./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 77773b6d98c13684866533d0b64942a0b1025f7d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:24:06,709 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:24:06,710 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:24:06,717 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:24:06,717 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:24:06,718 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:24:06,719 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:24:06,720 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:24:06,721 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:24:06,721 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:24:06,722 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:24:06,722 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:24:06,723 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:24:06,724 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:24:06,724 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:24:06,725 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:24:06,725 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:24:06,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:24:06,728 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:24:06,729 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:24:06,730 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:24:06,731 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:24:06,732 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:24:06,732 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:24:06,733 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:24:06,733 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:24:06,734 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:24:06,734 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:24:06,735 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:24:06,736 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:24:06,736 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:24:06,736 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:24:06,736 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:24:06,737 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:24:06,737 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:24:06,738 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:24:06,738 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 11:24:06,749 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:24:06,749 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:24:06,750 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:24:06,750 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:24:06,750 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:24:06,751 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 11:24:06,751 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 11:24:06,751 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 11:24:06,751 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 11:24:06,751 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 11:24:06,751 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 11:24:06,751 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:24:06,752 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:24:06,752 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:24:06,752 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:24:06,752 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:24:06,752 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:24:06,752 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 11:24:06,752 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 11:24:06,753 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 11:24:06,753 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:24:06,753 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:24:06,753 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 11:24:06,753 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:24:06,753 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 11:24:06,753 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:24:06,754 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:24:06,754 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 11:24:06,754 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:24:06,754 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:24:06,754 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 11:24:06,755 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 11:24:06,755 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_ef37f811-99fc-4676-8042-20b57256147a/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 -> 77773b6d98c13684866533d0b64942a0b1025f7d [2018-11-28 11:24:06,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:24:06,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:24:06,789 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:24:06,790 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:24:06,790 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:24:06,791 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/../../sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-28 11:24:06,829 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/data/1f0fb9658/e35ce4dea8f24fb9965df2b9bba873d2/FLAGf03707594 [2018-11-28 11:24:07,214 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:24:07,215 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-28 11:24:07,218 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/data/1f0fb9658/e35ce4dea8f24fb9965df2b9bba873d2/FLAGf03707594 [2018-11-28 11:24:07,227 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/data/1f0fb9658/e35ce4dea8f24fb9965df2b9bba873d2 [2018-11-28 11:24:07,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:24:07,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:24:07,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:24:07,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:24:07,233 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:24:07,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfc91c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07, skipping insertion in model container [2018-11-28 11:24:07,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:24:07,255 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:24:07,344 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:24:07,346 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:24:07,357 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:24:07,365 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:24:07,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07 WrapperNode [2018-11-28 11:24:07,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:24:07,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:24:07,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:24:07,366 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:24:07,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:24:07,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:24:07,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:24:07,387 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:24:07,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... [2018-11-28 11:24:07,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:24:07,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:24:07,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:24:07,437 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:24:07,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:24:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:24:07,590 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:24:07,590 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-28 11:24:07,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:24:07 BoogieIcfgContainer [2018-11-28 11:24:07,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:24:07,591 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 11:24:07,591 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 11:24:07,594 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 11:24:07,595 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:24:07,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:24:07" (1/3) ... [2018-11-28 11:24:07,596 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25adbed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:24:07, skipping insertion in model container [2018-11-28 11:24:07,596 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:24:07,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:07" (2/3) ... [2018-11-28 11:24:07,597 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25adbed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:24:07, skipping insertion in model container [2018-11-28 11:24:07,597 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:24:07,597 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:24:07" (3/3) ... [2018-11-28 11:24:07,598 INFO L375 chiAutomizerObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-11-28 11:24:07,648 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:24:07,648 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 11:24:07,649 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 11:24:07,649 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 11:24:07,649 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:24:07,649 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:24:07,649 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 11:24:07,649 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:24:07,649 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 11:24:07,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 11:24:07,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:24:07,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:24:07,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:24:07,683 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 11:24:07,683 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:24:07,683 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 11:24:07,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 11:24:07,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:24:07,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:24:07,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:24:07,685 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 11:24:07,685 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:24:07,690 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L17true assume !!(main_~x~0 > -100); 6#L18true assume !!(main_~x~0 < 200); 7#L19true assume !!(main_~z~0 > 100); 9#L20true assume !!(main_~z~0 < 200); 11#L24-2true [2018-11-28 11:24:07,690 INFO L796 eck$LassoCheckResult]: Loop: 11#L24-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 14#L24true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 11#L24-2true [2018-11-28 11:24:07,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:07,695 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2018-11-28 11:24:07,697 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:07,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:07,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:07,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:07,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:07,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:07,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 1 times [2018-11-28 11:24:07,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:07,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:07,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:07,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:07,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:07,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:07,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2018-11-28 11:24:07,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:07,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:07,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:07,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:07,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:07,855 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:24:07,855 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:24:07,856 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:24:07,856 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:24:07,856 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:24:07,856 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:07,856 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:24:07,856 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:24:07,856 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 11:24:07,856 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:24:07,857 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:24:07,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:07,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:07,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:07,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,019 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:24:08,020 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:08,038 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,038 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,053 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:08,053 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Honda state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:08,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,069 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,071 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:08,071 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:08,087 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,087 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,102 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:08,102 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:08,104 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,104 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:08,120 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:24:08,120 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,137 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:24:08,138 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:24:08,138 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:24:08,138 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:24:08,138 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:24:08,139 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:24:08,139 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:08,139 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:24:08,139 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:24:08,139 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 11:24:08,139 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:24:08,139 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:24:08,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,211 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:24:08,214 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:24:08,216 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 [2018-11-28 11:24:08,217 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:08,217 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:08,217 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:08,217 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:08,217 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:08,219 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:08,220 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:08,228 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:08,229 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 [2018-11-28 11:24:08,229 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:08,230 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:08,230 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:08,231 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:08,231 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:08,231 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:08,231 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:08,232 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:08,233 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 [2018-11-28 11:24:08,233 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:08,233 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:08,233 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:08,233 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:08,235 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:08,236 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:08,236 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:08,237 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:08,238 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 [2018-11-28 11:24:08,238 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:08,238 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:08,238 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:08,238 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:08,239 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:08,239 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:08,239 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:08,244 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:24:08,247 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:24:08,248 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:24:08,249 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:24:08,249 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:24:08,249 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:24:08,249 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-28 11:24:08,250 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:24:08,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:08,292 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:08,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:08,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:08,317 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:24:08,318 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2018-11-28 11:24:08,358 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 42 states and 55 transitions. Complement of second has 8 states. [2018-11-28 11:24:08,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 11:24:08,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:24:08,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2018-11-28 11:24:08,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 11:24:08,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:08,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 11:24:08,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:08,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 11:24:08,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:08,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 55 transitions. [2018-11-28 11:24:08,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:24:08,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 11 states and 14 transitions. [2018-11-28 11:24:08,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-28 11:24:08,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-28 11:24:08,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-28 11:24:08,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:24:08,371 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 11:24:08,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-28 11:24:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 11:24:08,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 11:24:08,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-28 11:24:08,387 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 11:24:08,388 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 11:24:08,388 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 11:24:08,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-28 11:24:08,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:24:08,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:24:08,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:24:08,388 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:24:08,388 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:24:08,389 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 106#L17 assume !!(main_~x~0 > -100); 112#L18 assume !!(main_~x~0 < 200); 113#L19 assume !!(main_~z~0 > 100); 114#L20 assume !!(main_~z~0 < 200); 115#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 111#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 107#L24-2 [2018-11-28 11:24:08,389 INFO L796 eck$LassoCheckResult]: Loop: 107#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 108#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 107#L24-2 [2018-11-28 11:24:08,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:08,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 1 times [2018-11-28 11:24:08,389 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:08,389 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:08,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:08,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:08,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 2 times [2018-11-28 11:24:08,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:08,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:08,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:08,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:08,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954034, now seen corresponding path program 1 times [2018-11-28 11:24:08,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:08,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:08,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,407 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:24:08,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,435 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:24:08,436 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:24:08,436 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:24:08,436 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:24:08,436 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:24:08,436 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:08,436 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:24:08,436 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:24:08,436 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 11:24:08,436 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:24:08,437 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:24:08,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,528 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:24:08,528 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:08,534 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,535 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,550 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:08,550 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:08,554 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,555 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,565 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:08,565 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Honda state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/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 [2018-11-28 11:24:08,581 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,581 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,583 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:08,583 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:08,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,607 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:08,625 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:24:08,625 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,643 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:24:08,644 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:24:08,644 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:24:08,644 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:24:08,644 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:24:08,645 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:24:08,645 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:08,645 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:24:08,645 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:24:08,645 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 11:24:08,645 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:24:08,645 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:24:08,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,709 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:24:08,709 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:24:08,710 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 [2018-11-28 11:24:08,710 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:08,710 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:08,711 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:08,711 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:08,711 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:08,711 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:08,711 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:08,713 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:08,713 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 [2018-11-28 11:24:08,714 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:08,714 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:08,714 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:08,714 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:08,714 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:08,715 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:08,715 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:08,716 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:08,716 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 [2018-11-28 11:24:08,717 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:08,717 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:08,717 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:08,717 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:08,717 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:08,719 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:08,719 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:08,723 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:08,724 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 [2018-11-28 11:24:08,724 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:08,725 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:08,725 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:08,725 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:08,725 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:08,728 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:08,728 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:08,731 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:24:08,736 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:24:08,736 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:24:08,736 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:24:08,736 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:24:08,736 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:24:08,737 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-28 11:24:08,737 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:24:08,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:08,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:08,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:08,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:08,811 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:24:08,812 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 11:24:08,832 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2018-11-28 11:24:08,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:24:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:24:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 11:24:08,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 11:24:08,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:08,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 11:24:08,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:08,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-28 11:24:08,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:08,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-11-28 11:24:08,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:24:08,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2018-11-28 11:24:08,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-28 11:24:08,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 11:24:08,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2018-11-28 11:24:08,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:24:08,836 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 11:24:08,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2018-11-28 11:24:08,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 11:24:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 11:24:08,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2018-11-28 11:24:08,838 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 11:24:08,838 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 11:24:08,838 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 11:24:08,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2018-11-28 11:24:08,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:24:08,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:24:08,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:24:08,840 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-28 11:24:08,840 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:24:08,840 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 180#L17 assume !!(main_~x~0 > -100); 186#L18 assume !!(main_~x~0 < 200); 187#L19 assume !!(main_~z~0 > 100); 189#L20 assume !!(main_~z~0 < 200); 190#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 185#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 188#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 191#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 181#L24-2 [2018-11-28 11:24:08,840 INFO L796 eck$LassoCheckResult]: Loop: 181#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 182#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 181#L24-2 [2018-11-28 11:24:08,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:08,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954036, now seen corresponding path program 2 times [2018-11-28 11:24:08,841 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:08,841 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:08,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:08,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:08,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 3 times [2018-11-28 11:24:08,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:08,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:08,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,859 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:24:08,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:08,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1084083785, now seen corresponding path program 2 times [2018-11-28 11:24:08,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:08,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:08,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,866 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:24:08,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:08,895 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:24:08,895 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:24:08,895 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:24:08,895 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:24:08,895 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:24:08,895 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:08,895 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:24:08,896 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:24:08,896 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-28 11:24:08,896 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:24:08,896 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:24:08,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:08,967 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:24:08,968 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:08,975 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,975 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:08,990 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:08,991 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:08,993 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:08,993 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,010 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:24:09,010 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:09,026 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:24:09,027 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:24:09,028 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:24:09,028 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:24:09,028 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:24:09,028 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:24:09,028 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,028 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:24:09,028 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:24:09,028 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-28 11:24:09,028 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:24:09,028 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:24:09,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,106 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:24:09,106 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:24:09,106 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 [2018-11-28 11:24:09,107 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:09,107 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:09,108 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:09,108 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:09,108 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:09,108 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:09,108 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:09,109 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:09,109 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 [2018-11-28 11:24:09,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:09,110 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:09,110 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:09,110 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:09,110 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:09,111 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:09,111 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:09,113 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:24:09,115 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:24:09,115 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:24:09,115 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:24:09,115 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:24:09,115 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:24:09,116 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-28 11:24:09,116 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:24:09,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:09,132 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:09,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:09,144 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:24:09,144 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 11:24:09,155 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2018-11-28 11:24:09,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:24:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:24:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 11:24:09,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 11:24:09,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:09,156 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:24:09,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:09,169 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:09,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:09,178 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:24:09,178 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 11:24:09,185 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2018-11-28 11:24:09,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:24:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:24:09,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 11:24:09,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 11:24:09,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:09,186 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:24:09,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:09,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:09,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:09,208 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:24:09,208 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 11:24:09,216 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 19 states and 27 transitions. Complement of second has 4 states. [2018-11-28 11:24:09,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:24:09,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:24:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 11:24:09,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 11:24:09,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:09,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:24:09,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:09,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-28 11:24:09,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:09,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2018-11-28 11:24:09,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 11:24:09,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 23 transitions. [2018-11-28 11:24:09,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-28 11:24:09,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 11:24:09,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2018-11-28 11:24:09,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:24:09,220 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-28 11:24:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2018-11-28 11:24:09,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 9. [2018-11-28 11:24:09,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-28 11:24:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-11-28 11:24:09,221 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-28 11:24:09,221 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-28 11:24:09,221 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 11:24:09,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2018-11-28 11:24:09,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 11:24:09,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:24:09,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:24:09,222 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 11:24:09,222 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:24:09,222 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 379#L17 assume !!(main_~x~0 > -100); 384#L18 assume !!(main_~x~0 < 200); 385#L19 assume !!(main_~z~0 > 100); 386#L20 assume !!(main_~z~0 < 200); 380#L24-2 [2018-11-28 11:24:09,222 INFO L796 eck$LassoCheckResult]: Loop: 380#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 382#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 380#L24-2 [2018-11-28 11:24:09,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:09,222 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 2 times [2018-11-28 11:24:09,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:09,223 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:09,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:09,223 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:24:09,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:09,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:09,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2018-11-28 11:24:09,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:09,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:09,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:09,229 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:24:09,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:09,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:09,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 3 times [2018-11-28 11:24:09,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:09,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:09,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:09,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:09,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:24:09,267 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:24:09,267 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:24:09,267 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:24:09,267 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:24:09,267 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:24:09,267 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,267 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:24:09,267 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:24:09,267 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-28 11:24:09,267 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:24:09,268 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:24:09,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,315 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:24:09,316 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,317 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:09,317 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:09,320 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:09,320 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,334 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:09,335 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:09,337 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:09,337 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:09,352 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:09,357 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:24:09,357 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Honda state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,373 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:24:09,373 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef37f811-99fc-4676-8042-20b57256147a/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,391 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:24:09,391 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:24:09,407 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:24:09,409 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:24:09,409 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:24:09,409 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:24:09,409 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:24:09,409 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:24:09,409 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:24:09,409 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:24:09,409 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:24:09,409 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-28 11:24:09,409 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:24:09,409 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:24:09,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:24:09,463 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:24:09,463 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:24:09,464 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 [2018-11-28 11:24:09,464 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:09,464 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:09,464 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:09,464 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:09,464 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:09,465 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:09,465 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:09,465 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:09,465 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 [2018-11-28 11:24:09,466 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:09,466 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:09,466 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:09,466 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:09,466 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:09,466 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:09,466 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:09,467 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:24:09,467 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 [2018-11-28 11:24:09,467 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:24:09,467 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:24:09,467 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:24:09,468 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:24:09,468 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:24:09,468 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:24:09,468 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:24:09,470 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:24:09,472 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:24:09,472 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:24:09,472 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:24:09,472 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:24:09,472 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:24:09,472 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 11:24:09,473 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:24:09,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:09,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:09,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:09,494 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:24:09,495 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 11:24:09,502 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 15 states and 21 transitions. Complement of second has 4 states. [2018-11-28 11:24:09,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:24:09,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:24:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-28 11:24:09,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 11:24:09,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:09,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 11:24:09,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:09,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 11:24:09,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:24:09,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2018-11-28 11:24:09,504 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:24:09,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-28 11:24:09,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 11:24:09,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 11:24:09,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 11:24:09,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:24:09,504 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:24:09,504 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:24:09,504 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:24:09,504 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 11:24:09,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:24:09,505 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:24:09,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 11:24:09,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:24:09 BoogieIcfgContainer [2018-11-28 11:24:09,509 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 11:24:09,510 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:24:09,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:24:09,510 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:24:09,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:24:07" (3/4) ... [2018-11-28 11:24:09,513 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:24:09,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:24:09,513 INFO L168 Benchmark]: Toolchain (without parser) took 2284.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -97.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:09,514 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:24:09,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.93 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:09,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.63 ms. Allocated memory is still 1.0 GB. Free memory is still 943.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:24:09,515 INFO L168 Benchmark]: Boogie Preprocessor took 50.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:09,516 INFO L168 Benchmark]: RCFGBuilder took 153.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:09,516 INFO L168 Benchmark]: BuchiAutomizer took 1918.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:09,516 INFO L168 Benchmark]: Witness Printer took 2.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:24:09,518 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.93 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.63 ms. Allocated memory is still 1.0 GB. Free memory is still 943.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 153.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1918.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 53 SDslu, 11 SDs, 0 SdLazy, 42 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div463 bol100 ite100 ukn100 eq148 hnf47 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...