./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 .......................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-08 08:16:48,904 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:16:48,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:16:48,911 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:16:48,911 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:16:48,912 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:16:48,912 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:16:48,913 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:16:48,914 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:16:48,914 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:16:48,915 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:16:48,915 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:16:48,915 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:16:48,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:16:48,916 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:16:48,917 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:16:48,917 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:16:48,918 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:16:48,919 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:16:48,919 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:16:48,920 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:16:48,921 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:16:48,922 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:16:48,922 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:16:48,922 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:16:48,922 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:16:48,923 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:16:48,923 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:16:48,924 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:16:48,924 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:16:48,924 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:16:48,925 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:16:48,925 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:16:48,925 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:16:48,925 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:16:48,926 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:16:48,926 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 08:16:48,933 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:16:48,934 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:16:48,934 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:16:48,934 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:16:48,934 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:16:48,935 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 08:16:48,935 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:16:48,935 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 08:16:48,936 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 08:16:48,936 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 08:16:48,936 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 08:16:48,936 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 08:16:48,936 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:16:48,936 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 08:16:48,936 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:16:48,936 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:16:48,936 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 08:16:48,936 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:16:48,937 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:16:48,937 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 08:16:48,937 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 08:16:48,937 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_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2018-12-08 08:16:48,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:16:48,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:16:48,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:16:48,963 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:16:48,963 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:16:48,963 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-08 08:16:48,996 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/data/e12aab649/53f39b49b0764445b6e696f052e6813a/FLAGbe38de5d2 [2018-12-08 08:16:49,333 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:16:49,333 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-08 08:16:49,337 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/data/e12aab649/53f39b49b0764445b6e696f052e6813a/FLAGbe38de5d2 [2018-12-08 08:16:49,345 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/data/e12aab649/53f39b49b0764445b6e696f052e6813a [2018-12-08 08:16:49,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:16:49,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 08:16:49,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:16:49,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:16:49,350 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:16:49,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49, skipping insertion in model container [2018-12-08 08:16:49,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:16:49,364 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:16:49,443 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:16:49,445 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:16:49,453 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:16:49,460 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:16:49,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49 WrapperNode [2018-12-08 08:16:49,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:16:49,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 08:16:49,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 08:16:49,461 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 08:16:49,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 08:16:49,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:16:49,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:16:49,479 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:16:49,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... [2018-12-08 08:16:49,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:16:49,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:16:49,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:16:49,490 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:16:49,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/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 [2018-12-08 08:16:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:16:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:16:49,627 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:16:49,627 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-08 08:16:49,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:16:49 BoogieIcfgContainer [2018-12-08 08:16:49,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:16:49,628 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 08:16:49,628 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 08:16:49,630 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 08:16:49,631 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:16:49,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 08:16:49" (1/3) ... [2018-12-08 08:16:49,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28dcbf60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 08:16:49, skipping insertion in model container [2018-12-08 08:16:49,632 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:16:49,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:16:49" (2/3) ... [2018-12-08 08:16:49,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28dcbf60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 08:16:49, skipping insertion in model container [2018-12-08 08:16:49,632 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 08:16:49,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:16:49" (3/3) ... [2018-12-08 08:16:49,634 INFO L375 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-08 08:16:49,671 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:16:49,671 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 08:16:49,671 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 08:16:49,672 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 08:16:49,672 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:16:49,672 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:16:49,672 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 08:16:49,672 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:16:49,672 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 08:16:49,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 08:16:49,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 08:16:49,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:16:49,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:16:49,702 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 08:16:49,702 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 08:16:49,702 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 08:16:49,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 08:16:49,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 08:16:49,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 08:16:49,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 08:16:49,703 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 08:16:49,703 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 08:16:49,707 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~y1~0, main_~y2~0;havoc main_~y1~0;havoc main_~y2~0;main_~y1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y2~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L20true assume main_~y1~0 >= 0 && main_~y2~0 >= 0; 10#L22-2true [2018-12-08 08:16:49,708 INFO L796 eck$LassoCheckResult]: Loop: 10#L22-2true assume !!(main_~y1~0 != main_~y2~0); 4#L22true assume main_~y1~0 > main_~y2~0;main_~y1~0 := main_~y1~0 - main_~y2~0; 10#L22-2true [2018-12-08 08:16:49,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:16:49,711 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-12-08 08:16:49,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:16:49,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:16:49,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:16:49,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:16:49,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:16:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:16:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:16:49,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:16:49,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-12-08 08:16:49,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:16:49,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:16:49,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:16:49,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:16:49,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:16:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:16:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:16:49,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:16:49,780 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-12-08 08:16:49,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:16:49,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:16:49,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:16:49,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:16:49,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:16:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:16:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:16:49,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 08:16:49 BoogieIcfgContainer [2018-12-08 08:16:49,853 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 08:16:49,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:16:49,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:16:49,853 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:16:49,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:16:49" (3/4) ... [2018-12-08 08:16:49,856 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-08 08:16:49,883 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0be788b7-e321-4f2a-b2f5-d15c592117c1/bin-2019/uautomizer/witness.graphml [2018-12-08 08:16:49,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:16:49,884 INFO L168 Benchmark]: Toolchain (without parser) took 537.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 11.5 GB. [2018-12-08 08:16:49,885 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:16:49,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 113.25 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 08:16:49,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.78 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:16:49,886 INFO L168 Benchmark]: Boogie Preprocessor took 10.52 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 08:16:49,887 INFO L168 Benchmark]: RCFGBuilder took 138.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-08 08:16:49,887 INFO L168 Benchmark]: BuchiAutomizer took 224.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-12-08 08:16:49,888 INFO L168 Benchmark]: Witness Printer took 30.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 08:16:49,891 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 113.25 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.78 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.52 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 138.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 224.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 30.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 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 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. 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: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 21]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {y2=0, y1=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c3db456=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a42c45b=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int y1, y2; [L18] y1 = __VERIFIER_nondet_int() [L19] y2 = __VERIFIER_nondet_int() [L20] COND TRUE y1 >= 0 && y2 >= 0 Loop: [L21] COND TRUE y1 != y2 [L22] COND TRUE y1 > y2 [L23] y1 = y1 - y2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...