./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/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_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/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 0.1.23-5842f4b [2018-11-18 10:50:09,452 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:50:09,453 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:50:09,461 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:50:09,462 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:50:09,462 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:50:09,463 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:50:09,464 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:50:09,465 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:50:09,466 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:50:09,466 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:50:09,467 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:50:09,467 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:50:09,468 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:50:09,468 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:50:09,469 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:50:09,469 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:50:09,470 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:50:09,472 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:50:09,473 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:50:09,473 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:50:09,474 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:50:09,476 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:50:09,476 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:50:09,476 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:50:09,477 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:50:09,477 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:50:09,478 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:50:09,479 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:50:09,479 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:50:09,479 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:50:09,480 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:50:09,480 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:50:09,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:50:09,481 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:50:09,481 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:50:09,481 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 10:50:09,492 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:50:09,493 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:50:09,493 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:50:09,494 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:50:09,494 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:50:09,494 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 10:50:09,494 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 10:50:09,494 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 10:50:09,494 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 10:50:09,494 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 10:50:09,495 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 10:50:09,495 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:50:09,495 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:50:09,495 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:50:09,495 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:50:09,495 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:50:09,495 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:50:09,495 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 10:50:09,496 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 10:50:09,496 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 10:50:09,496 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:50:09,496 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:50:09,496 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 10:50:09,496 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:50:09,496 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 10:50:09,496 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:50:09,496 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:50:09,497 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 10:50:09,497 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:50:09,497 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:50:09,497 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 10:50:09,498 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 10:50:09,498 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_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:09,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:50:09,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:50:09,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:50:09,533 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:50:09,533 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:50:09,534 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex04_true-unreach-call_false-termination.i [2018-11-18 10:50:09,576 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/data/fd9f20b91/206773e29e6b42eaa9200a94ef209902/FLAG82648dd4b [2018-11-18 10:50:09,905 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:50:09,905 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/sv-benchmarks/c/loops/trex04_true-unreach-call_false-termination.i [2018-11-18 10:50:09,909 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/data/fd9f20b91/206773e29e6b42eaa9200a94ef209902/FLAG82648dd4b [2018-11-18 10:50:09,920 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/data/fd9f20b91/206773e29e6b42eaa9200a94ef209902 [2018-11-18 10:50:09,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:50:09,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:50:09,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:50:09,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:50:09,925 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:50:09,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:50:09" (1/1) ... [2018-11-18 10:50:09,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec7e158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:09, skipping insertion in model container [2018-11-18 10:50:09,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:50:09" (1/1) ... [2018-11-18 10:50:09,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:50:09,948 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:50:10,055 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:50:10,057 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:50:10,068 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:50:10,077 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:50:10,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10 WrapperNode [2018-11-18 10:50:10,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:50:10,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:50:10,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:50:10,078 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:50:10,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:50:10,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:50:10,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:50:10,101 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:50:10,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... [2018-11-18 10:50:10,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:50:10,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:50:10,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:50:10,114 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:50:10,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:50:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:50:10,296 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:50:10,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:50:10 BoogieIcfgContainer [2018-11-18 10:50:10,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:50:10,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 10:50:10,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 10:50:10,300 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 10:50:10,301 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:50:10,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 10:50:09" (1/3) ... [2018-11-18 10:50:10,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69144e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:50:10, skipping insertion in model container [2018-11-18 10:50:10,302 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:50:10,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:50:10" (2/3) ... [2018-11-18 10:50:10,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69144e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:50:10, skipping insertion in model container [2018-11-18 10:50:10,302 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:50:10,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:50:10" (3/3) ... [2018-11-18 10:50:10,304 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex04_true-unreach-call_false-termination.i [2018-11-18 10:50:10,339 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:50:10,340 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 10:50:10,340 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 10:50:10,340 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 10:50:10,340 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:50:10,340 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:50:10,340 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 10:50:10,340 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:50:10,340 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 10:50:10,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2018-11-18 10:50:10,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 10:50:10,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:50:10,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:50:10,369 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:50:10,369 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 10:50:10,369 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 10:50:10,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2018-11-18 10:50:10,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 10:50:10,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:50:10,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:50:10,371 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:50:10,371 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 10:50:10,376 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 17#L23true assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 23#L25true assume !(0 != main_~c1~1 % 256); 18#L25-2true assume !(0 != main_~c2~1 % 256); 24#L26-1true main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 7#L28true assume !(0 != main_~c1~1 % 256); 4#L28-2true assume !(0 != main_~c2~1 % 256); 8#L30-2true [2018-11-18 10:50:10,376 INFO L796 eck$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 [2018-11-18 10:50:10,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:50:10,381 INFO L82 PathProgramCache]: Analyzing trace with hash 179996080, now seen corresponding path program 1 times [2018-11-18 10:50:10,382 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:50:10,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:50:10,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:10,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:50:10,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:10,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:50:10,454 INFO L82 PathProgramCache]: Analyzing trace with hash 2919, now seen corresponding path program 1 times [2018-11-18 10:50:10,454 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:50:10,454 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:50:10,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:10,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:50:10,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:10,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:50:10,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1177542998, now seen corresponding path program 1 times [2018-11-18 10:50:10,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:50:10,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:50:10,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:10,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:50:10,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:10,569 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 10:50:10,570 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 10:50:10,570 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 10:50:10,570 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 10:50:10,570 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 10:50:10,570 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:50:10,570 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 10:50:10,570 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 10:50:10,571 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex04_true-unreach-call_false-termination.i_Iteration1_Lasso [2018-11-18 10:50:10,571 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 10:50:10,571 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 10:50:10,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:10,763 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 10:50:10,764 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,767 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:50:10,767 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:50:10,776 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:50:10,776 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c1~1=0} Honda state: {ULTIMATE.start_main_~c1~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,791 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:50:10,792 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:50:10,797 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:50:10,797 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c2~1=0} Honda state: {ULTIMATE.start_main_~c2~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:50:10,812 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:50:10,814 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:50:10,815 INFO L448 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_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,836 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:50:10,836 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:50:10,838 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:50:10,838 INFO L448 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_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,863 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:50:10,863 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:50:10,867 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:50:10,868 INFO L448 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_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:50:10,891 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:50:10,893 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 10:50:10,893 INFO L448 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_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,907 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 10:50:10,907 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/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 [2018-11-18 10:50:10,924 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 10:50:10,924 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 10:50:16,977 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 10:50:16,979 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 10:50:16,979 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 10:50:16,979 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 10:50:16,979 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 10:50:16,980 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 10:50:16,980 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 10:50:16,980 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 10:50:16,980 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 10:50:16,980 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex04_true-unreach-call_false-termination.i_Iteration1_Lasso [2018-11-18 10:50:16,980 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 10:50:16,980 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 10:50:16,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:16,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:16,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:16,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:16,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:16,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:16,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:16,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:16,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 10:50:17,107 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 10:50:17,112 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 10:50:17,113 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 [2018-11-18 10:50:17,114 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:50:17,114 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 10:50:17,115 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:50:17,115 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:50:17,115 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:50:17,117 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 10:50:17,117 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 10:50:17,119 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 10:50:17,120 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 [2018-11-18 10:50:17,120 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:50:17,120 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 10:50:17,121 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:50:17,121 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:50:17,121 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:50:17,121 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 10:50:17,121 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 10:50:17,122 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 10:50:17,123 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 [2018-11-18 10:50:17,123 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 10:50:17,123 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 10:50:17,123 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 10:50:17,124 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 10:50:17,126 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 10:50:17,126 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 10:50:17,160 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 10:50:17,172 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 10:50:17,172 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 10:50:17,174 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 10:50:17,177 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 10:50:17,177 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 10:50:17,178 INFO L520 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] [2018-11-18 10:50:17,180 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 10:50:17,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:50:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:50:17,258 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:50:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:50:17,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:50:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:50:17,282 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 [2018-11-18 10:50:17,283 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states. Second operand 4 states. [2018-11-18 10:50:17,373 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. [2018-11-18 10:50:17,374 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 [2018-11-18 10:50:17,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 10:50:17,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2018-11-18 10:50:17,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 72 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-18 10:50:17,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:50:17,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 72 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-18 10:50:17,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:50:17,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 72 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-18 10:50:17,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 10:50:17,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 99 transitions. [2018-11-18 10:50:17,384 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-18 10:50:17,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 30 states and 44 transitions. [2018-11-18 10:50:17,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-18 10:50:17,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-18 10:50:17,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 44 transitions. [2018-11-18 10:50:17,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:50:17,389 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 44 transitions. [2018-11-18 10:50:17,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 44 transitions. [2018-11-18 10:50:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2018-11-18 10:50:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 10:50:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 40 transitions. [2018-11-18 10:50:17,411 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2018-11-18 10:50:17,412 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2018-11-18 10:50:17,412 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 10:50:17,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 40 transitions. [2018-11-18 10:50:17,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 10:50:17,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:50:17,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:50:17,413 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:50:17,414 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 10:50:17,414 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 176#L23 assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 182#L25 assume 0 != main_~c1~1 % 256;main_~d~0 := main_~d~0 - 1; 183#L25-2 assume !(0 != main_~c2~1 % 256); 181#L26-1 main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 172#L28 assume !(0 != main_~c1~1 % 256); 173#L28-2 assume !(0 != main_~c2~1 % 256); 170#L30-2 [2018-11-18 10:50:17,414 INFO L796 eck$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 [2018-11-18 10:50:17,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:50:17,414 INFO L82 PathProgramCache]: Analyzing trace with hash 178149038, now seen corresponding path program 1 times [2018-11-18 10:50:17,414 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:50:17,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:50:17,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:17,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:50:17,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:17,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:50:17,426 INFO L82 PathProgramCache]: Analyzing trace with hash 2919, now seen corresponding path program 2 times [2018-11-18 10:50:17,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:50:17,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:50:17,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:17,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:50:17,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:17,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:50:17,432 INFO L82 PathProgramCache]: Analyzing trace with hash -597464364, now seen corresponding path program 1 times [2018-11-18 10:50:17,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:50:17,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:50:17,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:17,433 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:50:17,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:50:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:50:17,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 10:50:17 BoogieIcfgContainer [2018-11-18 10:50:17,504 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 10:50:17,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:50:17,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:50:17,504 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:50:17,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:50:10" (3/4) ... [2018-11-18 10:50:17,507 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 10:50:17,530 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bbddd5c3-8137-4592-8b1d-05a478320f12/bin-2019/uautomizer/witness.graphml [2018-11-18 10:50:17,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:50:17,530 INFO L168 Benchmark]: Toolchain (without parser) took 7608.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 959.1 MB in the beginning and 957.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 143.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:50:17,531 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:50:17,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:50:17,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.72 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:50:17,533 INFO L168 Benchmark]: Boogie Preprocessor took 12.66 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:50:17,533 INFO L168 Benchmark]: RCFGBuilder took 183.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:50:17,533 INFO L168 Benchmark]: BuchiAutomizer took 7206.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.1 MB in the end (delta: 163.5 MB). Peak memory consumption was 163.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:50:17,534 INFO L168 Benchmark]: Witness Printer took 25.87 ms. Allocated memory is still 1.2 GB. Free memory is still 957.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:50:17,536 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.37 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 22.72 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.66 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 183.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7206.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.1 MB in the end (delta: 163.5 MB). Peak memory consumption was 163.5 MB. Max. memory is 11.5 GB. * Witness Printer took 25.87 ms. Allocated memory is still 1.2 GB. Free memory is still 957.1 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 7.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 6.8s. 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: 54ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.1s - 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@388acf5d=0, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44157ed9=0, c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7affe361=0, c1=0, \result=0, x=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f8b8585=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1154f0e=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...