./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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/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_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/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 0.1.23-0cd3be1 [2018-11-28 10:33:45,081 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:33:45,083 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:33:45,091 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:33:45,091 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:33:45,092 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:33:45,093 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:33:45,094 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:33:45,095 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:33:45,095 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:33:45,096 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:33:45,096 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:33:45,097 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:33:45,097 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:33:45,098 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:33:45,098 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:33:45,099 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:33:45,100 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:33:45,101 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:33:45,102 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:33:45,103 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:33:45,104 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:33:45,105 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:33:45,106 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:33:45,106 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:33:45,106 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:33:45,107 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:33:45,108 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:33:45,108 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:33:45,109 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:33:45,109 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:33:45,109 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:33:45,110 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:33:45,110 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:33:45,110 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:33:45,111 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:33:45,111 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 10:33:45,121 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:33:45,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:33:45,123 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:33:45,123 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:33:45,123 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:33:45,123 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 10:33:45,123 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 10:33:45,123 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 10:33:45,123 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 10:33:45,123 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 10:33:45,124 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 10:33:45,124 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:33:45,124 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:33:45,124 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:33:45,124 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:33:45,124 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 10:33:45,124 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 10:33:45,124 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 10:33:45,125 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:33:45,125 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 10:33:45,125 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:33:45,125 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 10:33:45,125 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:33:45,125 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:33:45,125 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 10:33:45,126 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:33:45,126 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:33:45,126 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 10:33:45,127 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 10:33:45,127 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_19988f2c-cca0-4777-bf7e-4d890564a961/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 [2018-11-28 10:33:45,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:33:45,158 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:33:45,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:33:45,161 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:33:45,162 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:33:45,162 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-11-28 10:33:45,206 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/data/fbd16aa74/f167fc194e2b4544b0686daaefa33210/FLAGbe37be973 [2018-11-28 10:33:45,511 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:33:45,512 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-11-28 10:33:45,516 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/data/fbd16aa74/f167fc194e2b4544b0686daaefa33210/FLAGbe37be973 [2018-11-28 10:33:45,527 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/data/fbd16aa74/f167fc194e2b4544b0686daaefa33210 [2018-11-28 10:33:45,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:33:45,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:33:45,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:45,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:33:45,533 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:33:45,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b52991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45, skipping insertion in model container [2018-11-28 10:33:45,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:33:45,552 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:33:45,649 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:45,652 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:33:45,661 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:45,669 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:33:45,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45 WrapperNode [2018-11-28 10:33:45,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:45,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:33:45,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:33:45,670 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:33:45,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:33:45,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:33:45,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:33:45,690 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:33:45,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... [2018-11-28 10:33:45,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:33:45,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:33:45,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:33:45,703 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:33:45,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:33:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:33:45,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:33:45,860 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:33:45,861 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 10:33:45,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:45 BoogieIcfgContainer [2018-11-28 10:33:45,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:33:45,861 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 10:33:45,862 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 10:33:45,864 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 10:33:45,864 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:33:45,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 10:33:45" (1/3) ... [2018-11-28 10:33:45,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58f84fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:33:45, skipping insertion in model container [2018-11-28 10:33:45,865 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:33:45,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:45" (2/3) ... [2018-11-28 10:33:45,866 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58f84fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:33:45, skipping insertion in model container [2018-11-28 10:33:45,866 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:33:45,866 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:45" (3/3) ... [2018-11-28 10:33:45,868 INFO L375 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-11-28 10:33:45,905 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:33:45,905 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 10:33:45,906 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 10:33:45,906 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 10:33:45,906 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:33:45,906 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:33:45,906 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 10:33:45,906 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:33:45,906 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 10:33:45,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 10:33:45,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:33:45,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:33:45,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:33:45,930 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:33:45,930 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:33:45,930 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 10:33:45,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 10:33:45,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 10:33:45,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:33:45,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:33:45,932 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 10:33:45,932 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 10:33:45,938 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~y1~0, main_~y2~0;havoc main_~y1~0;havoc main_~y2~0;main_~y1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y2~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L20true assume main_~y1~0 >= 0 && main_~y2~0 >= 0; 10#L22-2true [2018-11-28 10:33:45,939 INFO L796 eck$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 [2018-11-28 10:33:45,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:45,943 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-28 10:33:45,945 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:45,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:45,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:45,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:45,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:46,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:46,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-11-28 10:33:46,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:46,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:46,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:46,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:46,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:46,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:46,020 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-28 10:33:46,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:46,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:46,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:46,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:46,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:46,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 10:33:46 BoogieIcfgContainer [2018-11-28 10:33:46,101 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 10:33:46,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:33:46,101 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:33:46,101 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:33:46,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:45" (3/4) ... [2018-11-28 10:33:46,104 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 10:33:46,133 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_19988f2c-cca0-4777-bf7e-4d890564a961/bin-2019/uautomizer/witness.graphml [2018-11-28 10:33:46,133 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:33:46,133 INFO L168 Benchmark]: Toolchain (without parser) took 603.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -137.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:46,134 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:46,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.04 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:46,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.65 ms. Allocated memory is still 1.0 GB. Free memory is still 943.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:46,136 INFO L168 Benchmark]: Boogie Preprocessor took 12.44 ms. Allocated memory is still 1.0 GB. Free memory was 943.2 MB in the beginning and 940.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:46,136 INFO L168 Benchmark]: RCFGBuilder took 158.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -177.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:46,137 INFO L168 Benchmark]: BuchiAutomizer took 239.23 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:46,138 INFO L168 Benchmark]: Witness Printer took 31.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:46,141 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.04 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.2 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 19.65 ms. Allocated memory is still 1.0 GB. Free memory is still 943.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.44 ms. Allocated memory is still 1.0 GB. Free memory was 943.2 MB in the beginning and 940.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 158.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -177.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 239.23 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 31.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s 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@48ebd08b=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fe90aba=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...