./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.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 f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-19 22:20:19,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:20:19,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:20:19,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:20:19,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:20:19,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:20:19,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:20:19,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:20:19,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:20:19,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:20:19,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:20:19,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:20:19,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:20:19,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:20:19,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:20:19,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:20:19,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:20:19,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:20:19,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:20:19,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:20:19,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:20:19,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:20:19,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:20:19,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:20:19,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:20:19,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:20:19,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:20:19,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:20:19,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:20:19,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:20:19,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:20:19,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:20:19,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:20:19,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:20:19,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:20:19,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:20:19,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:20:19,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:20:19,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:20:19,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:20:19,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:20:19,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 22:20:19,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:20:19,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:20:19,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:20:19,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:20:19,556 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:20:19,556 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:20:19,557 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:20:19,557 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:20:19,557 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:20:19,557 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:20:19,558 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:20:19,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:20:19,558 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:20:19,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:20:19,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:20:19,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:20:19,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:20:19,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:20:19,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:20:19,560 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:20:19,561 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:20:19,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:20:19,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:20:19,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:20:19,562 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:20:19,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:20:19,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:20:19,563 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:20:19,563 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:20:19,564 INFO L138 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 -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2019-11-19 22:20:19,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:20:19,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:20:19,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:20:19,866 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:20:19,867 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:20:19,868 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-19 22:20:19,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e94d99f/14936a2343de467089aba3e38b792c2f/FLAGc555ae9bf [2019-11-19 22:20:20,353 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:20:20,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-19 22:20:20,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e94d99f/14936a2343de467089aba3e38b792c2f/FLAGc555ae9bf [2019-11-19 22:20:20,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e94d99f/14936a2343de467089aba3e38b792c2f [2019-11-19 22:20:20,759 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:20:20,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:20:20,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:20:20,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:20:20,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:20:20,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:20:20" (1/1) ... [2019-11-19 22:20:20,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5373a6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:20, skipping insertion in model container [2019-11-19 22:20:20,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:20:20" (1/1) ... [2019-11-19 22:20:20,779 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:20:20,801 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:20:20,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:20:20,988 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:20:21,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:20:21,013 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:20:21,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21 WrapperNode [2019-11-19 22:20:21,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:20:21,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:20:21,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:20:21,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:20:21,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:20:21,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:20:21,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:20:21,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:20:21,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (1/1) ... [2019-11-19 22:20:21,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:20:21,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:20:21,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:20:21,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:20:21,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (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 [2019-11-19 22:20:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:20:21,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:20:21,302 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:20:21,302 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 22:20:21,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:21 BoogieIcfgContainer [2019-11-19 22:20:21,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:20:21,304 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:20:21,304 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:20:21,307 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:20:21,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:21,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:20:20" (1/3) ... [2019-11-19 22:20:21,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@615a5318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:20:21, skipping insertion in model container [2019-11-19 22:20:21,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:21,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:20:21" (2/3) ... [2019-11-19 22:20:21,310 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@615a5318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:20:21, skipping insertion in model container [2019-11-19 22:20:21,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:20:21,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:21" (3/3) ... [2019-11-19 22:20:21,312 INFO L371 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-19 22:20:21,360 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:20:21,360 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:20:21,360 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:20:21,361 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:20:21,361 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:20:21,361 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:20:21,361 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:20:21,361 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:20:21,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-19 22:20:21,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:21,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:21,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:21,410 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:20:21,410 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:20:21,411 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:20:21,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-19 22:20:21,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:20:21,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:20:21,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:20:21,414 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:20:21,414 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:20:21,427 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~y1~0, main_~y2~0;havoc main_~y1~0;havoc main_~y2~0;main_~y1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y2~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L20true assume main_~y1~0 >= 0 && main_~y2~0 >= 0; 10#L22-2true [2019-11-19 22:20:21,427 INFO L796 eck$LassoCheckResult]: Loop: 10#L22-2true assume !!(main_~y1~0 != main_~y2~0); 4#L22true assume main_~y1~0 > main_~y2~0;main_~y1~0 := main_~y1~0 - main_~y2~0; 10#L22-2true [2019-11-19 22:20:21,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:21,436 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-19 22:20:21,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:21,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973444974] [2019-11-19 22:20:21,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:21,566 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:21,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:21,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2019-11-19 22:20:21,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:21,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261495922] [2019-11-19 22:20:21,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:21,583 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:21,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:20:21,585 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2019-11-19 22:20:21,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:20:21,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499352727] [2019-11-19 22:20:21,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:20:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:20:21,601 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:20:21,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:20:21 BoogieIcfgContainer [2019-11-19 22:20:21,711 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:20:21,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:20:21,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:20:21,712 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:20:21,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:20:21" (3/4) ... [2019-11-19 22:20:21,716 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:20:21,770 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:20:21,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:20:21,777 INFO L168 Benchmark]: Toolchain (without parser) took 1013.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:21,778 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:20:21,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.56 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:21,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -202.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:21,781 INFO L168 Benchmark]: Boogie Preprocessor took 15.65 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. [2019-11-19 22:20:21,788 INFO L168 Benchmark]: RCFGBuilder took 191.75 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: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:21,789 INFO L168 Benchmark]: BuchiAutomizer took 406.50 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:20:21,789 INFO L168 Benchmark]: Witness Printer took 60.23 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. [2019-11-19 22:20:21,802 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.56 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 81.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -202.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.65 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. * RCFGBuilder took 191.75 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: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 406.50 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Witness Printer took 60.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 21]: 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 {y2=0, y1=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@360064cb=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c41d38c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 21]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L17] int y1, y2; [L18] y1 = __VERIFIER_nondet_int() [L19] y2 = __VERIFIER_nondet_int() [L20] COND TRUE y1 >= 0 && y2 >= 0 Loop: [L21] COND TRUE y1 != y2 [L22] COND TRUE y1 > y2 [L23] y1 = y1 - y2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...