./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/NO_03_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f 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_03_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 89ce36fdd9a6142844b72609f6c752ece8563e1f ..................................................................................................................................................................................................................................................................................................................... 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 0.1.24-0ed9222-m [2019-01-14 02:22:39,663 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:22:39,665 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:22:39,677 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:22:39,677 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:22:39,678 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:22:39,680 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:22:39,681 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:22:39,683 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:22:39,684 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:22:39,685 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:22:39,685 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:22:39,686 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:22:39,687 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:22:39,689 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:22:39,689 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:22:39,690 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:22:39,692 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:22:39,694 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:22:39,696 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:22:39,697 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:22:39,698 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:22:39,701 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:22:39,701 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:22:39,701 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:22:39,702 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:22:39,704 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:22:39,704 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:22:39,705 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:22:39,707 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:22:39,707 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:22:39,708 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:22:39,708 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:22:39,708 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:22:39,709 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:22:39,710 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:22:39,710 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:22:39,735 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:22:39,739 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:22:39,740 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:22:39,740 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:22:39,740 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:22:39,741 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:22:39,742 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:22:39,743 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:22:39,743 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:22:39,743 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:22:39,744 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:22:39,744 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:22:39,744 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:22:39,744 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:22:39,744 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:22:39,744 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:22:39,745 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:22:39,745 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:22:39,745 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:22:39,745 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:22:39,745 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:22:39,745 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:22:39,746 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:22:39,746 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:22:39,746 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:22:39,746 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:22:39,746 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:22:39,746 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:22:39,751 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:22:39,752 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 -> 89ce36fdd9a6142844b72609f6c752ece8563e1f [2019-01-14 02:22:39,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:22:39,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:22:39,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:22:39,823 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:22:39,823 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:22:39,824 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/NO_03_false-termination_true-no-overflow.c [2019-01-14 02:22:39,879 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678b0c384/601e0348376c41abb24084024fca45b4/FLAG25db7717a [2019-01-14 02:22:40,371 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:22:40,371 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/NO_03_false-termination_true-no-overflow.c [2019-01-14 02:22:40,379 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678b0c384/601e0348376c41abb24084024fca45b4/FLAG25db7717a [2019-01-14 02:22:40,699 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678b0c384/601e0348376c41abb24084024fca45b4 [2019-01-14 02:22:40,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:22:40,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:22:40,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:22:40,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:22:40,708 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:22:40,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:40,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de23fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40, skipping insertion in model container [2019-01-14 02:22:40,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:40,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:22:40,738 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:22:40,931 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:22:40,937 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:22:40,950 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:22:40,969 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:22:40,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40 WrapperNode [2019-01-14 02:22:40,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:22:40,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:22:40,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:22:40,970 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:22:40,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:40,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:41,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:22:41,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:22:41,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:22:41,010 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:22:41,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:41,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:41,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:41,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:41,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:41,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:41,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (1/1) ... [2019-01-14 02:22:41,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:22:41,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:22:41,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:22:41,034 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:22:41,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (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 [2019-01-14 02:22:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:22:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:22:41,301 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:22:41,302 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-14 02:22:41,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:22:41 BoogieIcfgContainer [2019-01-14 02:22:41,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:22:41,304 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:22:41,305 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:22:41,310 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:22:41,311 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:22:41,311 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:22:40" (1/3) ... [2019-01-14 02:22:41,312 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62444b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:22:41, skipping insertion in model container [2019-01-14 02:22:41,312 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:22:41,312 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:40" (2/3) ... [2019-01-14 02:22:41,313 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62444b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:22:41, skipping insertion in model container [2019-01-14 02:22:41,313 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:22:41,313 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:22:41" (3/3) ... [2019-01-14 02:22:41,315 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_03_false-termination_true-no-overflow.c [2019-01-14 02:22:41,379 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:22:41,379 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:22:41,380 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:22:41,380 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:22:41,380 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:22:41,380 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:22:41,380 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:22:41,380 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:22:41,380 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:22:41,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-01-14 02:22:41,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 02:22:41,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:22:41,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:22:41,423 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:22:41,423 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 02:22:41,423 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:22:41,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-01-14 02:22:41,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 02:22:41,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:22:41,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:22:41,425 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:22:41,425 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 02:22:41,434 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 8#L10-2true [2019-01-14 02:22:41,434 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 100);main_~j~0 := 0; 3#L12-2true assume !(main_~j~0 < 1); 10#L12-3true main_~i~0 := main_~i~0; 8#L10-2true [2019-01-14 02:22:41,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:41,441 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-14 02:22:41,443 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:41,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:41,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:41,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:41,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:41,541 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-01-14 02:22:41,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:41,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:41,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:41,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:22:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 02:22:41,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 02:22:41,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 02:22:41,644 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 02:22:41,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 02:22:41,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 02:22:41,676 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2019-01-14 02:22:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 02:22:41,761 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-01-14 02:22:41,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 02:22:41,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2019-01-14 02:22:41,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-14 02:22:41,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2019-01-14 02:22:41,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-01-14 02:22:41,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-01-14 02:22:41,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2019-01-14 02:22:41,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 02:22:41,777 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-01-14 02:22:41,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2019-01-14 02:22:41,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-14 02:22:41,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-14 02:22:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2019-01-14 02:22:41,817 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-01-14 02:22:41,817 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-01-14 02:22:41,818 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 02:22:41,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2019-01-14 02:22:41,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-14 02:22:41,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:22:41,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:22:41,821 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:22:41,822 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-14 02:22:41,822 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 29#L10-2 [2019-01-14 02:22:41,822 INFO L796 eck$LassoCheckResult]: Loop: 29#L10-2 assume !!(main_~i~0 < 100);main_~j~0 := 0; 26#L12-2 assume !!(main_~j~0 < 1);main_~j~0 := 1 + main_~j~0; 27#L12-2 assume !(main_~j~0 < 1); 30#L12-3 main_~i~0 := main_~i~0; 29#L10-2 [2019-01-14 02:22:41,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:41,823 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-01-14 02:22:41,823 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:41,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:41,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:41,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:41,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:41,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2019-01-14 02:22:41,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:41,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:41,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,851 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 02:22:41,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:41,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:41,883 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2019-01-14 02:22:41,883 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:41,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:41,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:41,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:42,113 WARN L181 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2019-01-14 02:22:42,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:22:42 BoogieIcfgContainer [2019-01-14 02:22:42,192 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:22:42,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:22:42,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:22:42,192 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:22:42,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:22:41" (3/4) ... [2019-01-14 02:22:42,197 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 02:22:42,244 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 02:22:42,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:22:42,245 INFO L168 Benchmark]: Toolchain (without parser) took 1542.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -142.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:22:42,248 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:22:42,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.31 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:22:42,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.64 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:22:42,253 INFO L168 Benchmark]: Boogie Preprocessor took 23.75 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:22:42,255 INFO L168 Benchmark]: RCFGBuilder took 269.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-01-14 02:22:42,256 INFO L168 Benchmark]: BuchiAutomizer took 887.25 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-01-14 02:22:42,257 INFO L168 Benchmark]: Witness Printer took 52.19 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. [2019-01-14 02:22:42,265 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.31 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.64 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.75 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 269.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 887.25 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Witness Printer took 52.19 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.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 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 10]: 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, i=0, j=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...