./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 aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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-aa41828 [2018-11-23 09:32:21,657 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:32:21,658 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:32:21,665 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:32:21,665 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:32:21,666 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:32:21,667 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:32:21,668 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:32:21,669 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:32:21,669 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:32:21,670 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:32:21,670 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:32:21,671 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:32:21,672 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:32:21,672 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:32:21,673 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:32:21,673 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:32:21,674 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:32:21,676 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:32:21,677 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:32:21,677 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:32:21,678 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:32:21,679 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:32:21,679 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:32:21,679 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:32:21,680 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:32:21,680 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:32:21,681 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:32:21,681 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:32:21,682 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:32:21,682 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:32:21,682 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:32:21,682 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:32:21,683 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:32:21,683 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:32:21,686 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:32:21,686 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 09:32:21,694 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:32:21,694 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:32:21,695 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 09:32:21,695 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 09:32:21,695 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 09:32:21,695 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 09:32:21,696 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 09:32:21,696 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 09:32:21,696 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 09:32:21,696 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 09:32:21,696 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 09:32:21,696 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:32:21,696 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 09:32:21,697 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 09:32:21,697 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:32:21,697 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 09:32:21,697 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:32:21,697 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 09:32:21,697 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 09:32:21,697 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 09:32:21,699 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 09:32:21,699 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:32:21,699 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 09:32:21,699 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:32:21,700 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 09:32:21,700 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:32:21,700 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:32:21,700 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 09:32:21,700 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:32:21,700 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 09:32:21,700 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 09:32:21,701 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 09:32:21,701 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:32:21,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:32:21,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:32:21,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:32:21,739 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:32:21,739 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:32:21,740 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i [2018-11-23 09:32:21,787 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/data/f7121624f/3218eba2ef3a42d59ed4eb14fb63678c/FLAG8aacf6dee [2018-11-23 09:32:22,117 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:32:22,117 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i [2018-11-23 09:32:22,122 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/data/f7121624f/3218eba2ef3a42d59ed4eb14fb63678c/FLAG8aacf6dee [2018-11-23 09:32:22,548 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/data/f7121624f/3218eba2ef3a42d59ed4eb14fb63678c [2018-11-23 09:32:22,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:32:22,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:32:22,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:32:22,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:32:22,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:32:22,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8670d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22, skipping insertion in model container [2018-11-23 09:32:22,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:32:22,583 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:32:22,690 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:32:22,692 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:32:22,703 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:32:22,713 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:32:22,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22 WrapperNode [2018-11-23 09:32:22,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:32:22,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:32:22,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:32:22,714 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:32:22,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:32:22,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:32:22,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:32:22,736 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:32:22,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... [2018-11-23 09:32:22,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:32:22,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:32:22,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:32:22,751 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:32:22,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:22,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:32:22,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:32:22,981 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:32:22,981 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-23 09:32:22,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:22 BoogieIcfgContainer [2018-11-23 09:32:22,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:32:22,982 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 09:32:22,982 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 09:32:22,986 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 09:32:22,987 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:32:22,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:32:22" (1/3) ... [2018-11-23 09:32:22,988 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cfe37f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:32:22, skipping insertion in model container [2018-11-23 09:32:22,988 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:32:22,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:22" (2/3) ... [2018-11-23 09:32:22,988 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cfe37f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:32:22, skipping insertion in model container [2018-11-23 09:32:22,988 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:32:22,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:22" (3/3) ... [2018-11-23 09:32:22,989 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_true-unreach-call_true-termination.i [2018-11-23 09:32:23,040 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 09:32:23,041 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 09:32:23,041 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 09:32:23,041 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 09:32:23,041 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:32:23,041 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:32:23,041 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 09:32:23,041 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:32:23,042 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 09:32:23,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2018-11-23 09:32:23,064 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-23 09:32:23,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:32:23,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:32:23,069 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 09:32:23,069 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 09:32:23,069 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 09:32:23,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states. [2018-11-23 09:32:23,070 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-23 09:32:23,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:32:23,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:32:23,071 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 09:32:23,071 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 09:32:23,075 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 15#L36true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 28#L13true assume !!(f_~k~0 <= 1073741823); 13#L16-2true [2018-11-23 09:32:23,076 INFO L796 eck$LassoCheckResult]: Loop: 13#L16-2true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 13#L16-2true [2018-11-23 09:32:23,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:23,079 INFO L82 PathProgramCache]: Analyzing trace with hash 30886, now seen corresponding path program 1 times [2018-11-23 09:32:23,080 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:23,081 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:23,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:23,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:23,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:23,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:23,153 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-23 09:32:23,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:23,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:23,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:23,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:23,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:23,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:23,161 INFO L82 PathProgramCache]: Analyzing trace with hash 957485, now seen corresponding path program 1 times [2018-11-23 09:32:23,161 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:23,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:23,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:23,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:23,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:23,235 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:32:23,235 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:32:23,236 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:32:23,236 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:32:23,236 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:32:23,236 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,236 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:32:23,236 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:32:23,236 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-23 09:32:23,236 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:32:23,236 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:32:23,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:23,472 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:32:23,472 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,476 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,477 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,481 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,481 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,508 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,508 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,511 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,511 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,526 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,526 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,528 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,529 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,552 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,552 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,554 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,554 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,569 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,569 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,572 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,572 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,587 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,587 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,592 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,592 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,607 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,614 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,614 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,630 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,630 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,633 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,633 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,648 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,648 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:23,652 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:23,652 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,668 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:23,668 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:23,686 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:32:23,686 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:35,740 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:32:35,745 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:32:35,746 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:32:35,746 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:32:35,746 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:32:35,746 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:32:35,746 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:35,746 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:32:35,746 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:32:35,746 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-23 09:32:35,747 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:32:35,747 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:32:35,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:35,871 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:32:35,875 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:32:35,876 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:35,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:35,878 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:32:35,878 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:35,878 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:35,878 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:35,880 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:32:35,880 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:32:35,882 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:35,883 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:35,883 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:35,884 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:32:35,884 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:35,884 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:35,884 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:35,885 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:32:35,885 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:32:35,886 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:35,886 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:35,887 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:35,887 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:32:35,887 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:35,887 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:35,887 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:35,888 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:32:35,888 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:32:35,888 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:35,889 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:35,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:35,890 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:32:35,890 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:35,890 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:35,890 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:35,890 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:32:35,891 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:32:35,891 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:35,892 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:35,892 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:35,893 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:32:35,893 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:35,893 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:35,893 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:35,893 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:32:35,894 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:32:35,894 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:35,895 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:35,895 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:35,896 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:35,896 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:35,896 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:35,898 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:32:35,899 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:32:35,907 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:35,908 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:35,908 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:35,909 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:35,909 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:35,909 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:35,913 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:32:35,913 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:32:35,945 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:32:35,962 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 09:32:35,963 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 09:32:35,965 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:32:35,967 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:32:35,967 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:32:35,968 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] [2018-11-23 09:32:35,971 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:32:36,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:32:36,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:32:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:32:36,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:32:36,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:32:36,048 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-23 09:32:36,049 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states. Second operand 3 states. [2018-11-23 09:32:36,136 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. [2018-11-23 09:32:36,137 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 [2018-11-23 09:32:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 09:32:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2018-11-23 09:32:36,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-23 09:32:36,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:32:36,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-23 09:32:36,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:32:36,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 94 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 09:32:36,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:32:36,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 128 transitions. [2018-11-23 09:32:36,147 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-11-23 09:32:36,150 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 29 states and 37 transitions. [2018-11-23 09:32:36,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2018-11-23 09:32:36,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-23 09:32:36,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2018-11-23 09:32:36,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 09:32:36,152 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2018-11-23 09:32:36,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2018-11-23 09:32:36,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2018-11-23 09:32:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 09:32:36,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2018-11-23 09:32:36,173 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2018-11-23 09:32:36,174 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2018-11-23 09:32:36,174 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 09:32:36,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2018-11-23 09:32:36,175 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-11-23 09:32:36,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:32:36,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:32:36,175 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 09:32:36,175 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 09:32:36,176 INFO L794 eck$LassoCheckResult]: Stem: 171#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 172#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 174#L13-1 assume !!(f_~k~0 <= 1073741823); 168#L16-6 [2018-11-23 09:32:36,176 INFO L796 eck$LassoCheckResult]: Loop: 168#L16-6 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 168#L16-6 [2018-11-23 09:32:36,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:36,176 INFO L82 PathProgramCache]: Analyzing trace with hash 32998, now seen corresponding path program 1 times [2018-11-23 09:32:36,176 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:36,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:36,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:36,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:36,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:36,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:36,186 INFO L82 PathProgramCache]: Analyzing trace with hash 116, now seen corresponding path program 1 times [2018-11-23 09:32:36,186 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:36,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:36,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:36,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:36,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:36,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:36,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1023023, now seen corresponding path program 1 times [2018-11-23 09:32:36,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:36,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:36,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:36,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:36,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:36,226 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:32:36,227 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:32:36,227 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:32:36,227 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:32:36,227 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:32:36,227 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:36,227 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:32:36,227 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:32:36,227 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-23 09:32:36,227 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:32:36,227 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:32:36,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:36,363 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:32:36,364 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:36,367 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:36,367 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:36,369 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:36,369 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:36,386 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:36,386 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:36,388 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:36,388 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:36,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:36,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:36,405 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:36,405 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:36,421 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:36,421 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:36,423 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:36,423 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:36,440 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:36,440 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:36,445 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:36,445 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:36,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:36,460 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:36,462 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:36,463 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_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:36,478 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:36,478 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:36,481 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:36,481 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:32:36,498 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:36,498 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:32:36,516 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:32:36,516 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:48,590 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:32:48,595 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:32:48,595 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:32:48,596 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:32:48,596 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:32:48,596 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:32:48,596 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:48,596 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:32:48,596 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:32:48,596 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-23 09:32:48,596 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:32:48,597 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:32:48,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,714 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:32:48,714 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:32:48,714 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:48,715 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:48,715 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:32:48,715 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:48,715 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:48,715 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:48,716 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:32:48,716 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:32:48,717 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:48,717 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:48,717 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:48,718 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:32:48,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:48,718 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:48,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:48,718 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:32:48,718 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:32:48,719 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:48,719 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:48,720 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:48,720 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:32:48,720 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:48,720 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:48,720 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:48,721 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:32:48,721 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:32:48,721 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:32:48,722 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:32:48,722 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:32:48,722 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:32:48,722 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:32:48,722 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:32:48,725 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:32:48,725 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:32:48,757 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:32:48,772 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-23 09:32:48,772 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-23 09:32:48,772 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:32:48,774 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:32:48,774 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:32:48,774 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] [2018-11-23 09:32:48,787 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:32:48,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:32:48,813 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:32:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:32:48,816 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:32:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:32:48,817 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-23 09:32:48,817 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-11-23 09:32:48,849 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. [2018-11-23 09:32:48,849 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 [2018-11-23 09:32:48,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 09:32:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-23 09:32:48,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-23 09:32:48,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:32:48,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-23 09:32:48,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:32:48,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 09:32:48,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:32:48,851 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2018-11-23 09:32:48,853 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-11-23 09:32:48,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 30 states and 39 transitions. [2018-11-23 09:32:48,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2018-11-23 09:32:48,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-23 09:32:48,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2018-11-23 09:32:48,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 09:32:48,855 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-11-23 09:32:48,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2018-11-23 09:32:48,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2018-11-23 09:32:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 09:32:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2018-11-23 09:32:48,856 INFO L728 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2018-11-23 09:32:48,856 INFO L608 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2018-11-23 09:32:48,857 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 09:32:48,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2018-11-23 09:32:48,857 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 09:32:48,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:32:48,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:32:48,858 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:32:48,858 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:32:48,858 INFO L794 eck$LassoCheckResult]: Stem: 276#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 277#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 281#L13 assume !!(f_~k~0 <= 1073741823); 282#L16-2 assume !(f_~z~0 < f_~k~0); 283#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 284#L4 assume !(0 == __VERIFIER_assert_~cond); 280#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 269#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 270#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 275#L24-2 [2018-11-23 09:32:48,858 INFO L796 eck$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 [2018-11-23 09:32:48,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:48,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1466276473, now seen corresponding path program 1 times [2018-11-23 09:32:48,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:48,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:48,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:48,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:48,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:48,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:48,870 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 1 times [2018-11-23 09:32:48,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:48,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:48,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:48,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:48,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:48,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:32:48,876 INFO L82 PathProgramCache]: Analyzing trace with hash 342419296, now seen corresponding path program 1 times [2018-11-23 09:32:48,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:32:48,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:32:48,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:48,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:32:48,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:32:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:32:48,965 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:32:48,965 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:32:48,965 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:32:48,965 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:32:48,965 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:32:48,965 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:32:48,965 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:32:48,965 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:32:48,966 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration3_Lasso [2018-11-23 09:32:48,966 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:32:48,966 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:32:48,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:48,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:32:49,078 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:32:49,078 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:32:49,083 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:49,083 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:32:49,085 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:32:49,085 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:32:49,100 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:32:49,100 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:32:49,119 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:32:49,119 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:01,151 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:33:01,155 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:01,155 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:01,155 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:01,155 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:01,155 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:33:01,155 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:01,155 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:01,155 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:01,155 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration3_Lasso [2018-11-23 09:33:01,155 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:01,156 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:01,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,277 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:01,277 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:33:01,278 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:01,278 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:01,278 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:01,278 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:01,279 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:01,280 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:01,280 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:01,290 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:33:01,299 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-23 09:33:01,299 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-23 09:33:01,299 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:33:01,300 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:33:01,300 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:33:01,300 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] [2018-11-23 09:33:01,302 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:33:01,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:01,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:01,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:33:01,358 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 [2018-11-23 09:33:01,358 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-23 09:33:01,387 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. [2018-11-23 09:33:01,387 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 [2018-11-23 09:33:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:33:01,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-11-23 09:33:01,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-23 09:33:01,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:01,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-23 09:33:01,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:01,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-23 09:33:01,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:01,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2018-11-23 09:33:01,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 09:33:01,389 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 38 transitions. [2018-11-23 09:33:01,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-23 09:33:01,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2018-11-23 09:33:01,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2018-11-23 09:33:01,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:33:01,390 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2018-11-23 09:33:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2018-11-23 09:33:01,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-11-23 09:33:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 09:33:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2018-11-23 09:33:01,392 INFO L728 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2018-11-23 09:33:01,392 INFO L608 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2018-11-23 09:33:01,392 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 09:33:01,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 37 transitions. [2018-11-23 09:33:01,392 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 09:33:01,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:33:01,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:33:01,393 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:33:01,393 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:33:01,393 INFO L794 eck$LassoCheckResult]: Stem: 395#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 396#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 402#L13-1 assume !!(f_~k~0 <= 1073741823); 391#L16-6 assume !(f_~z~0 < f_~k~0); 386#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 387#L4-3 assume !(0 == __VERIFIER_assert_~cond); 390#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 382#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 383#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 384#L24-5 [2018-11-23 09:33:01,393 INFO L796 eck$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 [2018-11-23 09:33:01,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:01,394 INFO L82 PathProgramCache]: Analyzing trace with hash 925850489, now seen corresponding path program 1 times [2018-11-23 09:33:01,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:01,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:01,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:01,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:01,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:01,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:01,401 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 1 times [2018-11-23 09:33:01,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:01,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:01,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:01,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:01,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:01,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:01,406 INFO L82 PathProgramCache]: Analyzing trace with hash 684093600, now seen corresponding path program 1 times [2018-11-23 09:33:01,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:01,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:01,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:01,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:01,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:01,478 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:01,478 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:01,478 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:01,478 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:01,478 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:33:01,478 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:01,479 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:01,479 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:01,479 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-23 09:33:01,479 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:01,479 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:01,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:01,592 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:01,592 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:01,595 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:01,595 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:01,600 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:01,600 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:01,615 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:01,616 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:01,624 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:01,624 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:01,640 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:01,640 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:01,646 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:01,646 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:01,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:01,662 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:01,692 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:33:01,692 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:13,737 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:33:13,740 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:13,740 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:13,740 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:13,740 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:13,741 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:33:13,741 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:13,741 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:13,741 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:13,741 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-23 09:33:13,741 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:13,741 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:13,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:13,879 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:13,879 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:33:13,879 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:13,880 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:13,880 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:33:13,880 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:13,880 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:13,880 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:13,881 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:33:13,881 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:33:13,881 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:13,881 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:13,882 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:13,882 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:13,882 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:13,882 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:13,883 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:13,883 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:13,887 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:13,887 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:13,887 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:13,887 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:13,888 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:13,888 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:13,888 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:13,889 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:13,890 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:13,890 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:13,891 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:13,891 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:13,891 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:13,891 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:13,892 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:13,892 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:13,894 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:13,895 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:13,895 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:13,895 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:13,895 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:13,896 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:13,897 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:13,897 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:13,902 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:33:13,904 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 09:33:13,904 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 09:33:13,904 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:33:13,905 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:33:13,905 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:33:13,905 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] [2018-11-23 09:33:13,907 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:33:13,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:13,934 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:13,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:13,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:33:13,948 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 [2018-11-23 09:33:13,948 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 37 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-23 09:33:13,972 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. [2018-11-23 09:33:13,973 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 [2018-11-23 09:33:13,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:33:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-11-23 09:33:13,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-23 09:33:13,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:13,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-23 09:33:13,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:13,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-23 09:33:13,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:13,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 45 transitions. [2018-11-23 09:33:13,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 09:33:13,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 33 states and 44 transitions. [2018-11-23 09:33:13,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-11-23 09:33:13,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-11-23 09:33:13,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 44 transitions. [2018-11-23 09:33:13,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:33:13,979 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-11-23 09:33:13,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 44 transitions. [2018-11-23 09:33:13,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-11-23 09:33:13,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 09:33:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2018-11-23 09:33:13,980 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-11-23 09:33:13,981 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-11-23 09:33:13,981 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 09:33:13,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2018-11-23 09:33:13,981 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 09:33:13,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:33:13,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:33:13,981 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:33:13,981 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 09:33:13,981 INFO L794 eck$LassoCheckResult]: Stem: 526#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 527#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 535#L13 assume !!(f_~k~0 <= 1073741823); 536#L16-2 assume !(f_~z~0 < f_~k~0); 537#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 538#L4 assume !(0 == __VERIFIER_assert_~cond); 534#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 519#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 520#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 524#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 532#L24 assume 0 != f_~c~0 % 256; 539#L25 [2018-11-23 09:33:13,981 INFO L796 eck$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 [2018-11-23 09:33:13,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:13,982 INFO L82 PathProgramCache]: Analyzing trace with hash 342419292, now seen corresponding path program 1 times [2018-11-23 09:33:13,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:13,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:13,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:13,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:13,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:13,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:13,990 INFO L82 PathProgramCache]: Analyzing trace with hash 91200, now seen corresponding path program 1 times [2018-11-23 09:33:13,990 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:13,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:13,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:13,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:13,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:13,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:13,996 INFO L82 PathProgramCache]: Analyzing trace with hash 465861381, now seen corresponding path program 1 times [2018-11-23 09:33:13,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:13,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:13,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:13,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:13,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:14,044 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:14,045 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:14,045 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:14,045 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:14,045 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:33:14,045 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:14,045 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:14,045 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:14,045 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Loop [2018-11-23 09:33:14,045 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:14,045 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:14,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,116 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:14,116 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,118 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:14,118 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:14,133 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:14,133 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,136 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:14,136 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:14,144 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:14,144 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-128, ULTIMATE.start_f_~y~0=128} Honda state: {ULTIMATE.start_f_#t~nondet4=-128, ULTIMATE.start_f_~y~0=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,160 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:14,160 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,177 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:33:14,177 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:14,185 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:14,186 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,201 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:14,201 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:14,208 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:14,208 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=64, ULTIMATE.start_f_~c~0=64} Honda state: {ULTIMATE.start_f_#t~nondet3=64, ULTIMATE.start_f_~c~0=64} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-23 09:33:14,292 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:14,292 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:14,292 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:14,292 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:14,292 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:33:14,292 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:14,292 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:14,292 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:14,292 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-23 09:33:14,292 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:14,293 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:14,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:14,453 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:14,453 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,456 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:14,456 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:14,461 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:14,461 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,480 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:14,480 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:14,482 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:14,482 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,498 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:14,498 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:14,512 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:14,512 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=-1048321, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,530 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:14,530 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:14,548 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:33:14,548 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:26,586 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:33:26,591 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:26,591 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:26,591 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:26,591 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:26,592 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:33:26,592 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:26,592 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:26,592 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:26,592 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-23 09:33:26,592 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:26,592 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:26,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:26,771 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:26,771 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:33:26,771 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:26,771 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:26,772 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:26,772 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:26,772 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:26,773 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:26,773 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:26,779 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:26,779 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:26,780 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:26,780 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:26,780 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:26,780 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:26,781 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:26,781 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:26,783 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:26,784 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 [2018-11-23 09:33:26,784 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:26,784 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:33:26,784 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:26,784 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:26,785 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:26,785 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:33:26,785 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:33:26,785 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:26,786 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 [2018-11-23 09:33:26,786 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:26,786 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:26,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:26,786 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:26,788 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:26,788 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:26,795 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:33:26,800 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 09:33:26,800 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 09:33:26,801 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:33:26,801 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2018-11-23 09:33:26,801 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:33:26,802 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 2*ULTIMATE.start_f_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0, 1*ULTIMATE.start_f_~x~0 >= 0] [2018-11-23 09:33:26,823 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2018-11-23 09:33:26,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:26,858 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:26,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:33:26,906 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 [2018-11-23 09:33:26,906 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 43 transitions. cyclomatic complexity: 17 Second operand 5 states. [2018-11-23 09:33:26,964 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. [2018-11-23 09:33:26,964 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 [2018-11-23 09:33:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 09:33:26,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2018-11-23 09:33:26,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-23 09:33:26,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:26,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-23 09:33:26,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:26,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 6 letters. [2018-11-23 09:33:26,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:26,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2018-11-23 09:33:26,966 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-23 09:33:26,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 38 states and 51 transitions. [2018-11-23 09:33:26,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-11-23 09:33:26,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-11-23 09:33:26,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2018-11-23 09:33:26,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:33:26,967 INFO L705 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2018-11-23 09:33:26,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2018-11-23 09:33:26,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-11-23 09:33:26,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-23 09:33:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2018-11-23 09:33:26,972 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-11-23 09:33:26,972 INFO L608 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-11-23 09:33:26,972 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 09:33:26,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 50 transitions. [2018-11-23 09:33:26,973 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-23 09:33:26,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:33:26,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:33:26,973 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:33:26,973 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 09:33:26,973 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 682#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 687#L13-1 assume !!(f_~k~0 <= 1073741823); 677#L16-6 assume !(f_~z~0 < f_~k~0); 672#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 673#L4-3 assume !(0 == __VERIFIER_assert_~cond); 676#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 664#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 665#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 671#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 670#L24-3 assume 0 != f_~c~0 % 256; 679#L25-1 [2018-11-23 09:33:26,973 INFO L796 eck$LassoCheckResult]: Loop: 679#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; 666#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 667#L24-3 assume 0 != f_~c~0 % 256; 679#L25-1 [2018-11-23 09:33:26,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:26,973 INFO L82 PathProgramCache]: Analyzing trace with hash 684093596, now seen corresponding path program 1 times [2018-11-23 09:33:26,974 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:26,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:26,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:26,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:26,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:26,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:26,980 INFO L82 PathProgramCache]: Analyzing trace with hash 156738, now seen corresponding path program 1 times [2018-11-23 09:33:26,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:26,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:26,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:26,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:26,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:26,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:26,985 INFO L82 PathProgramCache]: Analyzing trace with hash 212625863, now seen corresponding path program 1 times [2018-11-23 09:33:26,985 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:26,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:26,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:26,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:26,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:27,013 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:27,013 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:27,013 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:27,013 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:27,013 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:33:27,013 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:27,013 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:27,014 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:27,014 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Loop [2018-11-23 09:33:27,014 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:27,014 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:27,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,079 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:27,079 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:27,082 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:27,082 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:27,089 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:27,089 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:27,104 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:27,105 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:27,120 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:27,120 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:27,123 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:27,123 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:27,129 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:27,129 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:27,145 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:27,145 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:27,179 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:33:27,179 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:27,188 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:27,188 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] [2018-11-23 09:33:27,272 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:27,273 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:27,273 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:27,273 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:27,273 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:33:27,273 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:27,273 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:27,273 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:27,273 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-23 09:33:27,273 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:27,273 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:27,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:27,401 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:27,402 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:27,404 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:27,404 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:27,421 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:33:27,421 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:39,454 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:33:39,457 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:39,457 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:39,457 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:39,457 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:39,457 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:33:39,457 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:39,457 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:39,457 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:39,458 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-23 09:33:39,458 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:39,458 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:39,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,579 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:39,579 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:33:39,580 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:39,580 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:39,580 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:39,580 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:39,580 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:39,581 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:39,581 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:39,585 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:33:39,589 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 09:33:39,590 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-23 09:33:39,590 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:33:39,591 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:33:39,591 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:33:39,591 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 - 2 >= 0] [2018-11-23 09:33:39,593 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:33:39,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:39,611 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:39,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:33:39,628 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 [2018-11-23 09:33:39,628 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 50 transitions. cyclomatic complexity: 20 Second operand 5 states. [2018-11-23 09:33:39,650 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. [2018-11-23 09:33:39,651 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 [2018-11-23 09:33:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 09:33:39,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2018-11-23 09:33:39,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-23 09:33:39,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:39,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-23 09:33:39,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:39,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 11 letters. Loop has 6 letters. [2018-11-23 09:33:39,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:39,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 63 transitions. [2018-11-23 09:33:39,653 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 09:33:39,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 43 states and 58 transitions. [2018-11-23 09:33:39,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-11-23 09:33:39,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-11-23 09:33:39,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 58 transitions. [2018-11-23 09:33:39,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:33:39,654 INFO L705 BuchiCegarLoop]: Abstraction has 43 states and 58 transitions. [2018-11-23 09:33:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 58 transitions. [2018-11-23 09:33:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2018-11-23 09:33:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-23 09:33:39,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2018-11-23 09:33:39,656 INFO L728 BuchiCegarLoop]: Abstraction has 42 states and 57 transitions. [2018-11-23 09:33:39,656 INFO L608 BuchiCegarLoop]: Abstraction has 42 states and 57 transitions. [2018-11-23 09:33:39,656 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-23 09:33:39,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 57 transitions. [2018-11-23 09:33:39,657 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 09:33:39,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:33:39,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:33:39,657 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:33:39,657 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:33:39,657 INFO L794 eck$LassoCheckResult]: Stem: 843#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 844#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 853#L13 assume !!(f_~k~0 <= 1073741823); 854#L16-2 assume !(f_~z~0 < f_~k~0); 851#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 852#L4 assume !(0 == __VERIFIER_assert_~cond); 850#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 834#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 835#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 839#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 861#L24 assume 0 != f_~c~0 % 256; 859#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 860#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 864#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 845#L24-2 [2018-11-23 09:33:39,657 INFO L796 eck$LassoCheckResult]: Loop: 845#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 846#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 845#L24-2 [2018-11-23 09:33:39,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:39,658 INFO L82 PathProgramCache]: Analyzing trace with hash 465861385, now seen corresponding path program 1 times [2018-11-23 09:33:39,658 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:39,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:39,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:39,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:39,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:39,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:39,666 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 2 times [2018-11-23 09:33:39,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:39,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:39,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:39,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:39,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:39,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:39,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1016194032, now seen corresponding path program 2 times [2018-11-23 09:33:39,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:39,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:39,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:39,671 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:33:39,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:39,789 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:39,789 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:39,789 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:39,790 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:39,790 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:33:39,790 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:39,790 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:39,790 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:39,790 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-23 09:33:39,790 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:39,790 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:39,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:39,925 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:39,925 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:39,927 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:39,927 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:39,929 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:39,930 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:39,945 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:39,945 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:39,953 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:39,953 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=-256, ULTIMATE.start_f_~c~0=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:39,969 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:39,969 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:39,987 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:33:39,987 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:52,060 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:33:52,064 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:52,065 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:52,065 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:52,065 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:52,065 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:33:52,065 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:52,065 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:52,065 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:52,065 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-23 09:33:52,065 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:52,065 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:52,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,198 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:52,198 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:33:52,198 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:52,198 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:52,199 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:52,199 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:52,199 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:52,199 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:52,199 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:52,201 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:52,201 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:52,202 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:52,202 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:52,202 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:52,202 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:52,203 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:52,203 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:52,206 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:52,206 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:52,206 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:52,206 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:52,206 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:52,206 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:52,207 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:52,207 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:52,208 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:52,209 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:52,209 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:52,209 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:52,209 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:52,209 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:52,210 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:52,210 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:52,211 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:52,212 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:52,212 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:52,212 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:33:52,212 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:52,212 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:52,212 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:52,212 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:33:52,213 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:33:52,213 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:52,213 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:52,213 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:52,213 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:33:52,213 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:52,214 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:52,214 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:52,214 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:33:52,214 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:33:52,214 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:52,214 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:52,215 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:52,215 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:33:52,215 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:52,215 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:52,215 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:52,215 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:33:52,215 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:33:52,216 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:33:52,216 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:33:52,216 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:33:52,216 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:33:52,216 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:33:52,216 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:33:52,219 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:33:52,219 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:33:52,226 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:33:52,235 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-23 09:33:52,235 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-23 09:33:52,235 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:33:52,236 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:33:52,236 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:33:52,236 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] [2018-11-23 09:33:52,251 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:33:52,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:52,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:33:52,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:33:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:33:52,290 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 [2018-11-23 09:33:52,290 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 57 transitions. cyclomatic complexity: 23 Second operand 4 states. [2018-11-23 09:33:52,326 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. [2018-11-23 09:33:52,326 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 [2018-11-23 09:33:52,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:33:52,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-23 09:33:52,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 09:33:52,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:52,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 09:33:52,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:52,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-23 09:33:52,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:33:52,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 79 transitions. [2018-11-23 09:33:52,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 09:33:52,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 52 states and 69 transitions. [2018-11-23 09:33:52,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-23 09:33:52,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-23 09:33:52,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 69 transitions. [2018-11-23 09:33:52,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:33:52,329 INFO L705 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-11-23 09:33:52,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 69 transitions. [2018-11-23 09:33:52,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2018-11-23 09:33:52,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-23 09:33:52,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2018-11-23 09:33:52,331 INFO L728 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2018-11-23 09:33:52,331 INFO L608 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2018-11-23 09:33:52,331 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-23 09:33:52,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 67 transitions. [2018-11-23 09:33:52,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 09:33:52,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:33:52,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:33:52,332 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:33:52,332 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:33:52,332 INFO L794 eck$LassoCheckResult]: Stem: 1023#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1024#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1029#L13-1 assume !!(f_~k~0 <= 1073741823); 1019#L16-6 assume !(f_~z~0 < f_~k~0); 1014#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1015#L4-3 assume !(0 == __VERIFIER_assert_~cond); 1018#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1007#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1008#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1009#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1043#L24-3 assume 0 != f_~c~0 % 256; 1038#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1039#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1046#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1010#L24-5 [2018-11-23 09:33:52,332 INFO L796 eck$LassoCheckResult]: Loop: 1010#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1011#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1010#L24-5 [2018-11-23 09:33:52,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:52,333 INFO L82 PathProgramCache]: Analyzing trace with hash 212625867, now seen corresponding path program 1 times [2018-11-23 09:33:52,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:52,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:52,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:52,333 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:33:52,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:52,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:52,341 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 2 times [2018-11-23 09:33:52,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:52,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:52,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:52,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:33:52,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:52,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:33:52,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1824968078, now seen corresponding path program 2 times [2018-11-23 09:33:52,344 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:33:52,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:33:52,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:52,345 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:33:52,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:33:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:33:52,457 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:33:52,457 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:33:52,457 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:33:52,457 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:33:52,457 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:33:52,457 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:33:52,457 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:33:52,457 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:33:52,457 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-23 09:33:52,458 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:33:52,458 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:33:52,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:33:52,619 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:33:52,620 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,622 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:52,622 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:52,625 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:52,625 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,641 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:52,641 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:52,646 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:52,646 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:52,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:52,678 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:52,678 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,702 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:52,702 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:52,704 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:52,704 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,720 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:52,720 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:52,723 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:52,723 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,738 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:52,739 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:52,743 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:52,743 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,759 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:52,759 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:33:52,761 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:33:52,761 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,776 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:33:52,776 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:33:52,792 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:33:52,792 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:04,828 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:34:04,832 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:04,832 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:04,832 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:04,832 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:04,832 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:34:04,832 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:04,832 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:04,832 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:04,832 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-23 09:34:04,832 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:04,832 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:04,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:04,981 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:04,981 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:34:04,981 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:04,982 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:04,982 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:04,982 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:04,982 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:04,982 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:04,983 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:04,984 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:04,984 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:04,985 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:04,985 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:04,985 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:04,985 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:04,985 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:04,985 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:04,986 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:04,987 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:04,987 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:04,987 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:04,987 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:04,987 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:04,987 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:04,988 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:04,988 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:04,988 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:04,988 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:04,988 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:04,989 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:04,989 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:04,989 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:04,989 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:04,989 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:04,990 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:04,991 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:04,991 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:04,991 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:04,991 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:04,991 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:04,992 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:04,992 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:04,993 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:04,993 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 [2018-11-23 09:34:04,993 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:04,993 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:04,993 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:04,993 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:04,994 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:04,994 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:04,996 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:04,997 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 [2018-11-23 09:34:04,997 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:04,997 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:04,997 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:04,997 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:04,998 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:04,998 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:05,004 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:34:05,010 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 09:34:05,010 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-23 09:34:05,010 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:34:05,011 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:34:05,011 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:34:05,012 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 - 2 >= 0] [2018-11-23 09:34:05,028 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:34:05,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:05,054 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:05,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:05,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:05,071 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 [2018-11-23 09:34:05,071 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 67 transitions. cyclomatic complexity: 27 Second operand 4 states. [2018-11-23 09:34:05,092 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. [2018-11-23 09:34:05,093 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 [2018-11-23 09:34:05,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:34:05,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-23 09:34:05,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 09:34:05,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:05,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 09:34:05,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:05,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-23 09:34:05,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:05,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 89 transitions. [2018-11-23 09:34:05,095 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 09:34:05,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 60 states and 79 transitions. [2018-11-23 09:34:05,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-23 09:34:05,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-23 09:34:05,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2018-11-23 09:34:05,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:34:05,096 INFO L705 BuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2018-11-23 09:34:05,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2018-11-23 09:34:05,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2018-11-23 09:34:05,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-23 09:34:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2018-11-23 09:34:05,101 INFO L728 BuchiCegarLoop]: Abstraction has 58 states and 77 transitions. [2018-11-23 09:34:05,101 INFO L608 BuchiCegarLoop]: Abstraction has 58 states and 77 transitions. [2018-11-23 09:34:05,101 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-23 09:34:05,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 77 transitions. [2018-11-23 09:34:05,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 09:34:05,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:34:05,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:34:05,102 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:34:05,102 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:34:05,102 INFO L794 eck$LassoCheckResult]: Stem: 1224#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1225#L36 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1232#L13 assume !!(f_~k~0 <= 1073741823); 1233#L16-2 assume !(f_~z~0 < f_~k~0); 1234#L16-3 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1235#L4 assume !(0 == __VERIFIER_assert_~cond); 1231#L4-2 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1214#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1215#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1223#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1227#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1254#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1253#L24 assume 0 != f_~c~0 % 256; 1250#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1249#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1245#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1246#L24-2 [2018-11-23 09:34:05,102 INFO L796 eck$LassoCheckResult]: Loop: 1246#L24-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1248#L24 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1246#L24-2 [2018-11-23 09:34:05,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:05,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1126180482, now seen corresponding path program 3 times [2018-11-23 09:34:05,103 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:05,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:05,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:05,106 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:05,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:05,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:05,115 INFO L82 PathProgramCache]: Analyzing trace with hash 2792, now seen corresponding path program 3 times [2018-11-23 09:34:05,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:05,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:05,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:05,118 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:05,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:05,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:05,120 INFO L82 PathProgramCache]: Analyzing trace with hash -72313559, now seen corresponding path program 4 times [2018-11-23 09:34:05,120 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:05,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:05,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:05,121 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:05,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:05,263 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:05,263 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:05,263 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:05,263 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:05,263 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:34:05,263 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:05,263 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:05,263 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:05,263 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-23 09:34:05,263 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:05,263 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:05,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:05,400 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:05,400 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:34:05,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:05,403 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:05,405 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:05,405 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_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:34:05,420 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:05,420 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:34:05,437 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:34:05,438 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:17,469 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:34:17,473 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:17,473 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:17,473 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:17,474 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:17,474 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:34:17,474 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:17,474 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:17,474 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:17,474 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-23 09:34:17,474 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:17,474 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:17,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:17,591 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:17,591 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:34:17,591 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:17,591 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:17,591 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:17,591 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:17,592 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:17,592 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:17,592 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:17,593 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:17,593 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:17,593 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:17,593 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:17,593 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:17,593 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:17,593 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:17,594 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:17,594 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:17,594 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:17,594 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:17,594 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:17,594 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:17,594 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:17,594 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:17,595 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:17,595 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:17,595 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:17,595 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:17,595 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:17,596 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:17,596 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:17,596 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:17,596 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:17,596 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:17,596 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:17,596 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:17,596 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:17,597 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:17,597 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:17,597 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:17,597 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:17,597 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:17,597 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:17,597 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:17,598 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:17,598 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:17,598 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:17,599 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:17,599 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:17,599 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:17,599 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:17,599 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:17,599 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:17,599 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:17,599 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:17,599 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:17,600 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:17,600 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:17,600 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:17,600 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:17,600 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:17,600 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:17,600 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:17,600 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:17,601 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:17,601 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:17,601 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:17,601 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:17,601 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:17,602 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:17,607 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:34:17,615 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-23 09:34:17,615 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-23 09:34:17,615 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:34:17,616 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:34:17,616 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:34:17,616 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] [2018-11-23 09:34:17,651 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:34:17,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:17,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:17,688 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:17,742 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 [2018-11-23 09:34:17,742 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-11-23 09:34:17,841 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. [2018-11-23 09:34:17,842 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 [2018-11-23 09:34:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:34:17,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-23 09:34:17,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 09:34:17,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:17,842 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 09:34:17,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:17,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:17,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:17,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:17,884 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 [2018-11-23 09:34:17,884 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-11-23 09:34:17,907 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. [2018-11-23 09:34:17,909 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 [2018-11-23 09:34:17,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:34:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-23 09:34:17,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 09:34:17,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:17,909 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 09:34:17,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:17,928 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:17,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:17,939 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 [2018-11-23 09:34:17,940 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 77 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-11-23 09:34:17,976 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. [2018-11-23 09:34:17,976 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 [2018-11-23 09:34:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:34:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2018-11-23 09:34:17,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 09:34:17,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:17,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 18 letters. Loop has 2 letters. [2018-11-23 09:34:17,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:17,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 4 letters. [2018-11-23 09:34:17,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:17,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 90 transitions. [2018-11-23 09:34:17,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 09:34:17,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 30 states and 39 transitions. [2018-11-23 09:34:17,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-23 09:34:17,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-23 09:34:17,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2018-11-23 09:34:17,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:34:17,979 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-11-23 09:34:17,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2018-11-23 09:34:17,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-23 09:34:17,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 09:34:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2018-11-23 09:34:17,980 INFO L728 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-11-23 09:34:17,980 INFO L608 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2018-11-23 09:34:17,980 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-23 09:34:17,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2018-11-23 09:34:17,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 09:34:17,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:34:17,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:34:17,980 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:34:17,980 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:34:17,981 INFO L794 eck$LassoCheckResult]: Stem: 1686#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1687#L36 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1689#L13-1 assume !!(f_~k~0 <= 1073741823); 1679#L16-6 assume !(f_~z~0 < f_~k~0); 1680#L16-7 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1688#L4-3 assume !(0 == __VERIFIER_assert_~cond); 1677#L4-5 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1678#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1690#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1693#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1694#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1706#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1705#L24-3 assume 0 != f_~c~0 % 256; 1703#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1702#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1700#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1699#L24-5 [2018-11-23 09:34:17,981 INFO L796 eck$LassoCheckResult]: Loop: 1699#L24-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1698#L24-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1699#L24-5 [2018-11-23 09:34:17,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:17,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1714981628, now seen corresponding path program 3 times [2018-11-23 09:34:17,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:17,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:17,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:17,981 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:17,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:17,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:17,989 INFO L82 PathProgramCache]: Analyzing trace with hash 4904, now seen corresponding path program 3 times [2018-11-23 09:34:17,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:17,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:17,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:17,990 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:17,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:17,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:17,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1170101099, now seen corresponding path program 4 times [2018-11-23 09:34:17,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:17,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:17,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:17,993 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:17,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:18,132 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:18,132 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:18,132 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:18,132 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:18,132 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:34:18,132 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:18,132 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:18,132 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:18,132 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-23 09:34:18,132 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:18,132 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:18,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:18,262 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:18,262 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/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 [2018-11-23 09:34:18,265 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:18,265 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d790309f-4070-448b-a67f-640b7513ff5a/bin-2019/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:18,283 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:34:18,283 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:30,331 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 09:34:30,335 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:30,336 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:30,336 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:30,336 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:30,336 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:34:30,336 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:30,336 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:30,336 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:30,336 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-23 09:34:30,336 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:30,336 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:30,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:30,466 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:30,466 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:34:30,466 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,466 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,466 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:30,466 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,466 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,466 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,467 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:30,467 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:30,467 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,467 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,467 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,467 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,467 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,468 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,468 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:30,468 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:30,470 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,470 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,470 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,470 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:30,470 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,470 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,470 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,470 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:30,470 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:30,471 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,471 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,471 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,471 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,471 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,471 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,472 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:30,472 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:30,473 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,473 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,473 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,474 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,474 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,474 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,474 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:30,474 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:30,475 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,475 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,476 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,476 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:30,476 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,476 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,476 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,476 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:30,476 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:30,477 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,477 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,477 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,477 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:30,477 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,477 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,477 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,478 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:30,478 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:30,478 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,478 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,478 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,479 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:30,479 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,479 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,479 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,479 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:30,479 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:30,479 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,480 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,480 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,480 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,480 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,480 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,481 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:30,481 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:30,482 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,483 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,483 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,483 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,483 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,483 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,484 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:30,484 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:30,485 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:30,485 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:30,485 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:30,485 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:30,485 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:30,485 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:30,486 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:34:30,486 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:34:30,493 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:34:30,502 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2018-11-23 09:34:30,502 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-23 09:34:30,503 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:34:30,503 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 09:34:30,503 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:34:30,504 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] [2018-11-23 09:34:30,539 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 09:34:30,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:30,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:30,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:30,639 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 [2018-11-23 09:34:30,639 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 6 states. [2018-11-23 09:34:30,675 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. [2018-11-23 09:34:30,676 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 [2018-11-23 09:34:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 09:34:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2018-11-23 09:34:30,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 09:34:30,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:30,676 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 09:34:30,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:30,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:30,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:30,728 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 [2018-11-23 09:34:30,728 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 6 states. [2018-11-23 09:34:30,758 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. [2018-11-23 09:34:30,758 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 [2018-11-23 09:34:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 09:34:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2018-11-23 09:34:30,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 09:34:30,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:30,759 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 09:34:30,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:30,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:30,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:30,806 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 [2018-11-23 09:34:30,806 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 15 Second operand 6 states. [2018-11-23 09:34:30,839 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. [2018-11-23 09:34:30,840 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 [2018-11-23 09:34:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 09:34:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 23 transitions. [2018-11-23 09:34:30,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 09:34:30,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:30,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 18 letters. Loop has 2 letters. [2018-11-23 09:34:30,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:30,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 16 letters. Loop has 4 letters. [2018-11-23 09:34:30,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:30,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2018-11-23 09:34:30,841 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 09:34:30,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2018-11-23 09:34:30,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 09:34:30,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 09:34:30,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 09:34:30,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 09:34:30,841 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:34:30,841 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:34:30,841 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:34:30,841 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-23 09:34:30,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 09:34:30,842 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 09:34:30,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 09:34:30,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 09:34:30 BoogieIcfgContainer [2018-11-23 09:34:30,846 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 09:34:30,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 09:34:30,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 09:34:30,846 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 09:34:30,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:22" (3/4) ... [2018-11-23 09:34:30,849 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 09:34:30,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 09:34:30,850 INFO L168 Benchmark]: Toolchain (without parser) took 128299.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:30,851 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:34:30,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.64 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:30,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.86 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:30,851 INFO L168 Benchmark]: Boogie Preprocessor took 15.56 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:34:30,851 INFO L168 Benchmark]: RCFGBuilder took 230.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:30,852 INFO L168 Benchmark]: BuchiAutomizer took 127863.52 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:30,852 INFO L168 Benchmark]: Witness Printer took 3.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:34:30,854 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.64 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 21.86 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.56 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 230.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 127863.52 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 24.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 57.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d 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 127.8s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 126.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. 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, 420 SDslu, 110 SDs, 0 SdLazy, 185 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital64 mio100 ax100 hnf97 lsp44 ukn100 mio100 lsp100 div296 bol100 ite100 ukn100 eq146 hnf49 smp87 dnf100 smp100 tf101 neg98 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 39 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 10 LassoNonterminationAnalysisTime: 121.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...