./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex01_false-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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 07:34:53,459 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:34:53,460 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:34:53,467 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:34:53,467 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:34:53,468 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:34:53,469 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:34:53,470 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:34:53,471 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:34:53,472 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:34:53,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:34:53,472 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:34:53,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:34:53,474 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:34:53,474 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:34:53,475 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:34:53,476 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:34:53,477 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:34:53,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:34:53,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:34:53,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:34:53,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:34:53,483 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:34:53,483 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:34:53,483 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:34:53,484 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:34:53,484 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:34:53,485 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:34:53,486 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:34:53,486 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:34:53,486 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:34:53,487 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:34:53,487 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:34:53,487 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:34:53,488 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:34:53,488 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:34:53,489 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 07:34:53,497 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:34:53,497 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:34:53,498 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:34:53,498 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:34:53,499 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:34:53,499 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 07:34:53,499 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 07:34:53,499 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 07:34:53,499 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 07:34:53,499 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 07:34:53,499 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 07:34:53,499 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:34:53,500 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:34:53,500 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 07:34:53,500 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:34:53,500 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:34:53,500 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:34:53,500 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 07:34:53,500 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 07:34:53,500 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 07:34:53,501 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:34:53,501 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:34:53,501 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 07:34:53,501 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:34:53,501 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 07:34:53,501 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:34:53,501 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:34:53,502 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 07:34:53,502 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:34:53,502 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 07:34:53,502 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 07:34:53,503 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 07:34:53,503 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_a739b49e-df0d-4666-ad00-bf3446327853/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 -> b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 [2018-11-23 07:34:53,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:34:53,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:34:53,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:34:53,541 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:34:53,542 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:34:53,542 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-23 07:34:53,589 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/data/34f9f4706/6b6165c3d5814d079afb2f6787fbdc34/FLAG6edae4146 [2018-11-23 07:34:53,934 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:34:53,934 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-23 07:34:53,938 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/data/34f9f4706/6b6165c3d5814d079afb2f6787fbdc34/FLAG6edae4146 [2018-11-23 07:34:54,348 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/data/34f9f4706/6b6165c3d5814d079afb2f6787fbdc34 [2018-11-23 07:34:54,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:34:54,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:34:54,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:34:54,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:34:54,354 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:34:54,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b02929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54, skipping insertion in model container [2018-11-23 07:34:54,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:34:54,376 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:34:54,481 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:34:54,483 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:34:54,496 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:34:54,504 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:34:54,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54 WrapperNode [2018-11-23 07:34:54,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:34:54,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:34:54,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:34:54,505 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:34:54,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:34:54,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:34:54,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:34:54,527 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:34:54,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... [2018-11-23 07:34:54,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:34:54,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:34:54,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:34:54,541 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:34:54,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:34:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:34:54,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:34:54,763 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:34:54,764 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-23 07:34:54,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:34:54 BoogieIcfgContainer [2018-11-23 07:34:54,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:34:54,764 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 07:34:54,764 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 07:34:54,767 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 07:34:54,768 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 07:34:54,768 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 07:34:54" (1/3) ... [2018-11-23 07:34:54,769 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48e5b834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 07:34:54, skipping insertion in model container [2018-11-23 07:34:54,769 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 07:34:54,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:34:54" (2/3) ... [2018-11-23 07:34:54,769 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48e5b834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 07:34:54, skipping insertion in model container [2018-11-23 07:34:54,769 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 07:34:54,769 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:34:54" (3/3) ... [2018-11-23 07:34:54,771 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-11-23 07:34:54,831 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:34:54,832 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 07:34:54,832 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 07:34:54,832 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 07:34:54,832 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:34:54,832 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:34:54,832 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 07:34:54,832 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:34:54,833 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 07:34:54,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-23 07:34:54,869 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-23 07:34:54,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:34:54,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:34:54,876 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 07:34:54,876 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 07:34:54,877 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 07:34:54,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-23 07:34:54,879 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-23 07:34:54,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:34:54,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:34:54,879 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 07:34:54,880 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 07:34:54,888 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 13#L32true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 17#L12true assume !!(f_~k~0 <= 1073741823); 23#L15-1true [2018-11-23 07:34:54,888 INFO L796 eck$LassoCheckResult]: Loop: 23#L15-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 23#L15-1true [2018-11-23 07:34:54,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:34:54,895 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2018-11-23 07:34:54,897 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:34:54,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:34:54,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:54,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:34:54,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:54,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:34:54,976 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2018-11-23 07:34:54,976 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:34:54,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:34:54,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:54,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:34:54,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:54,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:34:54,982 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2018-11-23 07:34:54,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:34:54,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:34:54,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:54,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:34:54,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:34:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:34:55,069 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:34:55,070 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:34:55,071 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:34:55,071 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:34:55,071 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:34:55,071 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:34:55,071 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:34:55,071 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:34:55,071 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-23 07:34:55,072 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:34:55,072 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:34:55,096 INFO 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 07:34:55,103 INFO 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 07:34:55,105 INFO 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 07:34:55,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:34:55,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:34:55,141 INFO 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 07:34:55,145 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 07:34:55,152 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 07:34:55,154 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 07:34:55,156 INFO 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 07:34:55,157 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 07:34:55,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:34:55,161 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 07:34:55,338 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:34:55,339 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:34:55,349 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:34:55,350 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:34:55,357 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:34:55,357 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:34:55,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:34:55,379 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:34:55,383 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:34:55,383 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:34:55,411 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:34:55,411 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:34:55,433 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:34:55,433 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:07,488 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 07:35:07,495 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:07,495 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:07,495 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:07,495 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:07,495 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:07,495 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:07,496 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:07,496 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:07,496 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-23 07:35:07,496 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:07,496 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:07,498 INFO 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 07:35:07,499 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 07:35:07,501 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 07:35:07,502 INFO 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 07:35:07,504 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 07:35:07,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:07,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:07,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:07,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:07,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:07,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:07,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:07,521 INFO 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 07:35:07,621 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:07,625 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:07,627 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 07:35:07,628 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:07,628 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:07,629 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:07,629 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:07,629 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:07,631 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:07,631 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:07,634 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:07,634 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 07:35:07,635 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:07,635 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:07,636 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:07,636 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:07,636 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:07,637 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:07,637 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:07,638 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:07,638 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 07:35:07,639 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:07,639 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:07,639 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:07,640 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:07,640 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:07,640 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:07,640 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:07,641 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:07,642 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 07:35:07,642 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:07,642 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:07,643 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:07,643 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:07,643 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:07,643 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:07,643 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:07,644 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:07,644 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 07:35:07,645 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:07,645 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:07,645 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:07,646 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:07,650 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:07,650 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:07,699 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:07,725 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 07:35:07,726 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-23 07:35:07,727 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:07,729 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:07,730 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:07,730 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 07:35:07,737 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:07,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:07,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:07,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:07,798 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 07:35:07,808 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 07:35:07,808 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2018-11-23 07:35:07,874 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 69 states and 99 transitions. Complement of second has 7 states. [2018-11-23 07:35:07,874 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 07:35:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 07:35:07,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2018-11-23 07:35:07,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-23 07:35:07,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:07,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-23 07:35:07,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:07,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 07:35:07,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:07,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 99 transitions. [2018-11-23 07:35:07,885 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-11-23 07:35:07,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 23 states and 31 transitions. [2018-11-23 07:35:07,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-23 07:35:07,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-23 07:35:07,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2018-11-23 07:35:07,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 07:35:07,891 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2018-11-23 07:35:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2018-11-23 07:35:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-11-23 07:35:07,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 07:35:07,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2018-11-23 07:35:07,913 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-23 07:35:07,913 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-23 07:35:07,913 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 07:35:07,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2018-11-23 07:35:07,914 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-11-23 07:35:07,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:07,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:07,914 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 07:35:07,914 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 07:35:07,915 INFO L794 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 147#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 149#L12-1 assume !!(f_~k~0 <= 1073741823); 150#L15-4 [2018-11-23 07:35:07,915 INFO L796 eck$LassoCheckResult]: Loop: 150#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 150#L15-4 [2018-11-23 07:35:07,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:07,915 INFO L82 PathProgramCache]: Analyzing trace with hash 32453, now seen corresponding path program 1 times [2018-11-23 07:35:07,915 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:07,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:07,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:07,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:07,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:07,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:07,925 INFO L82 PathProgramCache]: Analyzing trace with hash 98, now seen corresponding path program 1 times [2018-11-23 07:35:07,926 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:07,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:07,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:07,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:07,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:07,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:07,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1006110, now seen corresponding path program 1 times [2018-11-23 07:35:07,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:07,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:07,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:07,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:07,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:07,981 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:07,981 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:07,981 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:07,981 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:07,981 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:07,981 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:07,982 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:07,982 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:07,982 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-23 07:35:07,982 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:07,982 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:07,984 INFO 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 07:35:07,986 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 07:35:07,989 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 07:35:07,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:07,999 INFO 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 07:35:08,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:08,004 INFO 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 07:35:08,005 INFO 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 07:35:08,006 INFO 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 07:35:08,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:08,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:08,018 INFO 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 07:35:08,019 INFO 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 07:35:08,097 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:08,097 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,101 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,101 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,105 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,106 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,129 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,129 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,131 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,131 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,147 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,149 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,150 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,165 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,165 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,170 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,170 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,187 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,187 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,189 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,189 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,205 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,205 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,208 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,208 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,225 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,225 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,227 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,227 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,243 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,243 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,245 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,245 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,262 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,262 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:08,264 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:08,264 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,281 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:08,281 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:08,301 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:08,301 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:20,358 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 07:35:20,365 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:20,365 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:20,365 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:20,366 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:20,366 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:20,366 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:20,366 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:20,366 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:20,366 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-23 07:35:20,366 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:20,366 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:20,368 INFO 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 07:35:20,369 INFO 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 07:35:20,371 INFO 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 07:35:20,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:20,377 INFO 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 07:35:20,379 INFO 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 07:35:20,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:20,395 INFO 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 07:35:20,397 INFO 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 07:35:20,400 INFO 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 07:35:20,415 INFO 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 07:35:20,417 INFO 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 07:35:20,418 INFO 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 07:35:20,476 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:20,476 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:20,477 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 07:35:20,477 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:20,477 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:20,478 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:20,478 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:20,478 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:20,478 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:20,479 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:20,479 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:20,480 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 07:35:20,480 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:20,481 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:20,481 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:20,481 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:20,481 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:20,481 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:20,481 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:20,482 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:20,482 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 07:35:20,482 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:20,483 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:20,483 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:20,483 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:20,483 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:20,483 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:20,484 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:20,484 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:20,485 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 07:35:20,485 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:20,485 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:20,485 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:20,485 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:20,486 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:20,486 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:20,486 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:20,486 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:20,487 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 07:35:20,487 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:20,488 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:20,488 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:20,488 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:20,488 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:20,488 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:20,488 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:20,489 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:20,489 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 07:35:20,489 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:20,490 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:20,490 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:20,491 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:20,491 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:20,492 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:20,492 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:20,493 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:20,493 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 07:35:20,493 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:20,494 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:20,494 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:20,494 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:20,496 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:20,496 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:20,525 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:20,550 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2018-11-23 07:35:20,550 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-23 07:35:20,550 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:20,552 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:20,552 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:20,552 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 07:35:20,574 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:20,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:20,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:20,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:20,650 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 07:35:20,650 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 07:35:20,650 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-11-23 07:35:20,695 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 40 transitions. Complement of second has 6 states. [2018-11-23 07:35:20,696 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 07:35:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 07:35:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-23 07:35:20,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-23 07:35:20,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:20,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-23 07:35:20,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:20,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 07:35:20,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:20,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 40 transitions. [2018-11-23 07:35:20,699 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-11-23 07:35:20,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 24 states and 33 transitions. [2018-11-23 07:35:20,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-23 07:35:20,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-23 07:35:20,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 33 transitions. [2018-11-23 07:35:20,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 07:35:20,701 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-11-23 07:35:20,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 33 transitions. [2018-11-23 07:35:20,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2018-11-23 07:35:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 07:35:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2018-11-23 07:35:20,706 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-11-23 07:35:20,706 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-11-23 07:35:20,706 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 07:35:20,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2018-11-23 07:35:20,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 07:35:20,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:20,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:20,708 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 07:35:20,708 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 07:35:20,708 INFO L794 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 236#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 237#L12 assume !!(f_~k~0 <= 1073741823); 241#L15-1 assume !(f_~z~0 < f_~k~0); 242#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 243#L3 assume !(0 == __VERIFIER_assert_~cond); 230#L20-2 [2018-11-23 07:35:20,708 INFO L796 eck$LassoCheckResult]: Loop: 230#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 231#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 230#L20-2 [2018-11-23 07:35:20,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:20,709 INFO L82 PathProgramCache]: Analyzing trace with hash 920111122, now seen corresponding path program 1 times [2018-11-23 07:35:20,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:20,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:20,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:20,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:20,765 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 07:35:20,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:35:20,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 07:35:20,770 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 07:35:20,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:20,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 1 times [2018-11-23 07:35:20,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:20,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:20,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:20,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:20,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:35:20,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:35:20,802 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-23 07:35:20,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:35:20,834 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2018-11-23 07:35:20,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:35:20,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2018-11-23 07:35:20,835 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 07:35:20,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2018-11-23 07:35:20,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-23 07:35:20,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-23 07:35:20,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-23 07:35:20,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 07:35:20,835 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-23 07:35:20,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-23 07:35:20,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 07:35:20,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 07:35:20,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-23 07:35:20,836 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-23 07:35:20,836 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-23 07:35:20,836 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 07:35:20,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-11-23 07:35:20,837 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 07:35:20,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:20,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:20,837 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:35:20,837 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 07:35:20,838 INFO L794 eck$LassoCheckResult]: Stem: 284#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 285#L32 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; 286#L12 assume !!(f_~k~0 <= 1073741823); 290#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 293#L15-1 assume !(f_~z~0 < f_~k~0); 291#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 292#L3 assume !(0 == __VERIFIER_assert_~cond); 279#L20-2 [2018-11-23 07:35:20,838 INFO L796 eck$LassoCheckResult]: Loop: 279#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 280#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 279#L20-2 [2018-11-23 07:35:20,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:20,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1541272662, now seen corresponding path program 1 times [2018-11-23 07:35:20,838 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:20,838 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:20,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:20,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:20,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:20,845 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 2 times [2018-11-23 07:35:20,845 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:20,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:20,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:20,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:20,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:20,850 INFO L82 PathProgramCache]: Analyzing trace with hash 600690225, now seen corresponding path program 1 times [2018-11-23 07:35:20,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:20,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:20,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,851 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:20,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:20,923 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:20,923 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:20,923 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:20,923 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:20,923 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:20,923 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:20,923 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:20,923 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:20,923 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-23 07:35:20,923 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:20,923 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:20,924 INFO 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 07:35:20,927 INFO 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 07:35:20,930 INFO 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 07:35:20,935 INFO 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 07:35:20,937 INFO 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 07:35:20,938 INFO 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 07:35:20,939 INFO 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 07:35:20,940 INFO 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 07:35:20,943 INFO 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 07:35:20,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:20,947 INFO 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 07:35:20,948 INFO 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 07:35:21,025 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:21,025 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,029 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:21,029 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:21,031 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:21,031 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,046 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:21,046 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:21,051 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:21,051 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,066 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:21,067 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:21,085 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:21,158 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 07:35:21,159 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:21,159 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:21,159 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:21,159 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:21,159 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:21,159 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:21,159 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:21,159 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:21,159 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-23 07:35:21,160 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:21,160 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:21,161 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 07:35:21,162 INFO 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 07:35:21,166 INFO 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 07:35:21,171 INFO 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 07:35:21,174 INFO 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 07:35:21,176 INFO 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 07:35:21,177 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 07:35:21,178 INFO 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 07:35:21,185 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 07:35:21,189 INFO 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 07:35:21,190 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 07:35:21,191 INFO 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 07:35:21,261 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:21,261 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:21,262 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 07:35:21,262 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,262 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:21,262 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,262 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,262 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,263 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:21,263 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:21,263 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,263 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 07:35:21,264 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,264 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,264 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,264 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,264 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:21,264 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:21,271 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,271 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 07:35:21,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,271 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,272 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,273 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:21,273 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:21,280 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:21,284 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 07:35:21,284 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 07:35:21,284 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:21,286 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:21,287 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:21,287 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 07:35:21,305 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:21,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:21,325 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:21,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:21,343 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 07:35:21,343 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 07:35:21,344 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-23 07:35:21,366 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 24 states and 31 transitions. Complement of second has 6 states. [2018-11-23 07:35:21,366 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 07:35:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-23 07:35:21,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-23 07:35:21,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:21,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-23 07:35:21,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:21,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-23 07:35:21,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:21,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2018-11-23 07:35:21,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 07:35:21,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 30 transitions. [2018-11-23 07:35:21,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-23 07:35:21,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-23 07:35:21,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2018-11-23 07:35:21,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 07:35:21,369 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-23 07:35:21,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2018-11-23 07:35:21,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-23 07:35:21,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-23 07:35:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2018-11-23 07:35:21,371 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-11-23 07:35:21,371 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-11-23 07:35:21,371 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 07:35:21,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2018-11-23 07:35:21,372 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 07:35:21,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:21,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:21,372 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:35:21,372 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 07:35:21,373 INFO L794 eck$LassoCheckResult]: Stem: 388#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 389#L32 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; 391#L12-1 assume !!(f_~k~0 <= 1073741823); 392#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 393#L15-4 assume !(f_~z~0 < f_~k~0); 386#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 387#L3-3 assume !(0 == __VERIFIER_assert_~cond); 377#L20-5 [2018-11-23 07:35:21,373 INFO L796 eck$LassoCheckResult]: Loop: 377#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 378#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 377#L20-5 [2018-11-23 07:35:21,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash -91683318, now seen corresponding path program 1 times [2018-11-23 07:35:21,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:21,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:21,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:21,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:21,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:21,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:21,381 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 1 times [2018-11-23 07:35:21,381 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:21,381 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:21,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:21,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:21,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:21,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:21,386 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647473, now seen corresponding path program 1 times [2018-11-23 07:35:21,386 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:21,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:21,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:21,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:21,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:21,480 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:21,481 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:21,481 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:21,481 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:21,481 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:21,481 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:21,481 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:21,481 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:21,481 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-23 07:35:21,481 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:21,481 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:21,482 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 07:35:21,485 INFO 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 07:35:21,486 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 07:35:21,490 INFO 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 07:35:21,495 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 07:35:21,498 INFO 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 07:35:21,499 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 07:35:21,503 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 07:35:21,504 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 07:35:21,506 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 07:35:21,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:21,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:21,590 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:21,590 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,593 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:21,593 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:21,595 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:21,595 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,611 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:21,611 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:21,618 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:21,618 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,633 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:21,633 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:21,639 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:21,639 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:21,654 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:21,671 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:21,671 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:21,728 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 07:35:21,730 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:21,730 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:21,730 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:21,730 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:21,730 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:21,730 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:21,730 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:21,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:21,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-23 07:35:21,731 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:21,731 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:21,732 INFO 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 07:35:21,734 INFO 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 07:35:21,741 INFO 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 07:35:21,744 INFO 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 07:35:21,748 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 07:35:21,750 INFO 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 07:35:21,762 INFO 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 07:35:21,763 INFO 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 07:35:21,765 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 07:35:21,767 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 07:35:21,774 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 07:35:21,775 INFO 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 07:35:21,888 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:21,888 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:21,888 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 07:35:21,888 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,888 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:21,889 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,889 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:21,889 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:21,890 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,890 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 07:35:21,890 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,890 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,890 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,890 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,891 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:21,891 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:21,897 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,897 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 07:35:21,898 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,898 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,898 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,898 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,899 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:21,899 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:21,902 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,903 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 07:35:21,903 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,903 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:21,903 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,903 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,903 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,904 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:21,904 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:21,907 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,907 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 07:35:21,908 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,908 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:21,908 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,908 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,908 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,908 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:21,908 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:21,909 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,909 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 07:35:21,909 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,909 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,910 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,910 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,910 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:21,910 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:21,914 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,914 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 07:35:21,914 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,914 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:21,915 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,915 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,915 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,915 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:21,915 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:21,915 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,916 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 07:35:21,916 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,916 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:21,916 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,916 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,916 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,917 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:21,917 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:21,918 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,918 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 07:35:21,919 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,919 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:21,919 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,919 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,919 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,919 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:21,919 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:21,920 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:21,920 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 07:35:21,920 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:21,920 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:21,921 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:21,921 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:21,922 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:21,922 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:21,928 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:21,930 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 07:35:21,930 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 07:35:21,931 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:21,933 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:21,933 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:21,933 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 07:35:21,936 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:21,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:21,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:21,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:21,976 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 07:35:21,976 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 07:35:21,976 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-11-23 07:35:22,008 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 28 states and 37 transitions. Complement of second has 6 states. [2018-11-23 07:35:22,008 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 07:35:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-23 07:35:22,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-23 07:35:22,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:22,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-23 07:35:22,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:22,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-23 07:35:22,009 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:22,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2018-11-23 07:35:22,010 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 07:35:22,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2018-11-23 07:35:22,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-23 07:35:22,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-23 07:35:22,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2018-11-23 07:35:22,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 07:35:22,010 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-11-23 07:35:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2018-11-23 07:35:22,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-11-23 07:35:22,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 07:35:22,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2018-11-23 07:35:22,014 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-11-23 07:35:22,014 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-11-23 07:35:22,014 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 07:35:22,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2018-11-23 07:35:22,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 07:35:22,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:22,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:22,015 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:35:22,015 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 07:35:22,016 INFO L794 eck$LassoCheckResult]: Stem: 504#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 500#L32 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; 501#L12 assume !!(f_~k~0 <= 1073741823); 507#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 511#L15-1 assume !(f_~z~0 < f_~k~0); 508#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 509#L3 assume !(0 == __VERIFIER_assert_~cond); 510#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 495#L20 assume 0 != f_~c~0 % 256; 497#L21 [2018-11-23 07:35:22,016 INFO L796 eck$LassoCheckResult]: Loop: 497#L21 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; 492#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 493#L20 assume 0 != f_~c~0 % 256; 497#L21 [2018-11-23 07:35:22,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:22,016 INFO L82 PathProgramCache]: Analyzing trace with hash 600690221, now seen corresponding path program 1 times [2018-11-23 07:35:22,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:22,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:22,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:22,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:22,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:22,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:22,023 INFO L82 PathProgramCache]: Analyzing trace with hash 74319, now seen corresponding path program 1 times [2018-11-23 07:35:22,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:22,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:22,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:22,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:22,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:22,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:22,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304093, now seen corresponding path program 1 times [2018-11-23 07:35:22,028 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:22,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:22,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:22,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:22,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:22,062 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:22,062 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:22,062 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:22,062 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:22,062 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:22,062 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:22,062 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:22,063 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:22,063 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Loop [2018-11-23 07:35:22,063 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:22,063 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:22,064 INFO 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 07:35:22,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:22,075 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 07:35:22,079 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 07:35:22,152 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:22,152 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,154 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,154 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,171 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,171 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,174 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,174 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,182 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,182 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,213 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,213 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,225 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,225 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,258 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,297 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:22,297 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,318 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,318 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 07:35:22,428 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:22,428 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:22,428 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:22,428 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:22,428 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:22,428 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:22,428 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:22,429 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:22,429 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-23 07:35:22,429 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:22,429 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:22,430 INFO 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 07:35:22,435 INFO 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 07:35:22,436 INFO 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 07:35:22,445 INFO 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 07:35:22,446 INFO 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 07:35:22,449 INFO 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 07:35:22,451 INFO 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 07:35:22,455 INFO 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 07:35:22,456 INFO 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 07:35:22,462 INFO 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 07:35:22,469 INFO 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 07:35:22,617 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:22,617 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,621 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,621 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,642 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:22,643 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,656 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,656 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-6, ULTIMATE.start_f_~k~0=-1}, {ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=5}, {ULTIMATE.start_f_~z~0=3, ULTIMATE.start_f_~k~0=-4}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,675 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,675 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,681 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,681 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,700 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,700 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,708 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,708 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0, ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_#t~nondet4=255, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,728 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,728 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,730 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,730 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,749 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,749 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,751 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,751 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,770 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,770 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,772 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,772 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,791 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,791 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,794 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,794 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,813 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,813 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:22,815 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:22,815 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,834 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:22,834 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:22,856 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:22,856 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,021 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 07:35:23,022 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:23,022 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:23,022 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:23,022 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:23,022 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:23,022 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:23,022 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:23,023 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:23,023 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-23 07:35:23,023 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:23,023 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:23,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,040 INFO 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 07:35:23,046 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 07:35:23,047 INFO 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 07:35:23,048 INFO 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 07:35:23,051 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 07:35:23,052 INFO 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 07:35:23,198 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:23,198 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:23,199 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 07:35:23,199 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:23,199 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:23,200 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:23,200 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:23,200 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:23,201 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:23,203 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:23,203 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 07:35:23,204 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:23,204 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:23,204 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:23,204 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:23,205 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:23,205 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:23,210 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:23,211 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 07:35:23,211 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:23,211 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:23,211 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:23,211 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:23,213 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:23,213 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:23,218 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:23,219 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 07:35:23,219 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:23,219 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:23,219 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:23,220 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:23,220 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:23,220 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:23,220 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:23,225 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:23,226 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 07:35:23,226 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:23,226 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:23,226 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:23,226 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:23,227 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:23,228 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:23,233 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:23,234 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 07:35:23,234 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:23,234 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:23,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:23,234 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:23,235 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:23,236 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:23,242 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:23,246 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 07:35:23,247 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 07:35:23,247 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:23,248 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:23,248 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:23,248 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-23 07:35:23,266 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:23,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:23,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:23,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:23,329 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 07:35:23,330 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 07:35:23,330 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-23 07:35:23,362 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 36 states and 48 transitions. Complement of second has 7 states. [2018-11-23 07:35:23,362 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 07:35:23,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 07:35:23,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-11-23 07:35:23,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 07:35:23,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:23,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-23 07:35:23,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:23,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-23 07:35:23,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:23,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2018-11-23 07:35:23,365 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-23 07:35:23,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 32 states and 43 transitions. [2018-11-23 07:35:23,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-23 07:35:23,366 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-23 07:35:23,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2018-11-23 07:35:23,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 07:35:23,366 INFO L705 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-11-23 07:35:23,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2018-11-23 07:35:23,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-11-23 07:35:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 07:35:23,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2018-11-23 07:35:23,368 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-11-23 07:35:23,368 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-11-23 07:35:23,368 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-23 07:35:23,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2018-11-23 07:35:23,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-23 07:35:23,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:23,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:23,369 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:35:23,369 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 07:35:23,370 INFO L794 eck$LassoCheckResult]: Stem: 639#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 640#L32 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; 642#L12-1 assume !!(f_~k~0 <= 1073741823); 643#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 644#L15-4 assume !(f_~z~0 < f_~k~0); 635#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 636#L3-3 assume !(0 == __VERIFIER_assert_~cond); 638#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 623#L20-3 assume 0 != f_~c~0 % 256; 624#L21-1 [2018-11-23 07:35:23,370 INFO L796 eck$LassoCheckResult]: Loop: 624#L21-1 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; 619#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 620#L20-3 assume 0 != f_~c~0 % 256; 624#L21-1 [2018-11-23 07:35:23,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:23,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647469, now seen corresponding path program 1 times [2018-11-23 07:35:23,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:23,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:23,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:23,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:23,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:23,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:23,378 INFO L82 PathProgramCache]: Analyzing trace with hash 122976, now seen corresponding path program 1 times [2018-11-23 07:35:23,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:23,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:23,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:23,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:23,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:23,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:23,384 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800140, now seen corresponding path program 1 times [2018-11-23 07:35:23,384 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:23,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:23,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:23,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:23,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:23,412 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:23,412 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:23,413 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:23,413 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:23,413 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:23,413 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:23,413 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:23,413 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:23,413 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Loop [2018-11-23 07:35:23,413 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:23,413 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:23,414 INFO 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 07:35:23,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,426 INFO 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 07:35:23,430 INFO 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 07:35:23,492 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:23,492 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,494 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,494 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,514 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:23,514 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,522 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,522 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,537 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,538 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,544 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,544 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,560 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,560 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,574 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,575 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,577 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,577 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,583 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,583 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-192, ULTIMATE.start_f_~y~0=64} Honda state: {ULTIMATE.start_f_#t~nondet4=-192, ULTIMATE.start_f_~y~0=64} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-23 07:35:23,663 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:23,663 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:23,663 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:23,663 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:23,663 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:23,663 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:23,663 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:23,663 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:23,663 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-23 07:35:23,663 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:23,664 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:23,664 INFO 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 07:35:23,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,677 INFO 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 07:35:23,678 INFO 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 07:35:23,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,683 INFO 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 07:35:23,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:23,786 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:23,786 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,788 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,788 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,798 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,798 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=-128, ULTIMATE.start_f_#t~nondet3=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,814 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,814 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,816 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,816 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,831 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,831 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,836 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,836 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,851 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,851 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,853 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,853 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,867 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,883 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:23,884 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,896 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,896 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~k~0=2, ULTIMATE.start_f_~z~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=-7}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=6}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,911 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,913 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,913 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,928 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,928 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,935 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,935 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0, ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_~y~0=255, ULTIMATE.start_f_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,951 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,951 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,953 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,953 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,968 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,968 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,970 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,970 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:23,987 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:23,988 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:23,990 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:23,990 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:24,008 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:24,008 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:24,028 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:24,029 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:24,179 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 07:35:24,180 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:24,180 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:24,180 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:24,180 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:24,180 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:24,180 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:24,180 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:24,180 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:24,180 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-23 07:35:24,180 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:24,180 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:24,181 INFO 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 07:35:24,183 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 07:35:24,184 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 07:35:24,185 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 07:35:24,190 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 07:35:24,192 INFO 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 07:35:24,196 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 07:35:24,198 INFO 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 07:35:24,199 INFO 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 07:35:24,204 INFO 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 07:35:24,207 INFO 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 07:35:24,307 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:24,308 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:24,308 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 07:35:24,308 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,308 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,308 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,309 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,309 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:24,309 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:24,310 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,311 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 07:35:24,311 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,311 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:24,311 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,311 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,311 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,311 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:24,311 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:24,312 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,312 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 07:35:24,312 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,312 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:24,313 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,313 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,313 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,313 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:24,313 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:24,313 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,313 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 07:35:24,314 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,314 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,314 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,314 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,315 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:24,315 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:24,316 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,317 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 07:35:24,317 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,317 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:24,317 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,317 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,317 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,318 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:24,318 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:24,318 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,318 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 07:35:24,319 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,319 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,319 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,319 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,319 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:24,320 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:24,322 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,323 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 07:35:24,323 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,323 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:24,323 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,323 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,323 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,324 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:24,324 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:24,324 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,324 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 07:35:24,324 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,325 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:24,325 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,325 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,325 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,325 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:24,325 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:24,326 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,326 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 07:35:24,326 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,326 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,326 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,326 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,327 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:24,327 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:24,331 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,331 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 07:35:24,332 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,332 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,332 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,332 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,333 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:24,333 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:24,336 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:24,337 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 07:35:24,337 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:24,337 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:24,337 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:24,337 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:24,338 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:24,338 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:24,343 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:24,346 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 07:35:24,346 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 07:35:24,347 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:24,348 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:24,348 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:24,348 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 07:35:24,381 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:24,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:24,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:24,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:24,425 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 07:35:24,425 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 07:35:24,425 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18 Second operand 5 states. [2018-11-23 07:35:24,454 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 41 states and 55 transitions. Complement of second has 7 states. [2018-11-23 07:35:24,454 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 07:35:24,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 07:35:24,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-11-23 07:35:24,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-23 07:35:24,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:24,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-23 07:35:24,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:24,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-23 07:35:24,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:24,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 55 transitions. [2018-11-23 07:35:24,456 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 07:35:24,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 50 transitions. [2018-11-23 07:35:24,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-23 07:35:24,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-23 07:35:24,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2018-11-23 07:35:24,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 07:35:24,457 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-11-23 07:35:24,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2018-11-23 07:35:24,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-11-23 07:35:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 07:35:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2018-11-23 07:35:24,459 INFO L728 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-11-23 07:35:24,459 INFO L608 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-11-23 07:35:24,459 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-23 07:35:24,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2018-11-23 07:35:24,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 07:35:24,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:24,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:24,460 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:35:24,460 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 07:35:24,460 INFO L794 eck$LassoCheckResult]: Stem: 782#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 783#L32 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; 784#L12 assume !!(f_~k~0 <= 1073741823); 789#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 792#L15-1 assume !(f_~z~0 < f_~k~0); 790#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 791#L3 assume !(0 == __VERIFIER_assert_~cond); 768#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 770#L20 assume 0 != f_~c~0 % 256; 780#L21 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; 771#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 772#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 774#L20-2 [2018-11-23 07:35:24,460 INFO L796 eck$LassoCheckResult]: Loop: 774#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 773#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 774#L20-2 [2018-11-23 07:35:24,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:24,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304089, now seen corresponding path program 1 times [2018-11-23 07:35:24,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:24,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:24,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:24,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:24,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:24,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:24,469 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 3 times [2018-11-23 07:35:24,469 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:24,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:24,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:24,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:24,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:24,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:24,472 INFO L82 PathProgramCache]: Analyzing trace with hash 167381998, now seen corresponding path program 2 times [2018-11-23 07:35:24,473 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:24,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:24,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:24,473 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:24,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:24,591 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:24,591 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:24,591 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:24,591 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:24,591 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:24,591 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:24,591 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:24,591 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:24,591 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-23 07:35:24,591 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:24,591 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:24,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:24,603 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 07:35:24,605 INFO 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 07:35:24,607 INFO 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 07:35:24,608 INFO 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 07:35:24,611 INFO 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 07:35:24,612 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 07:35:24,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:24,616 INFO 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 07:35:24,618 INFO 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 07:35:24,619 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 07:35:24,620 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 07:35:24,621 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 07:35:24,731 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:24,731 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:24,734 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:24,734 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:24,754 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:24,754 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:25,239 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 07:35:25,240 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:25,241 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:25,241 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:25,241 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:25,241 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:25,241 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:25,241 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:25,241 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:25,241 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-23 07:35:25,241 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:25,241 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:25,242 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 07:35:25,246 INFO 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 07:35:25,255 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 07:35:25,259 INFO 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 07:35:25,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,263 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 07:35:25,264 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 07:35:25,265 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 07:35:25,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,272 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 07:35:25,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,403 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:25,403 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:25,403 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 07:35:25,404 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:25,404 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:25,404 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:25,404 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:25,405 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:25,405 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:25,407 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:25,408 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 07:35:25,408 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:25,408 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:25,408 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:25,408 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:25,409 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:25,410 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:25,415 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:25,420 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 07:35:25,420 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 07:35:25,420 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:25,421 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:25,421 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:25,421 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 07:35:25,426 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:25,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:25,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:25,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:25,488 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 07:35:25,488 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 07:35:25,488 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21 Second operand 4 states. [2018-11-23 07:35:25,512 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21. Second operand 4 states. Result 54 states and 71 transitions. Complement of second has 6 states. [2018-11-23 07:35:25,512 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 07:35:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:25,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-23 07:35:25,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-23 07:35:25,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:25,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 07:35:25,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:25,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-23 07:35:25,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:25,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2018-11-23 07:35:25,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 07:35:25,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 61 transitions. [2018-11-23 07:35:25,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2018-11-23 07:35:25,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-23 07:35:25,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 61 transitions. [2018-11-23 07:35:25,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 07:35:25,515 INFO L705 BuchiCegarLoop]: Abstraction has 46 states and 61 transitions. [2018-11-23 07:35:25,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 61 transitions. [2018-11-23 07:35:25,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-11-23 07:35:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-23 07:35:25,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2018-11-23 07:35:25,518 INFO L728 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-11-23 07:35:25,518 INFO L608 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-11-23 07:35:25,518 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-23 07:35:25,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 59 transitions. [2018-11-23 07:35:25,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 07:35:25,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:25,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:25,519 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:35:25,519 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 07:35:25,520 INFO L794 eck$LassoCheckResult]: Stem: 949#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 950#L32 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; 952#L12-1 assume !!(f_~k~0 <= 1073741823); 954#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 955#L15-4 assume !(f_~z~0 < f_~k~0); 944#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 945#L3-3 assume !(0 == __VERIFIER_assert_~cond); 953#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 960#L20-3 assume 0 != f_~c~0 % 256; 941#L21-1 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; 942#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 964#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 926#L20-5 [2018-11-23 07:35:25,520 INFO L796 eck$LassoCheckResult]: Loop: 926#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 927#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 926#L20-5 [2018-11-23 07:35:25,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:25,520 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800136, now seen corresponding path program 1 times [2018-11-23 07:35:25,520 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:25,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:25,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:25,521 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:25,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:25,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:25,529 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 2 times [2018-11-23 07:35:25,530 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:25,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:25,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:25,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:35:25,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:25,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:25,533 INFO L82 PathProgramCache]: Analyzing trace with hash 630126431, now seen corresponding path program 2 times [2018-11-23 07:35:25,533 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:25,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:25,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:25,534 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:25,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:25,638 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:25,638 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:25,638 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:25,638 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:25,638 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:25,638 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:25,638 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:25,638 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:25,638 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-23 07:35:25,638 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:25,638 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:25,639 INFO 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 07:35:25,645 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 07:35:25,650 INFO 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 07:35:25,657 INFO 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 07:35:25,661 INFO 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 07:35:25,667 INFO 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 07:35:25,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,689 INFO 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 07:35:25,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:25,815 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:25,815 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:25,820 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:25,820 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:25,826 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:25,826 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:25,844 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:25,844 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:25,854 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:25,854 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_a739b49e-df0d-4666-ad00-bf3446327853/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 07:35:25,873 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:25,873 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:25,895 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:25,895 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:26,305 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 07:35:26,307 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:26,307 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:26,307 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:26,307 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:26,307 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:26,307 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:26,307 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:26,307 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:26,307 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-23 07:35:26,307 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:26,307 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:26,308 INFO 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 07:35:26,313 INFO 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 07:35:26,315 INFO 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 07:35:26,318 INFO 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 07:35:26,325 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 07:35:26,327 INFO 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 07:35:26,328 INFO 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 07:35:26,329 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 07:35:26,330 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 07:35:26,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:26,333 INFO 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 07:35:26,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:26,337 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 07:35:26,441 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:26,441 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:26,441 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 07:35:26,442 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:26,442 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:26,442 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:26,442 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:26,443 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:26,443 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:26,444 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:26,444 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 07:35:26,444 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:26,445 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:26,445 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:26,445 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:26,445 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:26,445 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:26,445 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:26,445 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:26,445 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 07:35:26,446 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:26,446 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:26,446 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:26,446 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:26,446 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:26,446 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:26,447 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:26,447 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 07:35:26,447 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:26,447 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:26,447 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:26,447 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:26,448 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:26,448 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:26,452 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:26,454 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 07:35:26,455 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 07:35:26,455 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:26,456 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:26,456 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:26,456 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 07:35:26,475 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:26,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:26,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:26,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:26,519 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 07:35:26,519 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 07:35:26,520 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25 Second operand 4 states. [2018-11-23 07:35:26,551 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25. Second operand 4 states. Result 62 states and 81 transitions. Complement of second has 6 states. [2018-11-23 07:35:26,551 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 07:35:26,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-23 07:35:26,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-23 07:35:26,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:26,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 07:35:26,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:26,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-23 07:35:26,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:26,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2018-11-23 07:35:26,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 07:35:26,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 54 states and 71 transitions. [2018-11-23 07:35:26,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-23 07:35:26,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-23 07:35:26,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 71 transitions. [2018-11-23 07:35:26,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 07:35:26,554 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2018-11-23 07:35:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 71 transitions. [2018-11-23 07:35:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-23 07:35:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-23 07:35:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2018-11-23 07:35:26,556 INFO L728 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-11-23 07:35:26,556 INFO L608 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-11-23 07:35:26,556 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-23 07:35:26,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 69 transitions. [2018-11-23 07:35:26,557 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 07:35:26,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:26,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:26,557 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:35:26,557 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 07:35:26,558 INFO L794 eck$LassoCheckResult]: Stem: 1130#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1131#L32 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; 1132#L12 assume !!(f_~k~0 <= 1073741823); 1136#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1139#L15-1 assume !(f_~z~0 < f_~k~0); 1137#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1138#L3 assume !(0 == __VERIFIER_assert_~cond); 1115#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1116#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1155#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1154#L20 assume 0 != f_~c~0 % 256; 1147#L21 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; 1144#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1140#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1142#L20-2 [2018-11-23 07:35:26,558 INFO L796 eck$LassoCheckResult]: Loop: 1142#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1143#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1142#L20-2 [2018-11-23 07:35:26,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:26,558 INFO L82 PathProgramCache]: Analyzing trace with hash 277368448, now seen corresponding path program 3 times [2018-11-23 07:35:26,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:26,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:26,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:26,559 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:26,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:26,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:26,567 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 4 times [2018-11-23 07:35:26,567 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:26,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:26,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:26,567 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:26,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:26,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:26,570 INFO L82 PathProgramCache]: Analyzing trace with hash 263107463, now seen corresponding path program 4 times [2018-11-23 07:35:26,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:26,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:26,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:26,571 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:26,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:26,687 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:26,687 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:26,687 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:26,687 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:26,687 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:26,687 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:26,687 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:26,687 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:26,688 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-23 07:35:26,688 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:26,688 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:26,689 INFO 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 07:35:26,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:26,697 INFO 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 07:35:26,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:26,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:26,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:26,710 INFO 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 07:35:26,711 INFO 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 07:35:26,712 INFO 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 07:35:26,715 INFO 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 07:35:26,716 INFO 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 07:35:26,717 INFO 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 07:35:26,718 INFO 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 07:35:26,827 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:26,827 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:26,831 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:26,832 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:26,840 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:26,840 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:26,855 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:26,855 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:26,857 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:26,857 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:26,871 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:26,871 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:26,886 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:26,886 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:26,888 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:26,888 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:26,905 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:26,905 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:27,253 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 07:35:27,255 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:27,255 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:27,255 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:27,255 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:27,255 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:27,255 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:27,255 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:27,255 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:27,256 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-23 07:35:27,256 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:27,256 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:27,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:27,258 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 07:35:27,260 INFO 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 07:35:27,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:27,268 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 07:35:27,270 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 07:35:27,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:27,274 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 07:35:27,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:27,278 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 07:35:27,279 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 07:35:27,281 INFO 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 07:35:27,282 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 07:35:27,409 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:27,409 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:27,410 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 07:35:27,410 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:27,410 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:27,410 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:27,410 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:27,410 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:27,410 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:27,410 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:27,411 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:27,411 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 07:35:27,411 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:27,411 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:27,411 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:27,411 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:27,412 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:27,412 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:27,413 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:27,414 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 07:35:27,414 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:27,414 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:27,414 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:27,414 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:27,415 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:27,415 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:27,415 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:27,416 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 07:35:27,416 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:27,416 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:27,416 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:27,416 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:27,417 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:27,417 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:27,421 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:27,425 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 07:35:27,425 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-23 07:35:27,425 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:27,426 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:27,426 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:27,426 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 07:35:27,450 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:27,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:27,498 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:27,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:27,518 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 07:35:27,519 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 07:35:27,519 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-23 07:35:27,555 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 60 states and 77 transitions. Complement of second has 6 states. [2018-11-23 07:35:27,556 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 07:35:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:27,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-23 07:35:27,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 07:35:27,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:27,557 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 07:35:27,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:27,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:27,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:27,621 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 07:35:27,622 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 07:35:27,622 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-23 07:35:27,681 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 60 states and 77 transitions. Complement of second has 6 states. [2018-11-23 07:35:27,682 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 07:35:27,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:27,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-23 07:35:27,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 07:35:27,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:27,683 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 07:35:27,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:27,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:27,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:27,731 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 07:35:27,731 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 07:35:27,731 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-23 07:35:27,752 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 63 states and 82 transitions. Complement of second has 5 states. [2018-11-23 07:35:27,753 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 07:35:27,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-23 07:35:27,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 07:35:27,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:27,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 07:35:27,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:27,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-23 07:35:27,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:27,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2018-11-23 07:35:27,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 07:35:27,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 27 states and 35 transitions. [2018-11-23 07:35:27,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-23 07:35:27,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-23 07:35:27,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-11-23 07:35:27,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 07:35:27,755 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-23 07:35:27,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-11-23 07:35:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-23 07:35:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 07:35:27,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2018-11-23 07:35:27,756 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-23 07:35:27,756 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-23 07:35:27,756 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-23 07:35:27,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2018-11-23 07:35:27,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 07:35:27,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 07:35:27,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 07:35:27,757 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:35:27,757 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 07:35:27,757 INFO L794 eck$LassoCheckResult]: Stem: 1543#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1544#L32 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; 1545#L12-1 assume !!(f_~k~0 <= 1073741823); 1546#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1547#L15-4 assume !(f_~z~0 < f_~k~0); 1541#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1542#L3-3 assume !(0 == __VERIFIER_assert_~cond); 1536#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1538#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1558#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1555#L20-3 assume 0 != f_~c~0 % 256; 1556#L21-1 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; 1561#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1559#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1549#L20-5 [2018-11-23 07:35:27,757 INFO L796 eck$LassoCheckResult]: Loop: 1549#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1548#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1549#L20-5 [2018-11-23 07:35:27,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:27,757 INFO L82 PathProgramCache]: Analyzing trace with hash 740112881, now seen corresponding path program 3 times [2018-11-23 07:35:27,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:27,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:27,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:27,758 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:27,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:27,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:27,767 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 3 times [2018-11-23 07:35:27,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:27,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:27,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:27,768 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:27,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:27,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:27,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1716089640, now seen corresponding path program 4 times [2018-11-23 07:35:27,771 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:35:27,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:35:27,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:27,772 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:35:27,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:35:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:35:27,919 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:27,919 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:27,919 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:27,919 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:27,919 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 07:35:27,919 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:27,919 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:27,919 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:27,919 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-23 07:35:27,919 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:27,920 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:27,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:27,924 INFO 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 07:35:27,929 INFO 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 07:35:27,930 INFO 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 07:35:27,932 INFO 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 07:35:27,934 INFO 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 07:35:27,935 INFO 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 07:35:27,936 INFO 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 07:35:27,937 INFO 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 07:35:27,938 INFO 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 07:35:27,942 INFO 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 07:35:27,950 INFO 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 07:35:27,952 INFO 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 07:35:28,062 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:28,062 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,064 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,064 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,067 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,067 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,085 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,094 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,094 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,112 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,112 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,114 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,114 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,131 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,131 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,137 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,137 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,155 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,155 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,173 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,173 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,176 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,176 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,179 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,179 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,196 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,196 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,199 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,199 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,217 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,221 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,221 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,239 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,239 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,241 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,241 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_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,259 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,259 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,262 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 07:35:28,262 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 07:35:28,280 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a739b49e-df0d-4666-ad00-bf3446327853/bin-2019/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,300 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 07:35:28,300 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 07:35:28,911 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 07:35:28,913 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 07:35:28,913 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 07:35:28,913 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 07:35:28,913 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 07:35:28,913 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 07:35:28,913 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 07:35:28,913 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 07:35:28,913 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 07:35:28,913 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-23 07:35:28,913 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 07:35:28,913 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 07:35:28,914 INFO 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 07:35:28,916 INFO 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 07:35:28,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:28,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:28,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 07:35:28,923 INFO 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 07:35:28,925 INFO 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 07:35:28,926 INFO 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 07:35:28,926 INFO 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 07:35:28,927 INFO 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 07:35:28,930 INFO 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 07:35:28,937 INFO 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 07:35:28,939 INFO 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 07:35:29,036 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 07:35:29,036 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 07:35:29,036 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 07:35:29,036 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,037 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,037 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,037 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,037 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:29,037 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:29,039 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,039 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 07:35:29,039 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,039 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,039 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,039 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,040 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:29,040 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:29,042 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,042 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 07:35:29,043 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,043 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:29,043 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,043 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,043 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,043 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:29,043 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:29,044 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,044 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 07:35:29,044 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,044 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:29,044 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,044 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,045 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,045 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:29,045 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:29,045 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,045 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 07:35:29,046 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,046 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,046 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,046 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,046 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:29,047 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:29,047 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,048 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 07:35:29,048 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,048 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,048 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,048 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,049 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:29,049 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:29,050 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,050 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 07:35:29,051 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,051 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:29,051 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,051 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,051 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,051 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:29,051 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:29,052 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,052 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 07:35:29,052 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,052 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:29,052 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,052 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,053 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,053 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:29,053 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:29,053 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,053 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 07:35:29,054 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,054 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 07:35:29,054 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,054 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,054 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,054 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 07:35:29,054 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 07:35:29,055 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,055 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 07:35:29,055 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,055 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,056 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,056 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,056 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:29,056 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:29,057 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 07:35:29,058 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 07:35:29,058 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 07:35:29,058 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 07:35:29,058 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 07:35:29,058 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 07:35:29,059 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 07:35:29,059 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 07:35:29,063 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 07:35:29,067 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 07:35:29,067 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-23 07:35:29,067 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 07:35:29,068 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 07:35:29,068 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 07:35:29,068 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 07:35:29,101 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 07:35:29,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:29,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:29,155 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:29,163 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 07:35:29,163 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 07:35:29,163 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-23 07:35:29,176 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 43 transitions. Complement of second has 6 states. [2018-11-23 07:35:29,176 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 07:35:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:29,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-23 07:35:29,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 07:35:29,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:29,177 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 07:35:29,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:29,192 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:29,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:29,202 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 07:35:29,202 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 07:35:29,202 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-23 07:35:29,217 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 43 transitions. Complement of second has 6 states. [2018-11-23 07:35:29,218 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 07:35:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:29,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-23 07:35:29,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 07:35:29,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:29,218 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 07:35:29,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:35:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:29,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:35:29,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:35:29,255 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 07:35:29,255 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 07:35:29,255 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-23 07:35:29,278 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 38 states and 48 transitions. Complement of second has 5 states. [2018-11-23 07:35:29,278 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 07:35:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 07:35:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-23 07:35:29,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-23 07:35:29,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:29,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-23 07:35:29,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:29,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-23 07:35:29,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 07:35:29,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2018-11-23 07:35:29,280 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 07:35:29,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2018-11-23 07:35:29,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 07:35:29,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 07:35:29,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 07:35:29,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 07:35:29,281 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:35:29,281 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:35:29,281 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:35:29,281 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-23 07:35:29,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:35:29,281 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 07:35:29,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 07:35:29,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 07:35:29 BoogieIcfgContainer [2018-11-23 07:35:29,288 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 07:35:29,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:35:29,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:35:29,289 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:35:29,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:34:54" (3/4) ... [2018-11-23 07:35:29,293 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 07:35:29,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:35:29,294 INFO L168 Benchmark]: Toolchain (without parser) took 34942.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.0 MB). Free memory was 959.2 MB in the beginning and 899.8 MB in the end (delta: 59.5 MB). Peak memory consumption was 274.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:35:29,295 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 07:35:29,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.16 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 07:35:29,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.49 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 07:35:29,296 INFO L168 Benchmark]: Boogie Preprocessor took 13.73 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 07:35:29,297 INFO L168 Benchmark]: RCFGBuilder took 223.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-23 07:35:29,297 INFO L168 Benchmark]: BuchiAutomizer took 34523.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.1 GB in the beginning and 899.8 MB in the end (delta: 216.3 MB). Peak memory consumption was 292.9 MB. Max. memory is 11.5 GB. [2018-11-23 07:35:29,298 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 1.2 GB. Free memory is still 899.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:35:29,300 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 153.16 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 21.49 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 13.73 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 223.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.3 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 34523.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.1 GB in the beginning and 899.8 MB in the end (delta: 216.3 MB). Peak memory consumption was 292.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.65 ms. Allocated memory is still 1.2 GB. Free memory is still 899.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (1 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 -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + -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 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 34.4s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 33.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 20 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 52 states and ocurred in iteration 9. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 247 SDtfs, 348 SDslu, 92 SDs, 0 SdLazy, 166 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital55 mio100 ax100 hnf96 lsp39 ukn100 mio100 lsp100 div361 bol100 ite100 ukn100 eq146 hnf43 smp88 dnf100 smp100 tf102 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 85ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 27.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...