./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c -s /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer --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 0.1.24-6b5699a [2019-11-25 08:51:46,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:46,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:46,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:46,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:46,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:46,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:46,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:46,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:46,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:46,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:46,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:46,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:46,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:46,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:46,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:46,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:46,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:46,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:46,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:46,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:46,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:46,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:46,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:46,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:46,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:46,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:46,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:46,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:46,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:46,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:46,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:46,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:46,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:46,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:46,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:46,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:46,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:46,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:46,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:46,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:46,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:51:46,622 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:46,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:46,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:46,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:46,624 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:46,624 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:51:46,624 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:51:46,624 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:51:46,624 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:51:46,624 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:51:46,625 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:51:46,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:46,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:51:46,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:46,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:46,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:51:46,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:51:46,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:51:46,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:46,626 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:51:46,626 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:46,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:51:46,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:46,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:46,627 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:51:46,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:46,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:46,628 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:51:46,629 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:51:46,629 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer 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 [2019-11-25 08:51:46,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:46,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:46,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:46,781 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:46,781 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:46,782 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-25 08:51:46,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/data/0211d78ff/66b1087c83d14780bc11a79210324f7d/FLAG4f0c988e3 [2019-11-25 08:51:47,240 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:47,241 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-25 08:51:47,246 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/data/0211d78ff/66b1087c83d14780bc11a79210324f7d/FLAG4f0c988e3 [2019-11-25 08:51:47,261 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/data/0211d78ff/66b1087c83d14780bc11a79210324f7d [2019-11-25 08:51:47,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:47,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:47,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:47,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:47,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:47,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28508500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47, skipping insertion in model container [2019-11-25 08:51:47,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:47,305 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:47,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:47,463 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:47,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:47,545 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:47,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47 WrapperNode [2019-11-25 08:51:47,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:47,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:47,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:47,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:47,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:47,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:47,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:47,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:47,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... [2019-11-25 08:51:47,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:47,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:47,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:47,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:47,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/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 [2019-11-25 08:51:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:47,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:47,784 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:47,784 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:51:47,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:47 BoogieIcfgContainer [2019-11-25 08:51:47,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:47,786 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:51:47,786 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:51:47,789 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:51:47,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:47,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:51:47" (1/3) ... [2019-11-25 08:51:47,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59d6c10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:51:47, skipping insertion in model container [2019-11-25 08:51:47,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:47,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:47" (2/3) ... [2019-11-25 08:51:47,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59d6c10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:51:47, skipping insertion in model container [2019-11-25 08:51:47,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:47,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:47" (3/3) ... [2019-11-25 08:51:47,793 INFO L371 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified.c [2019-11-25 08:51:47,870 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:51:47,884 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:51:47,884 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:51:47,884 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:47,884 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:47,884 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:51:47,885 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:47,885 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:51:47,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-25 08:51:47,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:51:47,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:47,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:47,937 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:51:47,952 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:51:47,952 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:51:47,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-25 08:51:47,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:51:47,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:47,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:47,954 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:51:47,954 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:51:47,965 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~y1~0, main_~y2~0;havoc main_~y1~0;havoc main_~y2~0;main_~y1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y2~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L20true assume main_~y1~0 >= 0 && main_~y2~0 >= 0; 10#L22-2true [2019-11-25 08:51:47,965 INFO L796 eck$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 [2019-11-25 08:51:47,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:47,984 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-25 08:51:47,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:47,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828760200] [2019-11-25 08:51:47,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:48,075 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:48,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:48,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2019-11-25 08:51:48,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:48,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321136646] [2019-11-25 08:51:48,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:48,090 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:48,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:48,092 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2019-11-25 08:51:48,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:48,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045103434] [2019-11-25 08:51:48,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:48,105 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:48,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:51:48 BoogieIcfgContainer [2019-11-25 08:51:48,203 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:51:48,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:48,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:48,203 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:48,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:47" (3/4) ... [2019-11-25 08:51:48,206 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:51:48,243 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_14b5fa9f-0298-4a1c-8618-584650e43768/bin/uautomizer/witness.graphml [2019-11-25 08:51:48,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:48,245 INFO L168 Benchmark]: Toolchain (without parser) took 978.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:48,246 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:48,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -218.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:48,247 INFO L168 Benchmark]: Boogie Preprocessor took 14.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:48,248 INFO L168 Benchmark]: RCFGBuilder took 192.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,249 INFO L168 Benchmark]: BuchiAutomizer took 416.97 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: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,249 INFO L168 Benchmark]: Witness Printer took 40.66 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:48,255 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -218.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 192.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 416.97 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: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Witness Printer took 40.66 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: 6.7 MB). Peak memory consumption was 6.7 MB. 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@23be2efe=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f553c69=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...