./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_1_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_1_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 84ccfa3799e430dcbaead172aed01f5a507c9465 ................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 07:05:14,970 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:05:14,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:05:14,978 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:05:14,978 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:05:14,979 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:05:14,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:05:14,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:05:14,982 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:05:14,982 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:05:14,983 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:05:14,983 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:05:14,984 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:05:14,985 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:05:14,986 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:05:14,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:05:14,987 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:05:14,988 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:05:14,989 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:05:14,991 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:05:14,991 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:05:14,992 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:05:14,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:05:14,994 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:05:14,994 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:05:14,995 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:05:14,996 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:05:14,996 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:05:14,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:05:14,998 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:05:14,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:05:14,999 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:05:14,999 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:05:14,999 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:05:15,000 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:05:15,000 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:05:15,001 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 07:05:15,011 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:05:15,011 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:05:15,012 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:05:15,012 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:05:15,012 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:05:15,012 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 07:05:15,012 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 07:05:15,013 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 07:05:15,013 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 07:05:15,013 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 07:05:15,013 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 07:05:15,013 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:05:15,013 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:05:15,014 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 07:05:15,014 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:05:15,014 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:05:15,014 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:05:15,014 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 07:05:15,014 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 07:05:15,014 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 07:05:15,015 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:05:15,015 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:05:15,015 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 07:05:15,015 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 07:05:15,015 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:05:15,015 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:05:15,015 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 07:05:15,016 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:05:15,016 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:05:15,016 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 07:05:15,017 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 07:05:15,017 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_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 -> 84ccfa3799e430dcbaead172aed01f5a507c9465 [2018-11-10 07:05:15,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:05:15,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:05:15,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:05:15,049 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:05:15,049 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:05:15,049 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/../../sv-benchmarks/c/loops/for_infinite_loop_1_true-unreach-call_false-termination.i [2018-11-10 07:05:15,087 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/data/680bc2bcb/1c78df38d4d94e42883987912d48b16c/FLAG85a6cc50a [2018-11-10 07:05:15,487 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:05:15,487 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/sv-benchmarks/c/loops/for_infinite_loop_1_true-unreach-call_false-termination.i [2018-11-10 07:05:15,491 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/data/680bc2bcb/1c78df38d4d94e42883987912d48b16c/FLAG85a6cc50a [2018-11-10 07:05:15,500 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/data/680bc2bcb/1c78df38d4d94e42883987912d48b16c [2018-11-10 07:05:15,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:05:15,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:05:15,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:05:15,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:05:15,507 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:05:15,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12305cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15, skipping insertion in model container [2018-11-10 07:05:15,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:05:15,527 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:05:15,616 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:05:15,619 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:05:15,628 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:05:15,636 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:05:15,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15 WrapperNode [2018-11-10 07:05:15,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:05:15,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:05:15,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:05:15,637 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:05:15,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:05:15,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:05:15,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:05:15,662 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:05:15,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... [2018-11-10 07:05:15,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:05:15,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:05:15,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:05:15,676 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:05:15,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:05:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:05:15,875 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:05:15,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:05:15 BoogieIcfgContainer [2018-11-10 07:05:15,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:05:15,876 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 07:05:15,876 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 07:05:15,879 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 07:05:15,880 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:05:15,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 07:05:15" (1/3) ... [2018-11-10 07:05:15,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2104596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 07:05:15, skipping insertion in model container [2018-11-10 07:05:15,882 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:05:15,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:05:15" (2/3) ... [2018-11-10 07:05:15,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2104596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 07:05:15, skipping insertion in model container [2018-11-10 07:05:15,882 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:05:15,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:05:15" (3/3) ... [2018-11-10 07:05:15,884 INFO L375 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_1_true-unreach-call_false-termination.i [2018-11-10 07:05:15,939 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:05:15,940 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 07:05:15,940 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 07:05:15,940 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 07:05:15,941 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:05:15,941 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:05:15,941 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 07:05:15,941 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:05:15,941 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 07:05:15,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-10 07:05:15,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 07:05:15,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:05:15,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:05:15,984 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 07:05:15,984 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-10 07:05:15,984 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 07:05:15,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-10 07:05:15,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 07:05:15,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:05:15,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:05:15,986 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 07:05:15,986 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-10 07:05:15,994 INFO L793 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 15#L14true assume !!(main_~n~0 > 0);main_~i~0 := 0; 9#L15-4true [2018-11-10 07:05:15,994 INFO L795 eck$LassoCheckResult]: Loop: 9#L15-4true assume true; 16#L15-1true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if main_~x~0 == 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 17#L4true assume !(__VERIFIER_assert_~cond == 0); 13#L4-2true assume { :end_inline___VERIFIER_assert } true; 11#L15-3true main_#t~post2 := main_~i~0;main_~i~0 := main_#t~post2 + 1;havoc main_#t~post2; 9#L15-4true [2018-11-10 07:05:15,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:05:15,999 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2018-11-10 07:05:16,001 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:05:16,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:05:16,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:05:16,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:05:16,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:05:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:05:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:05:16,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:05:16,082 INFO L82 PathProgramCache]: Analyzing trace with hash 39287475, now seen corresponding path program 1 times [2018-11-10 07:05:16,082 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:05:16,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:05:16,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:05:16,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:05:16,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:05:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:05:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:05:16,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:05:16,098 INFO L82 PathProgramCache]: Analyzing trace with hash 178615280, now seen corresponding path program 1 times [2018-11-10 07:05:16,098 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:05:16,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:05:16,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:05:16,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:05:16,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:05:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:05:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:05:16,168 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:05:16,169 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:05:16,169 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:05:16,169 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:05:16,169 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 07:05:16,169 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:05:16,169 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:05:16,170 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:05:16,170 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1_true-unreach-call_false-termination.i_Iteration1_Loop [2018-11-10 07:05:16,170 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:05:16,170 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:05:16,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,277 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:05:16,278 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,302 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,302 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,309 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,310 INFO L446 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_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,335 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 07:05:16,352 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,362 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,362 INFO L446 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=-3}] Lambdas: [6, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,378 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,379 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,381 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,381 INFO L446 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: [] [2018-11-10 07:05:16,439 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:05:16,439 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:05:16,439 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:05:16,439 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:05:16,439 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 07:05:16,439 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:05:16,439 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:05:16,440 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:05:16,440 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_1_true-unreach-call_false-termination.i_Iteration1_Lasso [2018-11-10 07:05:16,440 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:05:16,440 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:05:16,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:05:16,533 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:05:16,533 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,542 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,542 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,545 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,545 INFO L446 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_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,563 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,563 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,591 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 07:05:16,591 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,602 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,603 INFO L446 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=-3}] Lambdas: [6, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,619 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,619 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,621 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,622 INFO L446 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_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,647 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,647 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,652 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,652 INFO L446 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_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,677 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,677 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,693 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,693 INFO L446 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_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,697 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,697 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,699 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,699 INFO L446 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_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/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 [2018-11-10 07:05:16,715 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:05:16,715 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:05:16,717 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:05:16,718 INFO L446 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: [] [2018-11-10 07:05:16,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 07:05:16 BoogieIcfgContainer [2018-11-10 07:05:16,747 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 07:05:16,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:05:16,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:05:16,748 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:05:16,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:05:15" (3/4) ... [2018-11-10 07:05:16,750 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-10 07:05:16,776 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fad5c1a8-3e22-4ec7-99bd-ae13ac2d8ffe/bin-2019/uautomizer/witness.graphml [2018-11-10 07:05:16,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:05:16,777 INFO L168 Benchmark]: Toolchain (without parser) took 1274.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 958.1 MB in the beginning and 1.0 GB in the end (delta: -82.0 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:05:16,777 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:05:16,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.30 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:05:16,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.93 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:05:16,778 INFO L168 Benchmark]: Boogie Preprocessor took 13.56 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:05:16,779 INFO L168 Benchmark]: RCFGBuilder took 200.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -211.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:05:16,779 INFO L168 Benchmark]: BuchiAutomizer took 871.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:05:16,780 INFO L168 Benchmark]: Witness Printer took 28.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:05:16,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.30 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 24.93 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.56 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -211.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 871.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. * Witness Printer took 28.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. 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 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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@46150c1b=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@dcd5cc6=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@46150c1b=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@dcd5cc6=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@46150c1b=0 + sum_{k=0}^i 0, \old(cond)=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@dcd5cc6=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*6^k + 5 + 5*k*6^(k-1) + -3} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [6, 1, 1] Mus: [1, 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...