./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loops/nec40_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 fffaea79f968c931abbf923bf574b15b9c605c6a ........................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 03:40:21,368 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 03:40:21,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 03:40:21,384 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 03:40:21,384 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 03:40:21,385 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 03:40:21,387 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 03:40:21,389 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 03:40:21,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 03:40:21,391 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 03:40:21,392 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 03:40:21,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 03:40:21,394 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 03:40:21,395 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 03:40:21,396 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 03:40:21,397 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 03:40:21,398 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 03:40:21,402 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 03:40:21,406 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 03:40:21,411 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 03:40:21,418 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 03:40:21,419 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 03:40:21,422 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 03:40:21,422 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 03:40:21,422 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 03:40:21,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 03:40:21,425 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 03:40:21,426 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 03:40:21,427 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 03:40:21,428 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 03:40:21,428 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 03:40:21,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 03:40:21,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 03:40:21,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 03:40:21,431 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 03:40:21,432 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 03:40:21,432 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 03:40:21,450 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 03:40:21,450 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 03:40:21,452 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 03:40:21,452 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 03:40:21,452 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 03:40:21,452 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 03:40:21,453 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 03:40:21,453 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 03:40:21,453 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 03:40:21,454 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 03:40:21,454 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 03:40:21,454 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 03:40:21,454 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 03:40:21,454 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 03:40:21,454 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 03:40:21,456 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 03:40:21,456 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 03:40:21,456 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 03:40:21,456 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 03:40:21,456 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 03:40:21,457 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 03:40:21,457 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 03:40:21,457 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 03:40:21,457 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 03:40:21,457 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 03:40:21,457 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 03:40:21,458 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 03:40:21,459 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 03:40:21,459 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 03:40:21,460 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 03:40:21,460 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 03:40:21,461 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 03:40:21,462 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 -> fffaea79f968c931abbf923bf574b15b9c605c6a [2019-01-14 03:40:21,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 03:40:21,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 03:40:21,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 03:40:21,517 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 03:40:21,517 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 03:40:21,518 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i [2019-01-14 03:40:21,579 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c8f96559/84e36a686d9c4745a47990fcf240b3a1/FLAG1cf8f7002 [2019-01-14 03:40:22,045 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 03:40:22,046 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/nec40_true-unreach-call_true-termination.i [2019-01-14 03:40:22,053 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c8f96559/84e36a686d9c4745a47990fcf240b3a1/FLAG1cf8f7002 [2019-01-14 03:40:22,414 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c8f96559/84e36a686d9c4745a47990fcf240b3a1 [2019-01-14 03:40:22,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 03:40:22,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 03:40:22,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 03:40:22,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 03:40:22,425 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 03:40:22,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@872c042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22, skipping insertion in model container [2019-01-14 03:40:22,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 03:40:22,456 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 03:40:22,672 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:40:22,718 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 03:40:22,748 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:40:22,784 INFO L195 MainTranslator]: Completed translation [2019-01-14 03:40:22,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22 WrapperNode [2019-01-14 03:40:22,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 03:40:22,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 03:40:22,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 03:40:22,786 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 03:40:22,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 03:40:22,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 03:40:22,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 03:40:22,825 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 03:40:22,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (1/1) ... [2019-01-14 03:40:22,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 03:40:22,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 03:40:22,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 03:40:22,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 03:40:22,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (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 03:40:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 03:40:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 03:40:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 03:40:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 03:40:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 03:40:23,309 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 03:40:23,309 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 03:40:23,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:40:23 BoogieIcfgContainer [2019-01-14 03:40:23,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 03:40:23,312 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 03:40:23,316 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 03:40:23,322 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 03:40:23,323 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:40:23,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 03:40:22" (1/3) ... [2019-01-14 03:40:23,325 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58d58d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:40:23, skipping insertion in model container [2019-01-14 03:40:23,326 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:40:23,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:40:22" (2/3) ... [2019-01-14 03:40:23,327 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58d58d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:40:23, skipping insertion in model container [2019-01-14 03:40:23,328 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:40:23,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:40:23" (3/3) ... [2019-01-14 03:40:23,330 INFO L375 chiAutomizerObserver]: Analyzing ICFG nec40_true-unreach-call_true-termination.i [2019-01-14 03:40:23,420 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 03:40:23,421 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 03:40:23,422 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 03:40:23,422 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 03:40:23,422 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 03:40:23,422 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 03:40:23,422 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 03:40:23,423 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 03:40:23,423 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 03:40:23,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-01-14 03:40:23,458 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:40:23,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:40:23,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:40:23,464 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:40:23,465 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:40:23,465 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 03:40:23,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-01-14 03:40:23,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:40:23,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:40:23,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:40:23,469 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:40:23,470 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:40:23,476 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#x~0.base, ~#x~0.offset := #Ultimate.allocOnStack(100);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#x~0.base);call ~#y~0.base, ~#y~0.offset := #Ultimate.allocOnStack(100);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, ~#y~0.base);~i~0 := 0;~j~0 := 0;~k~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~mem2, main_#t~post3, main_#t~mem1, main_#t~mem4;~k~0 := main_#t~nondet0;havoc main_#t~nondet0;~i~0 := 0; 3#L18-3true [2019-01-14 03:40:23,477 INFO L796 eck$LassoCheckResult]: Loop: 3#L18-3true call main_#t~mem1 := read~int(~#x~0.base, ~#x~0.offset + ~i~0, 1); 5#L18-1true 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; 3#L18-3true [2019-01-14 03:40:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:23,483 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-01-14 03:40:23,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:23,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:23,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:23,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:40:23,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:23,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:23,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2019-01-14 03:40:23,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:23,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:23,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:23,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:40:23,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:40:23,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:40:23,655 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-01-14 03:40:23,655 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:40:23,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:40:23,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:23,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:40:23,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:40:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:40:23,929 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 03:40:23,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 03:40:23,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 03:40:24,312 WARN L181 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-01-14 03:40:24,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 03:40:24,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 03:40:24,334 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2019-01-14 03:40:24,538 WARN L181 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2019-01-14 03:40:24,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 03:40:24,608 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-01-14 03:40:24,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 03:40:24,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2019-01-14 03:40:24,613 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:40:24,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2019-01-14 03:40:24,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 03:40:24,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 03:40:24,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 03:40:24,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:40:24,620 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:40:24,620 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:40:24,620 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:40:24,620 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 03:40:24,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 03:40:24,622 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:40:24,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 03:40:24,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 03:40:24 BoogieIcfgContainer [2019-01-14 03:40:24,629 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 03:40:24,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 03:40:24,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 03:40:24,630 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 03:40:24,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:40:23" (3/4) ... [2019-01-14 03:40:24,636 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 03:40:24,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 03:40:24,637 INFO L168 Benchmark]: Toolchain (without parser) took 2217.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -110.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-01-14 03:40:24,638 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-01-14 03:40:24,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.66 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-14 03:40:24,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.16 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. [2019-01-14 03:40:24,642 INFO L168 Benchmark]: Boogie Preprocessor took 90.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-14 03:40:24,643 INFO L168 Benchmark]: RCFGBuilder took 395.76 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:40:24,644 INFO L168 Benchmark]: BuchiAutomizer took 1317.53 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2019-01-14 03:40:24,646 INFO L168 Benchmark]: Witness Printer took 6.36 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 03:40:24,651 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 363.66 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.16 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. * Boogie Preprocessor took 90.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 395.76 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1317.53 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.36 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 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 10 SDtfs, 11 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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...