./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 ac73664c6b6c540fa41a6c75f0a1d02ae5fcc2e0 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 05:44:54,812 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 05:44:54,813 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 05:44:54,818 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 05:44:54,819 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 05:44:54,819 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 05:44:54,820 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 05:44:54,821 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 05:44:54,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 05:44:54,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 05:44:54,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 05:44:54,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 05:44:54,823 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 05:44:54,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 05:44:54,824 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 05:44:54,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 05:44:54,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 05:44:54,825 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 05:44:54,826 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 05:44:54,827 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 05:44:54,828 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 05:44:54,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 05:44:54,829 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 05:44:54,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 05:44:54,829 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 05:44:54,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 05:44:54,830 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 05:44:54,831 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 05:44:54,831 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 05:44:54,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 05:44:54,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 05:44:54,832 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 05:44:54,832 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 05:44:54,833 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 05:44:54,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 05:44:54,833 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 05:44:54,833 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 05:44:54,841 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 05:44:54,841 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 05:44:54,842 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 05:44:54,842 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 05:44:54,842 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 05:44:54,842 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 05:44:54,842 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 05:44:54,842 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 05:44:54,842 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 05:44:54,842 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 05:44:54,842 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 05:44:54,843 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 05:44:54,843 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 05:44:54,844 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 05:44:54,844 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 05:44:54,844 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 05:44:54,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 05:44:54,844 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 05:44:54,844 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 05:44:54,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 05:44:54,844 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 05:44:54,844 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 05:44:54,845 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 05:44:54,845 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_343fdb2d-10f5-4df9-9028-50520241dd6d/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 -> ac73664c6b6c540fa41a6c75f0a1d02ae5fcc2e0 [2018-12-09 05:44:54,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 05:44:54,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 05:44:54,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 05:44:54,871 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 05:44:54,871 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 05:44:54,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i [2018-12-09 05:44:54,907 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/data/99116acfe/11d6597aab364038b82a7ed928d82355/FLAGdc9583d51 [2018-12-09 05:44:55,373 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 05:44:55,374 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i [2018-12-09 05:44:55,378 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/data/99116acfe/11d6597aab364038b82a7ed928d82355/FLAGdc9583d51 [2018-12-09 05:44:55,388 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/data/99116acfe/11d6597aab364038b82a7ed928d82355 [2018-12-09 05:44:55,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 05:44:55,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 05:44:55,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 05:44:55,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 05:44:55,395 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 05:44:55,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4857c57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55, skipping insertion in model container [2018-12-09 05:44:55,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 05:44:55,412 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 05:44:55,507 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:44:55,510 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 05:44:55,520 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 05:44:55,528 INFO L195 MainTranslator]: Completed translation [2018-12-09 05:44:55,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55 WrapperNode [2018-12-09 05:44:55,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 05:44:55,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 05:44:55,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 05:44:55,529 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 05:44:55,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 05:44:55,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 05:44:55,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 05:44:55,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 05:44:55,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... [2018-12-09 05:44:55,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 05:44:55,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 05:44:55,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 05:44:55,560 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 05:44:55,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 05:44:55,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 05:44:55,733 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 05:44:55,733 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 05:44:55,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:44:55 BoogieIcfgContainer [2018-12-09 05:44:55,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 05:44:55,734 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 05:44:55,734 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 05:44:55,736 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 05:44:55,737 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:44:55,737 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 05:44:55" (1/3) ... [2018-12-09 05:44:55,738 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d4c2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 05:44:55, skipping insertion in model container [2018-12-09 05:44:55,738 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:44:55,738 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:55" (2/3) ... [2018-12-09 05:44:55,738 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17d4c2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 05:44:55, skipping insertion in model container [2018-12-09 05:44:55,738 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 05:44:55,738 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:44:55" (3/3) ... [2018-12-09 05:44:55,739 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_true-unreach-call_true-termination.i [2018-12-09 05:44:55,770 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 05:44:55,771 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 05:44:55,771 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 05:44:55,771 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 05:44:55,771 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 05:44:55,771 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 05:44:55,771 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 05:44:55,771 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 05:44:55,771 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 05:44:55,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2018-12-09 05:44:55,793 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-12-09 05:44:55,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:44:55,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:44:55,797 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 05:44:55,797 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 05:44:55,797 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 05:44:55,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2018-12-09 05:44:55,798 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-12-09 05:44:55,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:44:55,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:44:55,799 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 05:44:55,799 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 05:44:55,803 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 15#L36true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 28#L13true assume !!(f_~k~0 <= 1073741823); 13#L16-2true [2018-12-09 05:44:55,803 INFO L796 eck$LassoCheckResult]: Loop: 13#L16-2true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 13#L16-2true [2018-12-09 05:44:55,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:44:55,807 INFO L82 PathProgramCache]: Analyzing trace with hash 30886, now seen corresponding path program 1 times [2018-12-09 05:44:55,808 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:44:55,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:44:55,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:44:55,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:44:55,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:44:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:44:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:44:55,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:44:55,868 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-09 05:44:55,868 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:44:55,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:44:55,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:44:55,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:44:55,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:44:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:44:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:44:55,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:44:55,873 INFO L82 PathProgramCache]: Analyzing trace with hash 957485, now seen corresponding path program 1 times [2018-12-09 05:44:55,873 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:44:55,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:44:55,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:44:55,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:44:55,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:44:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:44:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:44:55,932 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:44:55,933 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:44:55,933 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:44:55,933 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:44:55,933 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:44:55,933 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:44:55,933 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:44:55,933 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:44:55,933 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration1_Lasso [2018-12-09 05:44:55,933 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:44:55,933 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:44:55,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:55,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:44:56,061 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:44:56,061 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,064 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,064 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,070 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,070 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,094 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,095 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,097 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,097 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,111 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,111 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,113 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,113 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,128 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,130 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,130 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,145 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,145 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,147 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,147 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,161 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,162 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,163 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,163 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,178 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,178 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,184 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,184 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-191} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,198 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,198 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,200 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,200 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,215 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,215 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:44:56,217 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:44:56,217 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,232 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:44:56,232 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:44:56,251 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:44:56,251 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:09,657 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:45:09,663 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:09,663 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:09,663 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:09,663 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:09,663 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:45:09,663 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:09,664 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:09,664 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:09,664 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration1_Lasso [2018-12-09 05:45:09,664 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:09,664 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:09,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:09,771 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:09,774 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:45:09,775 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 [2018-12-09 05:45:09,776 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:09,776 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:09,777 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:09,777 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:09,777 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:09,778 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:09,779 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:09,781 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:09,781 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 [2018-12-09 05:45:09,782 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:09,782 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:09,782 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:09,782 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:09,782 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:09,783 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:09,783 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:09,783 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:09,784 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 [2018-12-09 05:45:09,784 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:09,784 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:09,784 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:09,784 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:09,784 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:09,785 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:09,785 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:09,785 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:09,786 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 [2018-12-09 05:45:09,786 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:09,786 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:09,786 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:09,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:09,786 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:09,787 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:09,787 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:09,787 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:09,787 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 [2018-12-09 05:45:09,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:09,788 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:09,788 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:09,788 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:09,788 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:09,788 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:09,788 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:09,789 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:09,789 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 [2018-12-09 05:45:09,790 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:09,790 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:09,790 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:09,790 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:09,791 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:45:09,791 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:45:09,796 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:09,797 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 [2018-12-09 05:45:09,797 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:09,797 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:09,797 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:09,798 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:09,800 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:45:09,800 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:45:09,822 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:45:09,835 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 05:45:09,835 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 05:45:09,837 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:45:09,838 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:45:09,839 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:45:09,839 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-12-09 05:45:09,841 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:45:09,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:45:09,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:45:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:45:09,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:45:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:45:09,904 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-09 05:45:09,905 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states. Second operand 3 states. [2018-12-09 05:45:09,986 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states.. Second operand 3 states. Result 84 states and 128 transitions. Complement of second has 7 states. [2018-12-09 05:45:09,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:45:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 05:45:09,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2018-12-09 05:45:09,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-09 05:45:09,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:09,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-09 05:45:09,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:09,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-09 05:45:09,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:09,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 128 transitions. [2018-12-09 05:45:09,995 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-12-09 05:45:09,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 29 states and 37 transitions. [2018-12-09 05:45:09,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2018-12-09 05:45:09,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-12-09 05:45:10,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2018-12-09 05:45:10,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 05:45:10,000 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2018-12-09 05:45:10,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2018-12-09 05:45:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2018-12-09 05:45:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-09 05:45:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2018-12-09 05:45:10,018 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2018-12-09 05:45:10,018 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2018-12-09 05:45:10,018 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 05:45:10,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2018-12-09 05:45:10,018 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-12-09 05:45:10,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:45:10,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:45:10,019 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 05:45:10,019 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 05:45:10,019 INFO L794 eck$LassoCheckResult]: Stem: 171#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 172#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 174#L13-1 assume !!(f_~k~0 <= 1073741823); 168#L16-6 [2018-12-09 05:45:10,019 INFO L796 eck$LassoCheckResult]: Loop: 168#L16-6 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 168#L16-6 [2018-12-09 05:45:10,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:10,020 INFO L82 PathProgramCache]: Analyzing trace with hash 32998, now seen corresponding path program 1 times [2018-12-09 05:45:10,020 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:10,020 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:10,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:10,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:10,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:10,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:10,026 INFO L82 PathProgramCache]: Analyzing trace with hash 116, now seen corresponding path program 1 times [2018-12-09 05:45:10,026 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:10,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:10,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:10,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:10,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:10,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:10,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1023023, now seen corresponding path program 1 times [2018-12-09 05:45:10,030 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:10,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:10,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:10,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:10,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:10,068 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:10,068 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:10,068 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:10,068 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:10,068 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:45:10,068 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:10,068 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:10,068 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:10,069 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration2_Lasso [2018-12-09 05:45:10,069 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:10,069 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:10,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:10,165 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:10,165 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:45:10,167 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:10,167 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:10,169 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:10,169 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:45:10,184 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:10,184 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:10,185 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:10,186 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:45:10,201 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:10,201 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:10,202 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:10,203 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:45:10,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:10,218 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:10,219 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:10,220 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:45:10,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:10,235 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:10,236 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:10,236 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:45:10,252 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:10,252 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:10,254 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:10,254 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/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 [2018-12-09 05:45:10,270 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:10,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:10,272 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:10,272 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~d=0, ULTIMATE.start_f_#in~d=0} Honda state: {ULTIMATE.start_f_~d=2, ULTIMATE.start_f_#in~d=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:10,287 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:10,287 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:10,314 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:45:10,314 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:22,358 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:45:22,364 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:22,364 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:22,364 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:22,364 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:22,365 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:45:22,365 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:22,365 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:22,365 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:22,365 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration2_Lasso [2018-12-09 05:45:22,365 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:22,365 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:22,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,446 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:22,447 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:45:22,447 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 [2018-12-09 05:45:22,447 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:22,447 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:22,447 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:22,448 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:22,448 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:22,448 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:22,448 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:22,448 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:22,449 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 [2018-12-09 05:45:22,449 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:22,449 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:22,449 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:22,449 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:22,449 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:22,450 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:22,450 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:22,450 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:22,451 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 [2018-12-09 05:45:22,451 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:22,451 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:22,451 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:22,451 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:22,451 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:22,451 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:22,451 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:22,452 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:22,452 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 [2018-12-09 05:45:22,453 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:22,453 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:22,453 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:22,453 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:22,455 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:45:22,455 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:45:22,485 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:45:22,496 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-12-09 05:45:22,497 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-09 05:45:22,497 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:45:22,498 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:45:22,498 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:45:22,498 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~k~0, ULTIMATE.start_f_~z~0) = 1*ULTIMATE.start_f_~k~0 - 1*ULTIMATE.start_f_~z~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-12-09 05:45:22,501 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:45:22,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:45:22,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:45:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:45:22,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:45:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:45:22,533 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-09 05:45:22,533 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-12-09 05:45:22,559 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 29 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 38 states and 49 transitions. Complement of second has 6 states. [2018-12-09 05:45:22,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:45:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 05:45:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-12-09 05:45:22,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-09 05:45:22,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:22,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-09 05:45:22,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:22,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-09 05:45:22,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:22,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2018-12-09 05:45:22,561 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-12-09 05:45:22,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 30 states and 39 transitions. [2018-12-09 05:45:22,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2018-12-09 05:45:22,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-12-09 05:45:22,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2018-12-09 05:45:22,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 05:45:22,562 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-12-09 05:45:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2018-12-09 05:45:22,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2018-12-09 05:45:22,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 05:45:22,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2018-12-09 05:45:22,563 INFO L728 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2018-12-09 05:45:22,563 INFO L608 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2018-12-09 05:45:22,564 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 05:45:22,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2018-12-09 05:45:22,564 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 05:45:22,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:45:22,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:45:22,564 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:45:22,564 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 05:45:22,565 INFO L794 eck$LassoCheckResult]: Stem: 276#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 277#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 281#L13 assume !!(f_~k~0 <= 1073741823); 282#L16-2 assume !(f_~z~0 < f_~k~0); 283#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 284#L4 assume !(0 == __VERIFIER_assert_~cond); 280#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 269#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 270#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 275#L24-2 [2018-12-09 05:45:22,565 INFO L796 eck$LassoCheckResult]: Loop: 275#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 278#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 275#L24-2 [2018-12-09 05:45:22,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:22,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1466276473, now seen corresponding path program 1 times [2018-12-09 05:45:22,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:22,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:22,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:22,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:22,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:22,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:22,574 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 1 times [2018-12-09 05:45:22,574 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:22,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:22,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:22,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:22,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:22,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:22,578 INFO L82 PathProgramCache]: Analyzing trace with hash 342419296, now seen corresponding path program 1 times [2018-12-09 05:45:22,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:22,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:22,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:22,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:22,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:22,682 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:22,682 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:22,682 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:22,682 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:22,682 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:45:22,682 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:22,682 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:22,682 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:22,682 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration3_Lasso [2018-12-09 05:45:22,682 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:22,682 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:22,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:22,790 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:22,790 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:22,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:22,793 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:22,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:45:22,810 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:34,837 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:45:34,841 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:34,841 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:34,841 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:34,841 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:34,841 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:45:34,841 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:34,841 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:34,841 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:34,841 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration3_Lasso [2018-12-09 05:45:34,841 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:34,842 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:34,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:34,947 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:34,948 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:45:34,948 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 [2018-12-09 05:45:34,948 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:34,949 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:34,949 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:34,949 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:34,950 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:45:34,950 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:45:34,957 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:45:34,963 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-12-09 05:45:34,963 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-09 05:45:34,964 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:45:34,964 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:45:34,964 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:45:34,965 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-09 05:45:34,966 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:45:34,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:45:35,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:45:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:45:35,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:45:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:45:35,017 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 05:45:35,017 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-09 05:45:35,038 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 30 states and 39 transitions. Complement of second has 6 states. [2018-12-09 05:45:35,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:45:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:45:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-12-09 05:45:35,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-09 05:45:35,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:35,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-09 05:45:35,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:35,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 4 letters. [2018-12-09 05:45:35,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:35,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2018-12-09 05:45:35,039 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 05:45:35,040 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 38 transitions. [2018-12-09 05:45:35,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-12-09 05:45:35,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2018-12-09 05:45:35,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2018-12-09 05:45:35,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 05:45:35,040 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2018-12-09 05:45:35,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2018-12-09 05:45:35,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-12-09 05:45:35,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-09 05:45:35,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2018-12-09 05:45:35,041 INFO L728 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2018-12-09 05:45:35,042 INFO L608 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2018-12-09 05:45:35,042 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 05:45:35,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2018-12-09 05:45:35,042 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 05:45:35,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:45:35,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:45:35,042 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:45:35,042 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 05:45:35,042 INFO L794 eck$LassoCheckResult]: Stem: 395#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 396#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 402#L13-1 assume !!(f_~k~0 <= 1073741823); 391#L16-6 assume !(f_~z~0 < f_~k~0); 386#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 387#L4-3 assume !(0 == __VERIFIER_assert_~cond); 390#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 382#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 383#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 384#L24-5 [2018-12-09 05:45:35,043 INFO L796 eck$LassoCheckResult]: Loop: 384#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 385#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 384#L24-5 [2018-12-09 05:45:35,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:35,043 INFO L82 PathProgramCache]: Analyzing trace with hash 925850489, now seen corresponding path program 1 times [2018-12-09 05:45:35,043 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:35,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:35,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:35,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:35,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:35,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:35,049 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 1 times [2018-12-09 05:45:35,049 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:35,049 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:35,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:35,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:35,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:35,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:35,052 INFO L82 PathProgramCache]: Analyzing trace with hash 684093600, now seen corresponding path program 1 times [2018-12-09 05:45:35,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:35,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:35,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:35,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:35,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:35,135 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:35,135 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:35,135 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:35,135 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:35,135 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:45:35,135 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:35,136 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:35,136 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:35,136 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration4_Lasso [2018-12-09 05:45:35,136 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:35,136 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:35,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:35,244 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:35,245 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:35,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:35,247 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:35,249 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:35,249 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:35,273 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:35,273 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:35,279 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:35,279 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-256, ULTIMATE.start_f_~c~0=-256} Honda state: {ULTIMATE.start_f_#t~nondet3=-256, ULTIMATE.start_f_~c~0=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:35,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:35,295 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:35,299 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:35,300 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:35,315 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:35,315 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:35,341 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:45:35,341 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:46,535 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 05:45:46,539 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:46,539 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:46,539 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:46,539 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:46,539 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:45:46,539 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:46,539 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:46,539 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:46,539 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration4_Lasso [2018-12-09 05:45:46,540 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:46,540 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:46,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,655 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:46,655 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:45:46,655 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 [2018-12-09 05:45:46,655 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:46,655 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:45:46,656 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:46,656 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:46,656 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:46,656 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:45:46,656 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:45:46,656 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:46,656 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 [2018-12-09 05:45:46,657 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:46,657 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:46,657 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:46,657 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:46,658 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:45:46,658 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:45:46,660 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:46,660 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 [2018-12-09 05:45:46,661 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:46,661 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:46,661 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:46,661 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:46,662 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:45:46,662 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:45:46,664 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:46,664 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 [2018-12-09 05:45:46,665 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:46,665 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:46,665 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:46,665 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:46,666 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:45:46,666 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:45:46,669 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:45:46,669 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 [2018-12-09 05:45:46,670 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:45:46,670 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:45:46,670 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:45:46,670 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:45:46,672 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:45:46,672 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:45:46,680 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:45:46,683 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 05:45:46,683 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 05:45:46,683 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:45:46,685 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:45:46,685 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:45:46,685 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-09 05:45:46,687 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:45:46,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:45:46,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:45:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:45:46,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:45:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:45:46,734 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 05:45:46,734 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-12-09 05:45:46,754 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 37 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 34 states and 45 transitions. Complement of second has 6 states. [2018-12-09 05:45:46,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:45:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:45:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-12-09 05:45:46,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-09 05:45:46,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:46,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-09 05:45:46,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:46,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 4 letters. [2018-12-09 05:45:46,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:45:46,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 45 transitions. [2018-12-09 05:45:46,756 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 05:45:46,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 33 states and 44 transitions. [2018-12-09 05:45:46,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-12-09 05:45:46,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-12-09 05:45:46,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2018-12-09 05:45:46,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 05:45:46,757 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-12-09 05:45:46,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2018-12-09 05:45:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-12-09 05:45:46,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-09 05:45:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2018-12-09 05:45:46,759 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-12-09 05:45:46,759 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-12-09 05:45:46,759 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-09 05:45:46,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2018-12-09 05:45:46,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 05:45:46,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:45:46,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:45:46,760 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:45:46,760 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 05:45:46,761 INFO L794 eck$LassoCheckResult]: Stem: 526#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 527#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 535#L13 assume !!(f_~k~0 <= 1073741823); 536#L16-2 assume !(f_~z~0 < f_~k~0); 537#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 538#L4 assume !(0 == __VERIFIER_assert_~cond); 534#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 519#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 520#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 524#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 532#L24 assume 0 != f_~c~0 % 256; 539#L25 [2018-12-09 05:45:46,761 INFO L796 eck$LassoCheckResult]: Loop: 539#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 528#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 529#L24 assume 0 != f_~c~0 % 256; 539#L25 [2018-12-09 05:45:46,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:46,761 INFO L82 PathProgramCache]: Analyzing trace with hash 342419292, now seen corresponding path program 1 times [2018-12-09 05:45:46,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:46,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:46,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:46,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:46,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:46,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:46,769 INFO L82 PathProgramCache]: Analyzing trace with hash 91200, now seen corresponding path program 1 times [2018-12-09 05:45:46,769 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:46,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:46,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:46,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:46,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:46,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:45:46,773 INFO L82 PathProgramCache]: Analyzing trace with hash 465861381, now seen corresponding path program 1 times [2018-12-09 05:45:46,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:45:46,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:45:46,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:46,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:45:46,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:45:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:45:46,803 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:46,803 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:46,803 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:46,804 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:46,804 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:45:46,804 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:46,804 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:46,804 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:46,804 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Loop [2018-12-09 05:45:46,804 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:46,804 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:46,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:46,871 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:46,871 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:46,873 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:46,873 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:46,887 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:46,887 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:46,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:46,890 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:46,896 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:46,896 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Honda state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:46,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:46,911 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:46,927 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:45:46,927 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:46,935 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:46,936 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:46,950 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:46,951 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:46,957 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:46,957 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-128, ULTIMATE.start_f_~c~0=-128} Honda state: {ULTIMATE.start_f_#t~nondet3=-128, ULTIMATE.start_f_~c~0=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-12-09 05:45:47,053 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:47,053 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:47,053 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:47,053 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:47,053 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:45:47,053 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:47,053 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:47,053 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:47,053 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Lasso [2018-12-09 05:45:47,053 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:47,053 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:47,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:45:47,214 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:45:47,214 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:47,215 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:47,215 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:47,221 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:47,221 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:47,245 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:47,245 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:47,247 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:47,247 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:47,262 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:47,262 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:47,272 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:45:47,272 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0, ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_#t~nondet4=255, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:47,287 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:45:47,287 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:47,304 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:45:47,304 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:45:59,986 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:45:59,990 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:45:59,990 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:45:59,990 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:45:59,990 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:45:59,990 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:45:59,990 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:45:59,990 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:45:59,991 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:45:59,991 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Lasso [2018-12-09 05:45:59,991 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:45:59,991 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:45:59,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,133 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:00,133 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:46:00,133 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 [2018-12-09 05:46:00,134 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:00,134 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:00,134 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:00,134 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:00,134 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:00,134 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:00,138 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:00,138 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 [2018-12-09 05:46:00,139 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:00,139 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:00,139 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:00,139 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:00,139 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:00,139 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:00,139 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:00,139 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:00,140 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 [2018-12-09 05:46:00,140 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:00,140 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:00,140 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:00,140 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:00,141 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:00,141 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:00,147 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:46:00,154 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-12-09 05:46:00,154 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-09 05:46:00,154 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:46:00,155 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:46:00,155 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:46:00,155 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-09 05:46:00,157 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:46:00,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:00,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:00,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:00,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:46:00,195 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-12-09 05:46:00,195 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 17 Second operand 5 states. [2018-12-09 05:46:00,221 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 42 states and 56 transitions. Complement of second has 7 states. [2018-12-09 05:46:00,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 05:46:00,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 05:46:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2018-12-09 05:46:00,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 3 letters. [2018-12-09 05:46:00,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:00,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 14 letters. Loop has 3 letters. [2018-12-09 05:46:00,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:00,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 6 letters. [2018-12-09 05:46:00,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:00,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2018-12-09 05:46:00,223 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-09 05:46:00,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 38 states and 51 transitions. [2018-12-09 05:46:00,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-12-09 05:46:00,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-12-09 05:46:00,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2018-12-09 05:46:00,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 05:46:00,223 INFO L705 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2018-12-09 05:46:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2018-12-09 05:46:00,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-12-09 05:46:00,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-09 05:46:00,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2018-12-09 05:46:00,226 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-12-09 05:46:00,226 INFO L608 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-12-09 05:46:00,226 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-09 05:46:00,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 50 transitions. [2018-12-09 05:46:00,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-09 05:46:00,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:46:00,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:46:00,227 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:46:00,227 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 05:46:00,227 INFO L794 eck$LassoCheckResult]: Stem: 677#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 678#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 683#L13-1 assume !!(f_~k~0 <= 1073741823); 673#L16-6 assume !(f_~z~0 < f_~k~0); 668#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 669#L4-3 assume !(0 == __VERIFIER_assert_~cond); 672#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 660#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 661#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 667#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 666#L24-3 assume 0 != f_~c~0 % 256; 675#L25-1 [2018-12-09 05:46:00,227 INFO L796 eck$LassoCheckResult]: Loop: 675#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 662#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 663#L24-3 assume 0 != f_~c~0 % 256; 675#L25-1 [2018-12-09 05:46:00,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:00,228 INFO L82 PathProgramCache]: Analyzing trace with hash 684093596, now seen corresponding path program 1 times [2018-12-09 05:46:00,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:00,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:00,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:00,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:46:00,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:00,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:00,234 INFO L82 PathProgramCache]: Analyzing trace with hash 156738, now seen corresponding path program 1 times [2018-12-09 05:46:00,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:00,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:00,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:00,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:46:00,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:00,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:00,237 INFO L82 PathProgramCache]: Analyzing trace with hash 212625863, now seen corresponding path program 1 times [2018-12-09 05:46:00,237 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:00,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:00,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:00,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:46:00,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:00,260 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:00,260 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:00,260 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:00,260 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:00,260 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:46:00,261 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,261 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:00,261 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:00,261 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Loop [2018-12-09 05:46:00,261 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:00,261 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:00,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,326 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:00,326 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,328 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:00,328 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:00,334 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:00,334 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=128, ULTIMATE.start_f_~c~0=128} Honda state: {ULTIMATE.start_f_#t~nondet3=128, ULTIMATE.start_f_~c~0=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,348 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:00,349 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:00,363 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:00,363 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,365 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:00,365 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:00,372 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:00,372 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-192, ULTIMATE.start_f_~y~0=64} Honda state: {ULTIMATE.start_f_#t~nondet4=-192, ULTIMATE.start_f_~y~0=64} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,387 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:00,387 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,402 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:46:00,402 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:00,410 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:00,410 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] [2018-12-09 05:46:00,493 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:00,493 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:00,493 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:00,493 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:00,493 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:46:00,493 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,493 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:00,493 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:00,493 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Lasso [2018-12-09 05:46:00,493 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:00,493 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:00,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:00,620 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:00,621 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,622 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:00,622 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:00,638 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:46:00,638 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:12,668 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:46:12,671 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:12,671 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:12,672 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:12,672 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:12,672 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:46:12,672 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:12,672 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:12,672 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:12,672 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Lasso [2018-12-09 05:46:12,672 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:12,672 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:12,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:12,801 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:12,802 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:46:12,802 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 [2018-12-09 05:46:12,802 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:12,802 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:12,802 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:12,802 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:12,803 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:12,803 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:12,807 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:46:12,811 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-12-09 05:46:12,811 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-09 05:46:12,812 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:46:12,812 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:46:12,812 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:46:12,812 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-09 05:46:12,814 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:46:12,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:12,848 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:12,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:12,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:46:12,865 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-12-09 05:46:12,865 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 20 Second operand 5 states. [2018-12-09 05:46:12,886 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 47 states and 63 transitions. Complement of second has 7 states. [2018-12-09 05:46:12,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 05:46:12,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 05:46:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2018-12-09 05:46:12,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 3 letters. [2018-12-09 05:46:12,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:12,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 14 letters. Loop has 3 letters. [2018-12-09 05:46:12,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:12,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 6 letters. [2018-12-09 05:46:12,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:12,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 63 transitions. [2018-12-09 05:46:12,889 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 05:46:12,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 43 states and 58 transitions. [2018-12-09 05:46:12,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-12-09 05:46:12,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-12-09 05:46:12,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 58 transitions. [2018-12-09 05:46:12,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 05:46:12,890 INFO L705 BuchiCegarLoop]: Abstraction has 43 states and 58 transitions. [2018-12-09 05:46:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 58 transitions. [2018-12-09 05:46:12,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2018-12-09 05:46:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 05:46:12,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2018-12-09 05:46:12,892 INFO L728 BuchiCegarLoop]: Abstraction has 42 states and 57 transitions. [2018-12-09 05:46:12,892 INFO L608 BuchiCegarLoop]: Abstraction has 42 states and 57 transitions. [2018-12-09 05:46:12,892 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-09 05:46:12,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 57 transitions. [2018-12-09 05:46:12,893 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 05:46:12,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:46:12,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:46:12,893 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:46:12,894 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 05:46:12,894 INFO L794 eck$LassoCheckResult]: Stem: 839#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 840#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 849#L13 assume !!(f_~k~0 <= 1073741823); 850#L16-2 assume !(f_~z~0 < f_~k~0); 847#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 848#L4 assume !(0 == __VERIFIER_assert_~cond); 846#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 830#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 831#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 835#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 857#L24 assume 0 != f_~c~0 % 256; 855#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 856#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 860#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 841#L24-2 [2018-12-09 05:46:12,894 INFO L796 eck$LassoCheckResult]: Loop: 841#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 842#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 841#L24-2 [2018-12-09 05:46:12,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:12,894 INFO L82 PathProgramCache]: Analyzing trace with hash 465861385, now seen corresponding path program 1 times [2018-12-09 05:46:12,894 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:12,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:12,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:12,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:46:12,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:12,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:12,902 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 2 times [2018-12-09 05:46:12,902 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:12,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:12,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:12,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:46:12,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:12,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:12,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1016194032, now seen corresponding path program 2 times [2018-12-09 05:46:12,905 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:12,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:12,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:12,906 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:12,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:13,007 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:13,007 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:13,007 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:13,007 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:13,007 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:46:13,007 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:13,007 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:13,007 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:13,007 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration7_Lasso [2018-12-09 05:46:13,007 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:13,007 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:13,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:13,135 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:13,135 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:13,137 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:13,137 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:13,140 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:13,140 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=0, ULTIMATE.start___VERIFIER_assert_~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:13,154 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:13,154 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:13,166 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:13,166 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:13,194 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:13,194 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:13,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:46:13,220 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:25,250 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:46:25,254 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:25,254 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:25,254 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:25,254 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:25,254 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:46:25,254 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,254 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:25,254 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:25,254 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration7_Lasso [2018-12-09 05:46:25,254 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:25,254 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:25,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,395 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:25,395 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:46:25,395 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 [2018-12-09 05:46:25,396 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,396 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,396 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,396 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,396 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:25,397 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:25,399 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:25,399 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 [2018-12-09 05:46:25,399 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,399 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,400 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,400 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,401 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:25,401 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:25,403 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:25,403 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 [2018-12-09 05:46:25,403 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,403 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:25,404 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,404 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,404 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,404 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:25,404 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:25,405 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:25,405 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 [2018-12-09 05:46:25,405 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,405 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,405 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,405 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,406 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:25,406 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:25,407 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:25,408 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 [2018-12-09 05:46:25,408 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,408 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,408 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,408 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,409 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:25,409 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:25,410 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:25,410 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 [2018-12-09 05:46:25,411 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,411 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:25,411 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,411 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,411 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,411 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:25,411 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:25,412 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:25,412 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 [2018-12-09 05:46:25,412 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,412 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:25,412 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,412 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,412 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,412 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:25,412 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:25,413 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:25,413 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 [2018-12-09 05:46:25,413 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,413 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:25,413 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,413 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,413 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,413 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:25,413 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:25,414 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:25,414 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 [2018-12-09 05:46:25,414 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:25,414 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:25,414 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:25,414 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:25,415 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:25,415 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:25,420 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:46:25,424 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 05:46:25,424 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 05:46:25,424 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:46:25,425 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:46:25,425 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:46:25,425 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-09 05:46:25,429 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:46:25,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:25,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:25,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:25,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:46:25,457 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 05:46:25,457 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 57 transitions. cyclomatic complexity: 23 Second operand 4 states. [2018-12-09 05:46:25,476 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 57 transitions. cyclomatic complexity: 23. Second operand 4 states. Result 60 states and 79 transitions. Complement of second has 6 states. [2018-12-09 05:46:25,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:46:25,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:46:25,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-12-09 05:46:25,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 05:46:25,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:25,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 05:46:25,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:25,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 4 letters. [2018-12-09 05:46:25,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:25,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 79 transitions. [2018-12-09 05:46:25,477 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 05:46:25,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 52 states and 69 transitions. [2018-12-09 05:46:25,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-12-09 05:46:25,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-12-09 05:46:25,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 69 transitions. [2018-12-09 05:46:25,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 05:46:25,478 INFO L705 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-12-09 05:46:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 69 transitions. [2018-12-09 05:46:25,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2018-12-09 05:46:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-09 05:46:25,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2018-12-09 05:46:25,480 INFO L728 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2018-12-09 05:46:25,480 INFO L608 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2018-12-09 05:46:25,480 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-12-09 05:46:25,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 67 transitions. [2018-12-09 05:46:25,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 05:46:25,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:46:25,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:46:25,480 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:46:25,480 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 05:46:25,480 INFO L794 eck$LassoCheckResult]: Stem: 1019#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1020#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1025#L13-1 assume !!(f_~k~0 <= 1073741823); 1015#L16-6 assume !(f_~z~0 < f_~k~0); 1010#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1011#L4-3 assume !(0 == __VERIFIER_assert_~cond); 1014#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1003#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1004#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1005#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1039#L24-3 assume 0 != f_~c~0 % 256; 1034#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1035#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1042#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1006#L24-5 [2018-12-09 05:46:25,481 INFO L796 eck$LassoCheckResult]: Loop: 1006#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1007#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1006#L24-5 [2018-12-09 05:46:25,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:25,481 INFO L82 PathProgramCache]: Analyzing trace with hash 212625867, now seen corresponding path program 1 times [2018-12-09 05:46:25,481 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:25,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:25,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:25,481 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:25,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:25,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:25,488 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 2 times [2018-12-09 05:46:25,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:25,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:25,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:25,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 05:46:25,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:25,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:25,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1824968078, now seen corresponding path program 2 times [2018-12-09 05:46:25,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:25,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:25,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:25,492 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:25,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:25,583 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:25,583 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:25,583 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:25,583 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:25,583 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:46:25,583 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,583 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:25,583 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:25,583 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration8_Lasso [2018-12-09 05:46:25,583 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:25,583 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:25,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:25,714 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:25,714 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,717 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:25,717 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:25,720 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:25,720 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=-1000000} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,734 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:25,734 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:25,739 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:25,739 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,753 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:25,753 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:25,762 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:25,762 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,776 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:25,776 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:25,779 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:25,779 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=0, ULTIMATE.start___VERIFIER_assert_~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,794 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:25,794 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:25,796 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:25,796 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:25,810 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:25,812 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:25,812 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,826 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:25,826 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:25,828 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:25,828 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:25,842 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:25,858 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:46:25,858 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:37,889 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:46:37,893 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:37,893 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:37,893 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:37,893 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:37,893 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:46:37,893 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:37,893 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:37,893 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:37,893 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration8_Lasso [2018-12-09 05:46:37,893 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:37,893 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:37,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:37,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,016 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:38,017 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:46:38,017 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 [2018-12-09 05:46:38,017 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:38,017 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:38,017 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:38,017 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:38,018 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:38,018 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:38,019 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:38,019 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 [2018-12-09 05:46:38,019 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:38,019 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:38,019 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:38,019 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:38,019 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:38,020 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:38,020 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:38,020 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 [2018-12-09 05:46:38,021 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:38,021 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:38,021 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:38,021 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:38,021 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:38,021 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:38,021 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:38,021 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:38,021 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 [2018-12-09 05:46:38,022 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:38,022 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:38,022 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:38,022 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:38,022 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:38,022 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:38,023 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:38,023 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 [2018-12-09 05:46:38,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:38,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:38,023 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:38,023 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:38,024 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:38,024 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:38,024 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:38,024 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 [2018-12-09 05:46:38,025 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:38,025 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:38,025 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:38,025 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:38,025 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:38,025 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:38,027 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:38,027 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 [2018-12-09 05:46:38,027 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:38,027 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:38,027 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:38,027 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:38,028 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:38,028 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:38,032 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:46:38,033 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 05:46:38,033 INFO L444 ModelExtractionUtils]: 12 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 05:46:38,034 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:46:38,034 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:46:38,034 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:46:38,034 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-09 05:46:38,036 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:46:38,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:38,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:38,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:38,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:46:38,067 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 05:46:38,067 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 67 transitions. cyclomatic complexity: 27 Second operand 4 states. [2018-12-09 05:46:38,084 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 67 transitions. cyclomatic complexity: 27. Second operand 4 states. Result 68 states and 89 transitions. Complement of second has 6 states. [2018-12-09 05:46:38,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:46:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:46:38,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-12-09 05:46:38,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 05:46:38,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:38,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 05:46:38,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:38,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 4 letters. [2018-12-09 05:46:38,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:38,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 89 transitions. [2018-12-09 05:46:38,086 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 05:46:38,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 60 states and 79 transitions. [2018-12-09 05:46:38,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-12-09 05:46:38,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-12-09 05:46:38,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2018-12-09 05:46:38,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 05:46:38,086 INFO L705 BuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2018-12-09 05:46:38,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2018-12-09 05:46:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2018-12-09 05:46:38,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-12-09 05:46:38,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2018-12-09 05:46:38,088 INFO L728 BuchiCegarLoop]: Abstraction has 58 states and 77 transitions. [2018-12-09 05:46:38,088 INFO L608 BuchiCegarLoop]: Abstraction has 58 states and 77 transitions. [2018-12-09 05:46:38,088 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-12-09 05:46:38,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 77 transitions. [2018-12-09 05:46:38,089 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 05:46:38,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:46:38,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:46:38,089 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:46:38,089 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 05:46:38,089 INFO L794 eck$LassoCheckResult]: Stem: 1220#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1221#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1228#L13 assume !!(f_~k~0 <= 1073741823); 1229#L16-2 assume !(f_~z~0 < f_~k~0); 1230#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1231#L4 assume !(0 == __VERIFIER_assert_~cond); 1227#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1210#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1211#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1219#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1223#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1224#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1225#L24 assume 0 != f_~c~0 % 256; 1245#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1244#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1241#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1240#L24-2 [2018-12-09 05:46:38,089 INFO L796 eck$LassoCheckResult]: Loop: 1240#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1239#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1240#L24-2 [2018-12-09 05:46:38,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:38,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1126180482, now seen corresponding path program 3 times [2018-12-09 05:46:38,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:38,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:38,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:38,090 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:38,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:38,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:38,095 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 3 times [2018-12-09 05:46:38,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:38,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:38,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:38,096 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:38,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:38,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:38,098 INFO L82 PathProgramCache]: Analyzing trace with hash -72313559, now seen corresponding path program 4 times [2018-12-09 05:46:38,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:38,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:38,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:38,098 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:38,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:38,217 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:38,218 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:38,218 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:38,218 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:38,218 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:46:38,218 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:38,218 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:38,218 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:38,218 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration9_Lasso [2018-12-09 05:46:38,218 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:38,218 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:38,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:38,335 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:38,335 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:38,338 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:38,338 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:38,341 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 05:46:38,341 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=-1000000} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:38,366 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:38,366 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:38,383 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:46:38,383 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:46:50,862 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:46:50,866 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:50,866 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:50,866 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:50,866 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:50,866 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:46:50,866 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:50,866 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:50,866 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:50,866 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration9_Lasso [2018-12-09 05:46:50,866 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:50,866 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:50,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:50,993 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:50,993 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:46:50,993 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 [2018-12-09 05:46:50,994 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:50,994 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:50,994 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:50,994 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:50,994 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:50,994 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:50,995 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:50,995 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 [2018-12-09 05:46:50,995 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:50,995 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:50,996 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:50,996 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:50,996 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:50,996 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:50,996 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:50,996 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:50,996 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 [2018-12-09 05:46:50,996 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:50,996 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:50,997 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:50,997 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:50,997 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:50,997 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:50,997 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:50,997 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:50,997 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 [2018-12-09 05:46:50,997 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:50,997 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:50,997 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:50,997 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:50,998 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:50,998 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:50,998 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:50,998 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:50,998 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 [2018-12-09 05:46:50,998 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:50,998 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:50,998 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:50,998 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:50,999 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:50,999 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:51,000 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:51,000 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 [2018-12-09 05:46:51,000 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:51,000 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:51,000 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:51,000 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:51,000 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:51,000 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:51,001 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:51,001 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:51,001 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 [2018-12-09 05:46:51,001 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:51,001 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:46:51,001 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:51,001 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:51,001 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:51,001 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:46:51,001 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:46:51,002 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:46:51,002 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 [2018-12-09 05:46:51,002 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:46:51,002 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:46:51,002 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:46:51,002 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:46:51,003 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:46:51,003 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:46:51,007 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:46:51,011 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-12-09 05:46:51,012 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-09 05:46:51,012 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:46:51,012 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:46:51,012 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:46:51,012 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-09 05:46:51,014 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:46:51,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:51,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:51,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:51,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:46:51,049 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 05:46:51,049 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-12-09 05:46:51,068 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 66 states and 85 transitions. Complement of second has 6 states. [2018-12-09 05:46:51,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:46:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:46:51,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-12-09 05:46:51,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 05:46:51,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:51,069 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 05:46:51,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:51,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:51,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:46:51,101 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 05:46:51,101 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-12-09 05:46:51,120 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 66 states and 85 transitions. Complement of second has 6 states. [2018-12-09 05:46:51,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:46:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:46:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-12-09 05:46:51,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 05:46:51,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:51,120 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 05:46:51,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:51,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:46:51,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:46:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:46:51,154 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 05:46:51,155 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-12-09 05:46:51,174 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 69 states and 90 transitions. Complement of second has 5 states. [2018-12-09 05:46:51,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 05:46:51,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 05:46:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2018-12-09 05:46:51,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 05:46:51,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:51,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 18 letters. Loop has 2 letters. [2018-12-09 05:46:51,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:51,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 4 letters. [2018-12-09 05:46:51,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:46:51,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 90 transitions. [2018-12-09 05:46:51,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 05:46:51,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 30 states and 39 transitions. [2018-12-09 05:46:51,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-12-09 05:46:51,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-12-09 05:46:51,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2018-12-09 05:46:51,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 05:46:51,177 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-12-09 05:46:51,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2018-12-09 05:46:51,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-09 05:46:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-09 05:46:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2018-12-09 05:46:51,178 INFO L728 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-12-09 05:46:51,178 INFO L608 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-12-09 05:46:51,178 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-12-09 05:46:51,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2018-12-09 05:46:51,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 05:46:51,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 05:46:51,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 05:46:51,179 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 05:46:51,179 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 05:46:51,179 INFO L794 eck$LassoCheckResult]: Stem: 1682#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1683#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1685#L13-1 assume !!(f_~k~0 <= 1073741823); 1675#L16-6 assume !(f_~z~0 < f_~k~0); 1676#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1684#L4-3 assume !(0 == __VERIFIER_assert_~cond); 1673#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1674#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1686#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1689#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1690#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1702#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1701#L24-3 assume 0 != f_~c~0 % 256; 1699#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1698#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1696#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1695#L24-5 [2018-12-09 05:46:51,180 INFO L796 eck$LassoCheckResult]: Loop: 1695#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1694#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1695#L24-5 [2018-12-09 05:46:51,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:51,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1714981628, now seen corresponding path program 3 times [2018-12-09 05:46:51,180 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:51,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:51,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:51,180 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:51,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:51,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:51,188 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 3 times [2018-12-09 05:46:51,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:51,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:51,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:51,189 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:51,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:51,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:46:51,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1170101099, now seen corresponding path program 4 times [2018-12-09 05:46:51,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 05:46:51,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 05:46:51,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:51,192 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 05:46:51,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 05:46:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 05:46:51,321 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:46:51,321 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:46:51,321 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:46:51,321 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:46:51,321 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 05:46:51,321 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:51,321 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:46:51,321 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:46:51,321 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration10_Lasso [2018-12-09 05:46:51,321 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:46:51,321 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:46:51,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:46:51,440 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:46:51,440 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:51,443 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 05:46:51,443 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_343fdb2d-10f5-4df9-9028-50520241dd6d/bin-2019/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:46:51,459 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 05:46:51,459 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 05:47:03,495 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 05:47:03,499 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 05:47:03,499 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 05:47:03,499 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 05:47:03,499 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 05:47:03,499 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 05:47:03,499 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 05:47:03,499 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 05:47:03,499 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 05:47:03,499 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration10_Lasso [2018-12-09 05:47:03,500 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 05:47:03,500 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 05:47:03,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 05:47:03,624 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 05:47:03,624 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 05:47:03,625 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 [2018-12-09 05:47:03,625 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,625 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:47:03,625 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,625 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,625 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,625 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:47:03,625 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:47:03,625 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,626 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 [2018-12-09 05:47:03,626 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,626 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,626 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,626 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,626 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:47:03,626 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:47:03,628 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,628 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 [2018-12-09 05:47:03,628 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,628 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,628 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,628 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,629 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:47:03,629 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:47:03,629 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,629 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 [2018-12-09 05:47:03,629 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,630 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:47:03,630 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,630 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,630 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,630 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:47:03,630 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:47:03,630 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,630 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 [2018-12-09 05:47:03,630 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,630 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,631 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,631 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,631 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:47:03,631 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:47:03,631 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,632 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 [2018-12-09 05:47:03,632 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,632 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:47:03,632 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,632 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,632 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,632 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:47:03,632 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:47:03,632 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,633 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 [2018-12-09 05:47:03,633 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,633 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:47:03,633 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,633 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,633 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,633 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:47:03,633 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:47:03,633 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,634 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 [2018-12-09 05:47:03,634 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,634 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,634 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,634 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,634 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:47:03,634 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:47:03,635 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,635 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 [2018-12-09 05:47:03,635 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,636 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 05:47:03,636 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,636 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,636 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,636 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 05:47:03,636 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 05:47:03,636 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,636 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 [2018-12-09 05:47:03,636 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,637 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,637 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,637 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,637 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:47:03,637 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:47:03,637 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 05:47:03,638 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 [2018-12-09 05:47:03,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 05:47:03,638 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 05:47:03,638 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 05:47:03,638 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 05:47:03,639 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 05:47:03,639 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 05:47:03,643 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 05:47:03,646 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-09 05:47:03,646 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-09 05:47:03,646 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 05:47:03,646 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 05:47:03,647 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 05:47:03,647 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [499999*ULTIMATE.start_f_~d - 1*ULTIMATE.start_f_~x~0 >= 0] [2018-12-09 05:47:03,649 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 05:47:03,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:47:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:47:03,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:47:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:47:03,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:47:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:47:03,701 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2018-12-09 05:47:03,701 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 6 states. [2018-12-09 05:47:03,731 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 36 states and 46 transitions. Complement of second has 9 states. [2018-12-09 05:47:03,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2018-12-09 05:47:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-09 05:47:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2018-12-09 05:47:03,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 05:47:03,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:47:03,732 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 05:47:03,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:47:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:47:03,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:47:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:47:03,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:47:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:47:03,791 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2018-12-09 05:47:03,791 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 6 states. [2018-12-09 05:47:03,822 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 36 states and 46 transitions. Complement of second has 9 states. [2018-12-09 05:47:03,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2018-12-09 05:47:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-09 05:47:03,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2018-12-09 05:47:03,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 05:47:03,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:47:03,823 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 05:47:03,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 05:47:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:47:03,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:47:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 05:47:03,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 05:47:03,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 05:47:03,873 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2018-12-09 05:47:03,873 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 6 states. [2018-12-09 05:47:03,905 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 37 states and 48 transitions. Complement of second has 8 states. [2018-12-09 05:47:03,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2018-12-09 05:47:03,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-09 05:47:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 23 transitions. [2018-12-09 05:47:03,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 05:47:03,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:47:03,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 18 letters. Loop has 2 letters. [2018-12-09 05:47:03,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:47:03,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 16 letters. Loop has 4 letters. [2018-12-09 05:47:03,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 05:47:03,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2018-12-09 05:47:03,906 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 05:47:03,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2018-12-09 05:47:03,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 05:47:03,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 05:47:03,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 05:47:03,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 05:47:03,906 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 05:47:03,906 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 05:47:03,906 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 05:47:03,906 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-12-09 05:47:03,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 05:47:03,907 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 05:47:03,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 05:47:03,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 05:47:03 BoogieIcfgContainer [2018-12-09 05:47:03,911 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 05:47:03,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 05:47:03,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 05:47:03,911 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 05:47:03,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:44:55" (3/4) ... [2018-12-09 05:47:03,914 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 05:47:03,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 05:47:03,914 INFO L168 Benchmark]: Toolchain (without parser) took 128523.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 958.7 MB in the beginning and 820.0 MB in the end (delta: 138.7 MB). Peak memory consumption was 325.8 MB. Max. memory is 11.5 GB. [2018-12-09 05:47:03,915 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:47:03,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.84 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:47:03,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.87 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:47:03,915 INFO L168 Benchmark]: Boogie Preprocessor took 11.83 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 05:47:03,916 INFO L168 Benchmark]: RCFGBuilder took 174.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-09 05:47:03,916 INFO L168 Benchmark]: BuchiAutomizer took 128176.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 820.0 MB in the end (delta: 296.9 MB). Peak memory consumption was 347.2 MB. Max. memory is 11.5 GB. [2018-12-09 05:47:03,916 INFO L168 Benchmark]: Witness Printer took 2.81 ms. Allocated memory is still 1.2 GB. Free memory is still 820.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 05:47:03,917 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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.84 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.87 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.83 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 174.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 128176.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 820.0 MB in the end (delta: 296.9 MB). Peak memory consumption was 347.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.81 ms. Allocated memory is still 1.2 GB. Free memory is still 820.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function k + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.1s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 127.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 20 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 58 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 310 SDtfs, 494 SDslu, 110 SDs, 0 SdLazy, 187 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital63 mio100 ax100 hnf97 lsp44 ukn100 mio100 lsp100 div296 bol100 ite100 ukn100 eq146 hnf47 smp90 dnf100 smp100 tf101 neg98 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 38 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 9 LassoNonterminationAnalysisTime: 122.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...