./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/Loop_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-restricted-15/Loop_false-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 079a94391776bb57925fadb38be78dd5e66e0a82 ................................................................................................................................................................................................................................................................. 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 0.1.24-91b1670 [2018-11-28 23:17:14,929 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:17:14,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:17:14,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:17:14,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:17:14,949 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:17:14,953 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:17:14,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:17:14,959 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:17:14,959 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:17:14,960 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:17:14,961 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:17:14,962 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:17:14,964 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:17:14,966 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:17:14,969 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:17:14,970 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:17:14,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:17:14,977 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:17:14,982 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:17:14,987 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:17:14,988 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:17:14,992 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:17:14,993 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:17:14,993 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:17:14,994 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:17:14,999 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:17:15,000 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:17:15,001 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:17:15,002 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:17:15,002 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:17:15,002 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:17:15,003 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:17:15,003 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:17:15,004 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:17:15,004 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:17:15,005 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:17:15,020 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:17:15,020 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:17:15,021 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:17:15,022 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:17:15,022 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:17:15,022 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:17:15,022 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:17:15,022 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:17:15,022 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:17:15,023 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:17:15,023 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:17:15,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:17:15,023 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:17:15,023 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:17:15,024 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:17:15,024 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:17:15,024 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:17:15,024 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:17:15,024 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:17:15,024 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:17:15,025 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:17:15,025 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:17:15,025 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:17:15,025 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:17:15,025 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:17:15,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:17:15,026 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:17:15,026 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:17:15,027 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:17:15,027 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 079a94391776bb57925fadb38be78dd5e66e0a82 [2018-11-28 23:17:15,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:17:15,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:17:15,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:17:15,085 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:17:15,085 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:17:15,086 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/Loop_false-termination_true-no-overflow.c [2018-11-28 23:17:15,156 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44e9014bc/7d4d2a143dea44f8bf610d7fd7fef102/FLAG9adddae9c [2018-11-28 23:17:15,647 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:17:15,648 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/Loop_false-termination_true-no-overflow.c [2018-11-28 23:17:15,656 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44e9014bc/7d4d2a143dea44f8bf610d7fd7fef102/FLAG9adddae9c [2018-11-28 23:17:15,988 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44e9014bc/7d4d2a143dea44f8bf610d7fd7fef102 [2018-11-28 23:17:15,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:17:15,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:17:15,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:17:15,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:17:16,003 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:17:16,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:17:15" (1/1) ... [2018-11-28 23:17:16,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b30d2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16, skipping insertion in model container [2018-11-28 23:17:16,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:17:15" (1/1) ... [2018-11-28 23:17:16,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:17:16,040 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:17:16,226 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:17:16,232 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:17:16,252 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:17:16,268 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:17:16,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16 WrapperNode [2018-11-28 23:17:16,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:17:16,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:17:16,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:17:16,270 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:17:16,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:17:16,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:17:16,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:17:16,309 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:17:16,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... [2018-11-28 23:17:16,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:17:16,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:17:16,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:17:16,337 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:17:16,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:17:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:17:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:17:16,610 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:17:16,611 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:17:16,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:16 BoogieIcfgContainer [2018-11-28 23:17:16,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:17:16,612 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:17:16,612 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:17:16,616 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:17:16,617 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:16,617 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:17:15" (1/3) ... [2018-11-28 23:17:16,618 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6299b914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:17:16, skipping insertion in model container [2018-11-28 23:17:16,618 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:16,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:16" (2/3) ... [2018-11-28 23:17:16,619 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6299b914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:17:16, skipping insertion in model container [2018-11-28 23:17:16,619 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:16,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:16" (3/3) ... [2018-11-28 23:17:16,621 INFO L375 chiAutomizerObserver]: Analyzing ICFG Loop_false-termination_true-no-overflow.c [2018-11-28 23:17:16,686 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:17:16,687 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:17:16,687 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:17:16,687 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:17:16,687 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:17:16,687 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:17:16,688 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:17:16,688 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:17:16,688 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:17:16,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 23:17:16,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:16,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:16,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:16,735 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:16,736 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:16,736 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:17:16,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 23:17:16,737 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:16,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:16,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:16,737 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:16,737 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:16,746 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~a~0, main_~b~0, main_~i~0;havoc main_~a~0;havoc main_~b~0;havoc main_~i~0;main_~a~0 := 5;main_~b~0 := 3;main_~i~0 := 0; 6#L13-2true [2018-11-28 23:17:16,746 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~i~0 < 10);main_~i~0 := main_~i~0; 6#L13-2true [2018-11-28 23:17:16,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:16,753 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:17:16,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:16,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:16,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:16,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:16,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:16,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:16,861 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-28 23:17:16,861 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:16,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:16,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:16,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:16,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:16,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:16,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 23:17:16,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:16,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:16,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:16,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:16,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:17,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:17:17 BoogieIcfgContainer [2018-11-28 23:17:17,172 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:17:17,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:17:17,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:17:17,173 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:17:17,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:16" (3/4) ... [2018-11-28 23:17:17,177 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:17:17,219 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:17:17,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:17:17,220 INFO L168 Benchmark]: Toolchain (without parser) took 1226.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:17,225 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:17,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.71 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:17,226 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.41 ms. Allocated memory is still 1.0 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:17,228 INFO L168 Benchmark]: Boogie Preprocessor took 28.06 ms. Allocated memory is still 1.0 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:17,229 INFO L168 Benchmark]: RCFGBuilder took 274.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:17,230 INFO L168 Benchmark]: BuchiAutomizer took 560.84 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:17,230 INFO L168 Benchmark]: Witness Printer took 46.60 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 23:17:17,238 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.71 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.2 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 38.41 ms. Allocated memory is still 1.0 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.06 ms. Allocated memory is still 1.0 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 274.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 560.84 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Witness Printer took 46.60 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 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: 13]: 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 {a=5, \result=0, b=3, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int a; [L7] int b; [L8] int i; [L9] a = 5 [L10] b = 3 [L11] i = 0 Loop: [L13] COND TRUE i < 10 [L13] i = i + 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...