./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/NO_01_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa 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/NO_01_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 ac2b0e405f36a91125e1a90b6b63874c5fe808a1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-2e94e6a [2019-01-01 21:39:24,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:39:24,090 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:39:24,104 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:39:24,104 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:39:24,105 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:39:24,107 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:39:24,109 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:39:24,112 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:39:24,112 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:39:24,113 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:39:24,114 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:39:24,115 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:39:24,117 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:39:24,118 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:39:24,119 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:39:24,120 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:39:24,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:39:24,125 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:39:24,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:39:24,129 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:39:24,131 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:39:24,135 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:39:24,135 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:39:24,135 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:39:24,137 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:39:24,138 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:39:24,139 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:39:24,140 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:39:24,142 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:39:24,142 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:39:24,143 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:39:24,143 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:39:24,143 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:39:24,145 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:39:24,146 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:39:24,146 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:39:24,173 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:39:24,173 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:39:24,175 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:39:24,175 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:39:24,176 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:39:24,176 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:39:24,176 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:39:24,176 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:39:24,177 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:39:24,177 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:39:24,177 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:39:24,177 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:39:24,177 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:39:24,181 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:39:24,182 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:39:24,182 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:39:24,182 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:39:24,182 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:39:24,182 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:39:24,182 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:39:24,183 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:39:24,185 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:39:24,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:39:24,185 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:39:24,185 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:39:24,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:39:24,186 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:39:24,186 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:39:24,187 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:39:24,187 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 -> ac2b0e405f36a91125e1a90b6b63874c5fe808a1 [2019-01-01 21:39:24,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:39:24,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:39:24,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:39:24,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:39:24,257 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:39:24,258 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/NO_01_false-termination_true-no-overflow.c [2019-01-01 21:39:24,329 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b77f07dad/cbf96fa2f6024752ae5eaaeee6c92545/FLAGfbb58eefe [2019-01-01 21:39:24,793 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:39:24,793 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/NO_01_false-termination_true-no-overflow.c [2019-01-01 21:39:24,800 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b77f07dad/cbf96fa2f6024752ae5eaaeee6c92545/FLAGfbb58eefe [2019-01-01 21:39:25,138 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b77f07dad/cbf96fa2f6024752ae5eaaeee6c92545 [2019-01-01 21:39:25,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:39:25,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:39:25,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:39:25,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:39:25,149 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:39:25,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a53a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25, skipping insertion in model container [2019-01-01 21:39:25,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:39:25,192 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:39:25,413 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:39:25,419 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:39:25,440 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:39:25,458 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:39:25,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25 WrapperNode [2019-01-01 21:39:25,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:39:25,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:39:25,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:39:25,460 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:39:25,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:39:25,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:39:25,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:39:25,515 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:39:25,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (1/1) ... [2019-01-01 21:39:25,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:39:25,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:39:25,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:39:25,553 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:39:25,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (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 [2019-01-01 21:39:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:39:25,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:39:25,991 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:39:25,991 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-01 21:39:25,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:39:25 BoogieIcfgContainer [2019-01-01 21:39:25,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:39:25,995 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:39:25,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:39:26,008 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:39:26,011 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:39:26,014 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:39:25" (1/3) ... [2019-01-01 21:39:26,015 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2588d30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:39:26, skipping insertion in model container [2019-01-01 21:39:26,015 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:39:26,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:39:25" (2/3) ... [2019-01-01 21:39:26,016 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2588d30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:39:26, skipping insertion in model container [2019-01-01 21:39:26,017 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:39:26,023 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:39:25" (3/3) ... [2019-01-01 21:39:26,029 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_01_false-termination_true-no-overflow.c [2019-01-01 21:39:26,136 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:39:26,137 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:39:26,137 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:39:26,137 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:39:26,137 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:39:26,138 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:39:26,138 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:39:26,138 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:39:26,138 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:39:26,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-01 21:39:26,176 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2019-01-01 21:39:26,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:39:26,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:39:26,183 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 21:39:26,183 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:39:26,183 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:39:26,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-01 21:39:26,185 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2019-01-01 21:39:26,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:39:26,186 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:39:26,186 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 21:39:26,186 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:39:26,194 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 3#L10true assume main_~c~0 <= 10;main_~i~0 := 0; 4#L12-2true [2019-01-01 21:39:26,194 INFO L796 eck$LassoCheckResult]: Loop: 4#L12-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 4#L12-2true [2019-01-01 21:39:26,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:39:26,201 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-01-01 21:39:26,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:39:26,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:39:26,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:26,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:39:26,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:39:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:39:26,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 21:39:26,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-01 21:39:26,376 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-01-01 21:39:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:39:26,377 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2019-01-01 21:39:26,377 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:39:26,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:39:26,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:26,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:39:26,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:39:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:39:26,478 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:39:26,479 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:39:26,479 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:39:26,480 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:39:26,480 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:39:26,480 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:39:26,480 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:39:26,480 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:39:26,480 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_01_false-termination_true-no-overflow.c_Iteration1_Loop [2019-01-01 21:39:26,481 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:39:26,481 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:39:26,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:39:26,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:39:26,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:39:26,659 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:39:26,660 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:39:26,666 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:39:26,666 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:39:26,700 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:39:26,701 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:39:26,708 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:39:26,708 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:39:26,729 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:39:26,729 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:39:26,741 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:39:26,741 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:39:26,767 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:39:26,767 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:39:26,793 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 21:39:26,795 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:39:26,795 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:39:26,795 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:39:26,795 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:39:26,796 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:39:26,796 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:39:26,796 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:39:26,796 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:39:26,796 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_01_false-termination_true-no-overflow.c_Iteration1_Loop [2019-01-01 21:39:26,796 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:39:26,797 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:39:26,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:39:26,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:39:26,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:39:27,091 WARN L181 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-01-01 21:39:27,159 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:39:27,166 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:39:27,168 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 21:39:27,170 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:39:27,171 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:39:27,171 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:39:27,171 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:39:27,177 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:39:27,177 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:39:27,185 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:39:27,186 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 21:39:27,188 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:39:27,188 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:39:27,188 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:39:27,188 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:39:27,192 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:39:27,192 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:39:27,202 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:39:27,203 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 21:39:27,203 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:39:27,204 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:39:27,204 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:39:27,206 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:39:27,206 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:39:27,207 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:39:27,207 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:39:27,219 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:39:27,226 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 21:39:27,226 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 21:39:27,228 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:39:27,229 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 21:39:27,229 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:39:27,229 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2019-01-01 21:39:27,231 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 21:39:27,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:39:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:39:27,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:39:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:39:27,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:39:27,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:39:27,372 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-01-01 21:39:27,374 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2019-01-01 21:39:27,460 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 29 states and 45 transitions. Complement of second has 5 states. [2019-01-01 21:39:27,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 21:39:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-01-01 21:39:27,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2019-01-01 21:39:27,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 1 letters. [2019-01-01 21:39:27,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:39:27,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2019-01-01 21:39:27,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:39:27,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 2 letters. [2019-01-01 21:39:27,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:39:27,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. [2019-01-01 21:39:27,474 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2019-01-01 21:39:27,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 7 states and 10 transitions. [2019-01-01 21:39:27,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-01-01 21:39:27,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-01-01 21:39:27,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-01-01 21:39:27,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:39:27,481 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 21:39:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-01-01 21:39:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-01 21:39:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-01 21:39:27,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-01-01 21:39:27,513 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 21:39:27,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 21:39:27,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 21:39:27,518 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2019-01-01 21:39:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 21:39:27,543 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-01-01 21:39:27,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 21:39:27,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2019-01-01 21:39:27,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:39:27,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2019-01-01 21:39:27,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-01-01 21:39:27,546 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-01-01 21:39:27,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2019-01-01 21:39:27,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:39:27,546 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-01 21:39:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2019-01-01 21:39:27,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-01 21:39:27,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-01 21:39:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-01-01 21:39:27,548 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-01 21:39:27,548 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-01 21:39:27,548 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 21:39:27,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2019-01-01 21:39:27,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:39:27,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:39:27,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:39:27,550 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-01 21:39:27,550 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:39:27,550 INFO L794 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 84#L10 assume !(main_~c~0 <= 10); 85#L17 assume !(main_~c~0 <= 50); 86#L17-1 assume !(main_~c~0 <= 100);main_~i~0 := 0; 87#L31-2 [2019-01-01 21:39:27,550 INFO L796 eck$LassoCheckResult]: Loop: 87#L31-2 assume !!(main_~i~0 < 103);main_~i~0 := main_~i~0; 87#L31-2 [2019-01-01 21:39:27,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:39:27,551 INFO L82 PathProgramCache]: Analyzing trace with hash 971748, now seen corresponding path program 1 times [2019-01-01 21:39:27,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:39:27,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:39:27,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:27,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:39:27,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:39:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:39:27,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:39:27,561 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2019-01-01 21:39:27,561 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:39:27,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:39:27,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:27,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:39:27,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:39:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:39:27,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:39:27,568 INFO L82 PathProgramCache]: Analyzing trace with hash 30124250, now seen corresponding path program 1 times [2019-01-01 21:39:27,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:39:27,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:39:27,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:27,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:39:27,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:39:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:39:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:39:27,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:39:27 BoogieIcfgContainer [2019-01-01 21:39:27,791 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:39:27,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:39:27,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:39:27,792 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:39:27,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:39:25" (3/4) ... [2019-01-01 21:39:27,796 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-01 21:39:27,851 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 21:39:27,852 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:39:27,854 INFO L168 Benchmark]: Toolchain (without parser) took 2710.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -57.7 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. [2019-01-01 21:39:27,855 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-01-01 21:39:27,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:39:27,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.13 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:39:27,857 INFO L168 Benchmark]: Boogie Preprocessor took 37.17 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:39:27,860 INFO L168 Benchmark]: RCFGBuilder took 439.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-01-01 21:39:27,861 INFO L168 Benchmark]: BuchiAutomizer took 1795.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. [2019-01-01 21:39:27,862 INFO L168 Benchmark]: Witness Printer took 60.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:39:27,866 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 313.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 55.13 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.17 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 439.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1795.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 82.9 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. * Witness Printer took 60.74 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 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 Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 23 SDslu, 3 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 31]: 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 {\result=0, c=864, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 [L10] COND FALSE !(c <= 10) [L17] COND FALSE !(c <= 50) [L23] COND FALSE !(c <= 100) [L30] i = 0 Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...