./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/trex04_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex04_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/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 32bit --witnessprinter.graph.data.programhash ebd700d2a774ad3ca11fe220b69fa701cbe412e1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-1dbac8b [2018-11-10 10:58:37,927 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:58:37,928 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:58:37,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:58:37,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:58:37,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:58:37,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:58:37,940 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:58:37,941 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:58:37,942 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:58:37,942 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:58:37,943 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:58:37,943 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:58:37,944 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:58:37,945 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:58:37,946 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:58:37,946 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:58:37,947 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:58:37,949 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:58:37,950 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:58:37,950 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:58:37,951 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:58:37,953 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:58:37,953 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:58:37,953 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:58:37,954 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:58:37,954 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:58:37,955 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:58:37,955 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:58:37,956 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:58:37,956 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:58:37,957 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:58:37,957 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:58:37,957 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:58:37,958 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:58:37,958 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:58:37,958 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 10:58:37,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:58:37,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:58:37,970 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 10:58:37,970 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 10:58:37,970 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 10:58:37,971 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 10:58:37,971 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 10:58:37,971 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 10:58:37,971 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 10:58:37,971 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 10:58:37,971 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 10:58:37,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:58:37,972 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:58:37,972 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 10:58:37,972 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:58:37,972 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:58:37,972 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:58:37,972 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 10:58:37,972 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 10:58:37,972 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 10:58:37,973 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:58:37,973 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:58:37,973 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 10:58:37,973 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 10:58:37,973 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:58:37,973 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:58:37,973 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 10:58:37,974 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:58:37,974 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 10:58:37,974 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 10:58:37,974 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 10:58:37,975 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd700d2a774ad3ca11fe220b69fa701cbe412e1 [2018-11-10 10:58:38,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:58:38,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:58:38,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:58:38,013 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:58:38,013 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:58:38,013 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex04_true-unreach-call_false-termination.i [2018-11-10 10:58:38,053 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/data/3920ac79b/1bd21f186728437597d046fbb621d0a1/FLAG588d10431 [2018-11-10 10:58:38,454 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:58:38,454 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/sv-benchmarks/c/loops/trex04_true-unreach-call_false-termination.i [2018-11-10 10:58:38,458 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/data/3920ac79b/1bd21f186728437597d046fbb621d0a1/FLAG588d10431 [2018-11-10 10:58:38,467 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/data/3920ac79b/1bd21f186728437597d046fbb621d0a1 [2018-11-10 10:58:38,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:58:38,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:58:38,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:58:38,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:58:38,473 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:58:38,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@680a2912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38, skipping insertion in model container [2018-11-10 10:58:38,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:58:38,497 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:58:38,607 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:58:38,609 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:58:38,621 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:58:38,630 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:58:38,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38 WrapperNode [2018-11-10 10:58:38,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:58:38,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:58:38,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:58:38,631 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:58:38,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:58:38,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:58:38,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:58:38,660 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:58:38,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... [2018-11-10 10:58:38,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:58:38,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:58:38,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:58:38,678 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:58:38,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/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 [2018-11-10 10:58:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:58:38,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:58:38,926 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:58:38,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:58:38 BoogieIcfgContainer [2018-11-10 10:58:38,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:58:38,927 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 10:58:38,927 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 10:58:38,930 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 10:58:38,931 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 10:58:38,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 10:58:38" (1/3) ... [2018-11-10 10:58:38,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2078c5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:58:38, skipping insertion in model container [2018-11-10 10:58:38,932 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 10:58:38,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:58:38" (2/3) ... [2018-11-10 10:58:38,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2078c5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:58:38, skipping insertion in model container [2018-11-10 10:58:38,932 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 10:58:38,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:58:38" (3/3) ... [2018-11-10 10:58:38,934 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex04_true-unreach-call_false-termination.i [2018-11-10 10:58:38,980 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:58:38,980 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 10:58:38,980 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 10:58:38,980 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 10:58:38,981 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:58:38,981 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:58:38,981 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 10:58:38,981 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:58:38,981 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 10:58:38,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2018-11-10 10:58:39,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 10:58:39,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 10:58:39,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 10:58:39,012 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:58:39,012 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 10:58:39,012 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 10:58:39,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2018-11-10 10:58:39,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 10:58:39,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 10:58:39,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 10:58:39,014 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:58:39,014 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 10:58:39,019 INFO L793 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 17#L23true assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 23#L25true assume !(main_~c1~1 % 256 != 0); 18#L25-2true assume !(main_~c2~1 % 256 != 0); 24#L26-1true main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 7#L28true assume !(main_~c1~1 % 256 != 0); 4#L28-2true assume !(main_~c2~1 % 256 != 0); 8#L30-2true [2018-11-10 10:58:39,020 INFO L795 eck$LassoCheckResult]: Loop: 8#L30-2true assume true; 10#L30true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 8#L30-2true [2018-11-10 10:58:39,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:58:39,024 INFO L82 PathProgramCache]: Analyzing trace with hash 179996080, now seen corresponding path program 1 times [2018-11-10 10:58:39,025 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:58:39,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:58:39,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:39,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:58:39,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:39,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:58:39,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2919, now seen corresponding path program 1 times [2018-11-10 10:58:39,103 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:58:39,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:58:39,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:39,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:58:39,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:39,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:58:39,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1177542998, now seen corresponding path program 1 times [2018-11-10 10:58:39,109 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:58:39,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:58:39,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:39,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:58:39,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:39,232 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 10:58:39,233 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 10:58:39,233 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 10:58:39,233 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 10:58:39,233 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 10:58:39,234 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,234 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 10:58:39,234 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 10:58:39,234 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex04_true-unreach-call_false-termination.i_Iteration1_Lasso [2018-11-10 10:58:39,234 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 10:58:39,234 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 10:58:39,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:39,394 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 10:58:39,395 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,417 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 10:58:39,417 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 10:58:39,426 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 10:58:39,426 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c1~1=0} Honda state: {ULTIMATE.start_main_~c1~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,445 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 10:58:39,445 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 10:58:39,452 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 10:58:39,453 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c2~1=0} Honda state: {ULTIMATE.start_main_~c2~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,470 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 10:58:39,470 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 10:58:39,472 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 10:58:39,472 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,489 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 10:58:39,489 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 10:58:39,492 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 10:58:39,492 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,509 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 10:58:39,510 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 10:58:39,512 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 10:58:39,512 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,528 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 10:58:39,528 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 10:58:39,530 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 10:58:39,531 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,547 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 10:58:39,547 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:39,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 10:58:39,566 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 10:58:49,016 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 10:58:49,018 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 10:58:49,018 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 10:58:49,018 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 10:58:49,018 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 10:58:49,018 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 10:58:49,019 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 10:58:49,019 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 10:58:49,019 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 10:58:49,019 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex04_true-unreach-call_false-termination.i_Iteration1_Lasso [2018-11-10 10:58:49,019 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 10:58:49,019 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 10:58:49,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 10:58:49,168 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 10:58:49,171 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 10:58:49,173 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 10:58:49,174 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 10:58:49,175 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 10:58:49,175 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 10:58:49,176 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 10:58:49,176 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 10:58:49,178 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 10:58:49,178 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 10:58:49,181 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 10:58:49,182 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 10:58:49,182 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 10:58:49,183 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 10:58:49,183 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 10:58:49,183 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 10:58:49,183 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 10:58:49,184 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 10:58:49,184 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 10:58:49,185 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 10:58:49,186 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 10:58:49,186 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 10:58:49,186 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 10:58:49,187 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 10:58:49,187 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 10:58:49,190 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 10:58:49,190 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 10:58:49,232 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 10:58:49,246 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 10:58:49,246 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 10:58:49,248 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 10:58:49,250 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 10:58:49,250 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 10:58:49,251 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~d~0 - 1 >= 0] [2018-11-10 10:58:49,264 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 10:58:49,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:58:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:58:49,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:58:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:58:49,313 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 10:58:49,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 10:58:49,325 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-10 10:58:49,326 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states. Second operand 4 states. [2018-11-10 10:58:49,395 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states.. Second operand 4 states. Result 74 states and 99 transitions. Complement of second has 8 states. [2018-11-10 10:58:49,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2018-11-10 10:58:49,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 10:58:49,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2018-11-10 10:58:49,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 72 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-10 10:58:49,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 10:58:49,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 72 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-10 10:58:49,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 10:58:49,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 72 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-10 10:58:49,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 10:58:49,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 99 transitions. [2018-11-10 10:58:49,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-10 10:58:49,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 30 states and 44 transitions. [2018-11-10 10:58:49,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-10 10:58:49,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-10 10:58:49,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 44 transitions. [2018-11-10 10:58:49,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 10:58:49,408 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 44 transitions. [2018-11-10 10:58:49,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 44 transitions. [2018-11-10 10:58:49,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2018-11-10 10:58:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 10:58:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 40 transitions. [2018-11-10 10:58:49,428 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2018-11-10 10:58:49,428 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2018-11-10 10:58:49,428 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 10:58:49,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 40 transitions. [2018-11-10 10:58:49,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 10:58:49,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 10:58:49,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 10:58:49,431 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:58:49,431 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 10:58:49,431 INFO L793 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 176#L23 assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 182#L25 assume main_~c1~1 % 256 != 0;main_~d~0 := main_~d~0 - 1; 183#L25-2 assume !(main_~c2~1 % 256 != 0); 181#L26-1 main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 172#L28 assume !(main_~c1~1 % 256 != 0); 173#L28-2 assume !(main_~c2~1 % 256 != 0); 170#L30-2 [2018-11-10 10:58:49,431 INFO L795 eck$LassoCheckResult]: Loop: 170#L30-2 assume true; 171#L30 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 170#L30-2 [2018-11-10 10:58:49,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:58:49,432 INFO L82 PathProgramCache]: Analyzing trace with hash 178149038, now seen corresponding path program 1 times [2018-11-10 10:58:49,432 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:58:49,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:58:49,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:49,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:58:49,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:49,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:58:49,445 INFO L82 PathProgramCache]: Analyzing trace with hash 2919, now seen corresponding path program 2 times [2018-11-10 10:58:49,445 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:58:49,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:58:49,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:49,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:58:49,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:49,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:58:49,450 INFO L82 PathProgramCache]: Analyzing trace with hash -597464364, now seen corresponding path program 1 times [2018-11-10 10:58:49,450 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:58:49,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:58:49,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:49,451 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 10:58:49,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:58:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:58:49,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 10:58:49 BoogieIcfgContainer [2018-11-10 10:58:49,545 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 10:58:49,545 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:58:49,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:58:49,546 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:58:49,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:58:38" (3/4) ... [2018-11-10 10:58:49,548 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-10 10:58:49,580 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_191fd086-0787-4414-9c4f-20002ebe69d5/bin-2019/uautomizer/witness.graphml [2018-11-10 10:58:49,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:58:49,581 INFO L168 Benchmark]: Toolchain (without parser) took 11112.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 953.8 MB in the beginning and 989.7 MB in the end (delta: -35.9 MB). Peak memory consumption was 115.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:58:49,582 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:58:49,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:58:49,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.65 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:58:49,583 INFO L168 Benchmark]: Boogie Preprocessor took 18.00 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:58:49,584 INFO L168 Benchmark]: RCFGBuilder took 248.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:58:49,584 INFO L168 Benchmark]: BuchiAutomizer took 10618.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 147.2 MB). Peak memory consumption was 147.2 MB. Max. memory is 11.5 GB. [2018-11-10 10:58:49,585 INFO L168 Benchmark]: Witness Printer took 34.96 ms. Allocated memory is still 1.2 GB. Free memory is still 989.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:58:49,587 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 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 28.65 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.00 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 248.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 10618.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 147.2 MB). Peak memory consumption was 147.2 MB. Max. memory is 11.5 GB. * Witness Printer took 34.96 ms. Allocated memory is still 1.2 GB. Free memory is still 989.7 MB. 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 (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function x and consists of 6 locations. The remainder module has 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 10.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 26 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 61 SDslu, 33 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf93 lsp67 ukn100 mio100 lsp100 div219 bol100 ite100 ukn100 eq143 hnf43 smp100 dnf100 smp100 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 65ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 9.5s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 30]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fa76d13=0, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2200066d=0, c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fc89b8e=0, c1=0, \result=0, x=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bf065f5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f1b4a6d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 20]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int d = 1; [L22] int x = __VERIFIER_nondet_int(); [L23] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L24] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L24] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L25] COND TRUE \read(c1) [L25] d = d - 1 [L26] COND FALSE !(\read(c2)) [L27] c1=__VERIFIER_nondet_bool() [L27] c2=__VERIFIER_nondet_bool() [L28] COND FALSE !(\read(c1)) [L29] COND FALSE !(\read(c2)) Loop: [L30] COND TRUE x>0 [L32] x=x-d End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...