10,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:06:10,903 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:06:10,903 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:06:10,907 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:06:10,908 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:06:10,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:06:10" (1/3) ... [2018-11-18 11:06:10,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@413c6ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:06:10, skipping insertion in model container [2018-11-18 11:06:10,910 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:06:10,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:06:10" (2/3) ... [2018-11-18 11:06:10,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@413c6ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:06:10, skipping insertion in model container [2018-11-18 11:06:10,910 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:06:10,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:06:10" (3/3) ... [2018-11-18 11:06:10,912 INFO L375 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_2_true-unreach-call_false-termination.i [2018-11-18 11:06:10,973 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:06:10,973 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:06:10,974 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:06:10,974 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:06:10,974 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:06:10,974 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:06:10,974 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:06:10,974 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:06:10,974 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:06:10,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-18 11:06:11,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 11:06:11,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:06:11,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:06:11,018 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 11:06:11,018 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:06:11,019 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:06:11,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-18 11:06:11,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 11:06:11,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:06:11,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:06:11,021 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 11:06:11,021 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:06:11,030 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 15#L14true assume !!(main_~n~0 > 0);main_~i~0 := 0; 9#L15-4true [2018-11-18 11:06:11,030 INFO L796 eck$LassoCheckResult]: Loop: 9#L15-4true assume true; 16#L15-1true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 17#L4true assume !(0 == __VERIFIER_assert_~cond); 13#L4-2true assume { :end_inline___VERIFIER_assert } true; 11#L15-3true main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2; 9#L15-4true [2018-11-18 11:06:11,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:06:11,037 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2018-11-18 11:06:11,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:06:11,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:06:11,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:06:11,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:06:11,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:06:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:06:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:06:11,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:06:11,129 INFO L82 PathProgramCache]: Analyzing trace with hash 39287475, now seen corresponding path program 1 times [2018-11-18 11:06:11,129 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:06:11,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:06:11,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:06:11,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:06:11,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:06:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:06:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:06:11,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:06:11,147 INFO L82 PathProgramCache]: Analyzing trace with hash 178615280, now seen corresponding path program 1 times [2018-11-18 11:06:11,147 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:06:11,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:06:11,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:06:11,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:06:11,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:06:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:06:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:06:11,212 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:06:11,213 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:06:11,213 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:06:11,213 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:06:11,213 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:06:11,213 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:06:11,213 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:06:11,214 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:06:11,214 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_2_true-unreach-call_false-termination.i_Iteration1_Loop [2018-11-18 11:06:11,214 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:06:11,214 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:06:11,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,391 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:06:11,392 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,399 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,399 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,410 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,410 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,430 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,452 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:06:11,452 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,477 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,478 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=-1}, {ULTIMATE.start_main_~i~0=-5}, {ULTIMATE.start_main_~i~0=7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,497 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,497 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,500 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,500 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-18 11:06:11,544 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:06:11,544 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:06:11,544 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:06:11,545 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:06:11,545 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:06:11,545 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:06:11,545 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:06:11,545 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:06:11,545 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_2_true-unreach-call_false-termination.i_Iteration1_Lasso [2018-11-18 11:06:11,545 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:06:11,546 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:06:11,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:06:11,730 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:06:11,730 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,733 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,733 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,737 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,737 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,767 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,768 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,790 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:06:11,790 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,816 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,817 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=-1}, {ULTIMATE.start_main_~i~0=-5}, {ULTIMATE.start_main_~i~0=7}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,847 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,847 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,850 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,850 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,886 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,886 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,891 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,891 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,911 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,930 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,931 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=0} Honda state: {ULTIMATE.start_main_~n~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,934 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,934 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,936 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,937 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/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 [2018-11-18 11:06:11,956 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:06:11,956 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:06:11,959 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:06:11,959 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-18 11:06:11,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:06:11 BoogieIcfgContainer [2018-11-18 11:06:11,998 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:06:11,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:06:11,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:06:11,999 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:06:12,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:06:10" (3/4) ... [2018-11-18 11:06:12,003 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 11:06:12,035 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c5c59594-51c8-49d1-bd3d-c35b1503363f/bin-2019/uautomizer/witness.graphml [2018-11-18 11:06:12,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:06:12,036 INFO L168 Benchmark]: Toolchain (without parser) took 1575.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 959.8 MB in the beginning and 970.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 105.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:06:12,038 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:06:12,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.02 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:06:12,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.26 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:06:12,039 INFO L168 Benchmark]: Boogie Preprocessor took 15.92 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:06:12,039 INFO L168 Benchmark]: RCFGBuilder took 237.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:06:12,040 INFO L168 Benchmark]: BuchiAutomizer took 1095.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 970.8 MB in the end (delta: 128.2 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:06:12,040 INFO L168 Benchmark]: Witness Printer took 36.60 ms. Allocated memory is still 1.1 GB. Free memory is still 970.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:06:12,043 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.02 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.26 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.92 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 237.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -152.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1095.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 970.8 MB in the end (delta: 128.2 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. * Witness Printer took 36.60 ms. Allocated memory is still 1.1 GB. Free memory is still 970.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite144 ukn100 eq199 hnf92 smp49 dnf95 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19af262b=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@63a00348=0, x=0, n=0, y=0, i=0} State at position 1 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19af262b=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@63a00348=0, x=0, n=1, y=0, i=0} For i>1, the state at position i is {cond=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19af262b=0 + sum_{k=0}^i 0, \old(cond)=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@63a00348=0 + sum_{k=0}^i 0, x=0 + sum_{k=0}^i 0, n=1 + sum_{k=0}^i 0, y=0 + sum_{k=0}^i 0, i=0 + sum_{k=0}^i -1 + -5 + 7} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] unsigned int i=0; [L12] int x=0, y=0; [L13] int n=__VERIFIER_nondet_int(); [L14] COND FALSE !(!(n>0)) [L15] i=0 Loop: [L15] COND TRUE 1 [L17] CALL __VERIFIER_assert(x==0) [L4] COND FALSE, RET !(!(cond)) [L17] __VERIFIER_assert(x==0) [L15] i++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...