./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/n.c40_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loops/n.c40_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash a2dbe578aaa8f4d94b72aa1723f297c002a26229 ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 22:58:29,740 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 22:58:29,742 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 22:58:29,754 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 22:58:29,755 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 22:58:29,756 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 22:58:29,757 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 22:58:29,759 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 22:58:29,760 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 22:58:29,761 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 22:58:29,762 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 22:58:29,762 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 22:58:29,763 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 22:58:29,764 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 22:58:29,765 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 22:58:29,766 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 22:58:29,767 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 22:58:29,769 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 22:58:29,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 22:58:29,773 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 22:58:29,774 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 22:58:29,775 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 22:58:29,778 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 22:58:29,778 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 22:58:29,778 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 22:58:29,779 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 22:58:29,780 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 22:58:29,781 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 22:58:29,782 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 22:58:29,783 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 22:58:29,783 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 22:58:29,784 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 22:58:29,784 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 22:58:29,785 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 22:58:29,786 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 22:58:29,787 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 22:58:29,787 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 22:58:29,814 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 22:58:29,814 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 22:58:29,815 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 22:58:29,816 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 22:58:29,816 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 22:58:29,816 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 22:58:29,816 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 22:58:29,816 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 22:58:29,816 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 22:58:29,817 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 22:58:29,817 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 22:58:29,817 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 22:58:29,817 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 22:58:29,817 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 22:58:29,818 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 22:58:29,818 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 22:58:29,818 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 22:58:29,818 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 22:58:29,818 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 22:58:29,818 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 22:58:29,818 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 22:58:29,819 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 22:58:29,819 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 22:58:29,819 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 22:58:29,819 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 22:58:29,819 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 22:58:29,820 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 22:58:29,820 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 22:58:29,820 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 22:58:29,820 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 22:58:29,820 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 22:58:29,821 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 22:58:29,821 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2dbe578aaa8f4d94b72aa1723f297c002a26229 [2019-01-01 22:58:29,858 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 22:58:29,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 22:58:29,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 22:58:29,882 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 22:58:29,882 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 22:58:29,883 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/n.c40_true-unreach-call_true-termination.i [2019-01-01 22:58:29,953 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7436831bf/2e3ad7d4b99b4fca837297bdee1f8578/FLAGad47980d4 [2019-01-01 22:58:30,394 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 22:58:30,395 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/n.c40_true-unreach-call_true-termination.i [2019-01-01 22:58:30,400 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7436831bf/2e3ad7d4b99b4fca837297bdee1f8578/FLAGad47980d4 [2019-01-01 22:58:30,760 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7436831bf/2e3ad7d4b99b4fca837297bdee1f8578 [2019-01-01 22:58:30,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 22:58:30,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 22:58:30,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 22:58:30,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 22:58:30,769 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 22:58:30,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:58:30" (1/1) ... [2019-01-01 22:58:30,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d1e411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:30, skipping insertion in model container [2019-01-01 22:58:30,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:58:30" (1/1) ... [2019-01-01 22:58:30,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 22:58:30,807 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 22:58:31,012 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:58:31,047 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 22:58:31,073 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:58:31,101 INFO L195 MainTranslator]: Completed translation [2019-01-01 22:58:31,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31 WrapperNode [2019-01-01 22:58:31,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 22:58:31,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 22:58:31,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 22:58:31,103 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 22:58:31,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 22:58:31,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 22:58:31,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 22:58:31,144 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 22:58:31,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (1/1) ... [2019-01-01 22:58:31,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 22:58:31,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 22:58:31,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 22:58:31,173 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 22:58:31,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (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 22:58:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 22:58:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 22:58:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 22:58:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 22:58:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 22:58:31,631 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 22:58:31,631 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 22:58:31,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:58:31 BoogieIcfgContainer [2019-01-01 22:58:31,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 22:58:31,636 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 22:58:31,636 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 22:58:31,640 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 22:58:31,641 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:58:31,641 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 10:58:30" (1/3) ... [2019-01-01 22:58:31,642 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38b48abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:58:31, skipping insertion in model container [2019-01-01 22:58:31,642 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:58:31,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:58:31" (2/3) ... [2019-01-01 22:58:31,643 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38b48abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:58:31, skipping insertion in model container [2019-01-01 22:58:31,643 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:58:31,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:58:31" (3/3) ... [2019-01-01 22:58:31,645 INFO L375 chiAutomizerObserver]: Analyzing ICFG n.c40_true-unreach-call_true-termination.i [2019-01-01 22:58:31,705 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 22:58:31,706 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 22:58:31,706 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 22:58:31,706 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 22:58:31,706 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 22:58:31,706 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 22:58:31,706 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 22:58:31,707 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 22:58:31,707 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 22:58:31,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-01 22:58:31,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:58:31,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:58:31,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:58:31,755 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 22:58:31,755 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:58:31,755 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 22:58:31,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-01 22:58:31,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:58:31,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:58:31,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:58:31,757 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 22:58:31,758 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:58:31,765 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#x~0.base, ~#x~0.offset := #Ultimate.allocOnStack(100);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#x~0.base);call ~#y~0.base, ~#y~0.offset := #Ultimate.allocOnStack(100);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#y~0.base);~i~0 := 0;~j~0 := 0;~k~0 := 0; 3#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~mem2, main_#t~post3, main_#t~mem1, main_#t~mem4;~k~0 := main_#t~nondet0;havoc main_#t~nondet0;~i~0 := 0; 13#L12-3true [2019-01-01 22:58:31,765 INFO L796 eck$LassoCheckResult]: Loop: 13#L12-3true call main_#t~mem1 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1); 5#L12-1true assume !!(0 != main_#t~mem1);havoc main_#t~mem1;call main_#t~mem2 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1);call write~int(main_#t~mem2, ~#y~0.base, ~#y~0.offset + ~i~0, 1);havoc main_#t~mem2;main_#t~post3 := ~i~0;~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13#L12-3true [2019-01-01 22:58:31,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:58:31,772 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-01-01 22:58:31,773 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:58:31,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:58:31,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:58:31,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:58:31,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:58:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:58:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:58:31,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:58:31,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2019-01-01 22:58:31,911 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:58:31,911 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:58:31,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:58:31,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:58:31,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:58:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:58:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:58:31,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:58:31,938 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-01-01 22:58:31,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:58:31,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:58:31,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:58:31,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:58:31,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:58:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:58:32,210 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 22:58:32,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 22:58:32,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 22:58:32,332 WARN L181 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2019-01-01 22:58:32,459 WARN L181 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-01-01 22:58:32,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 22:58:32,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 22:58:32,478 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-01-01 22:58:32,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 22:58:32,636 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-01-01 22:58:32,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 22:58:32,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2019-01-01 22:58:32,640 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 22:58:32,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2019-01-01 22:58:32,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 22:58:32,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 22:58:32,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 22:58:32,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 22:58:32,646 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:58:32,647 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:58:32,647 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:58:32,647 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 22:58:32,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 22:58:32,647 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 22:58:32,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 22:58:32,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 10:58:32 BoogieIcfgContainer [2019-01-01 22:58:32,655 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 22:58:32,656 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 22:58:32,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 22:58:32,656 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 22:58:32,657 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:58:31" (3/4) ... [2019-01-01 22:58:32,661 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 22:58:32,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 22:58:32,664 INFO L168 Benchmark]: Toolchain (without parser) took 1900.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -121.6 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2019-01-01 22:58:32,666 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:58:32,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.42 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 22:58:32,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.49 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:58:32,671 INFO L168 Benchmark]: Boogie Preprocessor took 28.27 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-01 22:58:32,672 INFO L168 Benchmark]: RCFGBuilder took 459.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-01 22:58:32,673 INFO L168 Benchmark]: BuchiAutomizer took 1019.20 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2019-01-01 22:58:32,675 INFO L168 Benchmark]: Witness Printer took 7.69 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. [2019-01-01 22:58:32,684 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 336.42 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 41.49 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.27 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 459.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1019.20 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * Witness Printer took 7.69 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). 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.1s. 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 No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 9 SDslu, 5 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...