./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/trex01_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loops/trex01_false-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.1.24-91b1670 [2018-11-28 23:42:12,734 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:42:12,736 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:42:12,748 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:42:12,748 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:42:12,752 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:42:12,753 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:42:12,756 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:42:12,760 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:42:12,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:42:12,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:42:12,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:42:12,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:42:12,768 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:42:12,773 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:42:12,775 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:42:12,779 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:42:12,782 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:42:12,787 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:42:12,789 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:42:12,790 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:42:12,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:42:12,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:42:12,799 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:42:12,799 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:42:12,800 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:42:12,802 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:42:12,802 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:42:12,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:42:12,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:42:12,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:42:12,810 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:42:12,810 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:42:12,810 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:42:12,812 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:42:12,813 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:42:12,813 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:42:12,845 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:42:12,845 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:42:12,847 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:42:12,849 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:42:12,849 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:42:12,850 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:42:12,850 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:42:12,851 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:42:12,851 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:42:12,851 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:42:12,851 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:42:12,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:42:12,852 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:42:12,852 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:42:12,852 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:42:12,853 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:42:12,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:42:12,853 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:42:12,854 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:42:12,854 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:42:12,854 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:42:12,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:42:12,854 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:42:12,854 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:42:12,857 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:42:12,857 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:42:12,857 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:42:12,858 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:42:12,858 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:42:12,858 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:42:12,859 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:42:12,860 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:42:12,861 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2018-11-28 23:42:12,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:42:12,946 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:42:12,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:42:12,955 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:42:12,958 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:42:12,959 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-28 23:42:13,023 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b123a650/1d23a0da2d1c4bc0ba6c72f5b910f56b/FLAG4a835635a [2018-11-28 23:42:13,455 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:42:13,455 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-28 23:42:13,462 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b123a650/1d23a0da2d1c4bc0ba6c72f5b910f56b/FLAG4a835635a [2018-11-28 23:42:13,833 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b123a650/1d23a0da2d1c4bc0ba6c72f5b910f56b [2018-11-28 23:42:13,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:42:13,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:42:13,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:42:13,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:42:13,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:42:13,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:13" (1/1) ... [2018-11-28 23:42:13,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd00ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:13, skipping insertion in model container [2018-11-28 23:42:13,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:13" (1/1) ... [2018-11-28 23:42:13,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:42:13,881 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:42:14,084 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:42:14,089 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:42:14,114 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:42:14,131 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:42:14,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14 WrapperNode [2018-11-28 23:42:14,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:42:14,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:42:14,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:42:14,133 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:42:14,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:42:14,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:42:14,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:42:14,177 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:42:14,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... [2018-11-28 23:42:14,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:42:14,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:42:14,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:42:14,220 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:42:14,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:42:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:42:14,832 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:42:14,833 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 23:42:14,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:14 BoogieIcfgContainer [2018-11-28 23:42:14,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:42:14,834 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:42:14,834 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:42:14,838 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:42:14,839 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:42:14,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:42:13" (1/3) ... [2018-11-28 23:42:14,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1abb8739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:42:14, skipping insertion in model container [2018-11-28 23:42:14,841 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:42:14,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:14" (2/3) ... [2018-11-28 23:42:14,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1abb8739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:42:14, skipping insertion in model container [2018-11-28 23:42:14,841 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:42:14,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:14" (3/3) ... [2018-11-28 23:42:14,844 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-11-28 23:42:14,902 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:42:14,903 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:42:14,903 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:42:14,904 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:42:14,904 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:42:14,904 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:42:14,904 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:42:14,904 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:42:14,905 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:42:14,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-28 23:42:14,952 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-28 23:42:14,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:14,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:14,961 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:42:14,962 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:42:14,962 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:42:14,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-28 23:42:14,965 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-28 23:42:14,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:14,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:14,966 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:42:14,966 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:42:14,974 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 13#L32true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 17#L12true assume !!(f_~k~0 <= 1073741823); 23#L15-1true [2018-11-28 23:42:14,974 INFO L796 eck$LassoCheckResult]: Loop: 23#L15-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 23#L15-1true [2018-11-28 23:42:14,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:14,980 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2018-11-28 23:42:14,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:14,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:15,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:15,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:15,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:15,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:15,104 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2018-11-28 23:42:15,104 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:15,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:15,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:15,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:15,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:15,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:15,114 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2018-11-28 23:42:15,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:15,115 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:15,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:15,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:15,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:15,263 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:15,264 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:15,264 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:15,264 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:15,264 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:15,264 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:15,265 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:15,265 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:15,265 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-28 23:42:15,265 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:15,265 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:15,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:15,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:16,025 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:16,026 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:42:16,037 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:16,038 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:16,045 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:16,045 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:16,070 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:16,071 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:16,074 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:16,075 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:16,109 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:16,109 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:16,136 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:16,136 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:28,220 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 23:42:28,225 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:28,226 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:28,226 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:28,226 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:28,226 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:28,226 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:28,226 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:28,226 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:28,226 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-28 23:42:28,227 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:28,227 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:28,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:28,812 WARN L180 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-11-28 23:42:29,073 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 23:42:29,261 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:29,267 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:29,269 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:29,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:29,271 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:29,272 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:29,272 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:29,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:29,274 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:29,275 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:29,278 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:29,279 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:29,279 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:29,280 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:29,280 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:29,280 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:29,280 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:29,281 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:29,281 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:29,282 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:29,282 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:29,283 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:29,284 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:29,284 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:29,284 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:29,284 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:29,286 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:29,286 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:29,287 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:29,288 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:29,289 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:29,289 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:29,289 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:29,290 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:29,296 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:29,297 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:29,405 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:29,436 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-28 23:42:29,437 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:42:29,440 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:29,444 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:42:29,445 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:29,445 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] [2018-11-28 23:42:29,469 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:42:29,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:29,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:29,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:29,806 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 [2018-11-28 23:42:29,807 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2018-11-28 23:42:29,968 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. [2018-11-28 23:42:29,971 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 [2018-11-28 23:42:29,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:42:29,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2018-11-28 23:42:29,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 23:42:29,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:29,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 23:42:29,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:29,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:42:29,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:29,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 99 transitions. [2018-11-28 23:42:29,985 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-11-28 23:42:29,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 23 states and 31 transitions. [2018-11-28 23:42:29,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-28 23:42:29,991 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-28 23:42:29,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2018-11-28 23:42:29,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:42:29,992 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2018-11-28 23:42:30,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2018-11-28 23:42:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-11-28 23:42:30,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 23:42:30,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2018-11-28 23:42:30,021 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-28 23:42:30,021 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-28 23:42:30,021 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:42:30,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2018-11-28 23:42:30,022 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-11-28 23:42:30,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:30,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:30,023 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:42:30,023 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:42:30,023 INFO L794 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 147#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 149#L12-1 assume !!(f_~k~0 <= 1073741823); 150#L15-4 [2018-11-28 23:42:30,023 INFO L796 eck$LassoCheckResult]: Loop: 150#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 150#L15-4 [2018-11-28 23:42:30,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:30,024 INFO L82 PathProgramCache]: Analyzing trace with hash 32453, now seen corresponding path program 1 times [2018-11-28 23:42:30,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:30,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:30,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:30,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:30,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:30,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:30,039 INFO L82 PathProgramCache]: Analyzing trace with hash 98, now seen corresponding path program 1 times [2018-11-28 23:42:30,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:30,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:30,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:30,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:30,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:30,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:30,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1006110, now seen corresponding path program 1 times [2018-11-28 23:42:30,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:30,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:30,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:30,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:30,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:30,247 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:30,247 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:30,247 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:30,248 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:30,248 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:30,248 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,248 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:30,248 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:30,249 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-28 23:42:30,249 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:30,249 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:30,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:30,599 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:30,600 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,607 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,611 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,611 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,634 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,634 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,637 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,638 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,658 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,658 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,664 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,665 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,687 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,687 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,690 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,690 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,712 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,712 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,714 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,714 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,734 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,734 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,741 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,741 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,762 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,762 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,764 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,765 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,787 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,787 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,789 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,790 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,811 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:30,813 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:30,814 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:30,835 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:30,872 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:30,872 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:42,948 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 23:42:42,953 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:42,954 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:42,954 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:42,954 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:42,954 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:42,954 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:42,954 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:42,954 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:42,954 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-28 23:42:42,955 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:42,955 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:42,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:42,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:42,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:42,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:42,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:42,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:42,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,156 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:43,156 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:43,157 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:43,157 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:43,158 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:43,158 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:43,158 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:43,158 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:43,158 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:43,158 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:43,166 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:43,167 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:43,168 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:43,168 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:43,168 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:43,168 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:43,168 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:43,169 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:43,169 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:43,169 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:43,175 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:43,176 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:43,176 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:43,176 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:43,176 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:43,177 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:43,177 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:43,177 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:43,181 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:43,182 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:43,183 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:43,183 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:43,184 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:43,184 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:43,184 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:43,184 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:43,184 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:43,185 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:43,185 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:43,186 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:43,186 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:43,186 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:43,186 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:43,186 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:43,187 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:43,187 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:43,187 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:43,188 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:43,188 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:43,188 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:43,188 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:43,188 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:43,188 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:43,191 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:43,191 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:43,192 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:43,193 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:43,193 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:43,193 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:43,193 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:43,197 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:43,199 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:43,199 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:43,239 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:43,257 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:42:43,257 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:42:43,258 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:43,260 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:42:43,260 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:43,260 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] [2018-11-28 23:42:43,284 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:42:43,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:43,351 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:43,355 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:43,355 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 [2018-11-28 23:42:43,356 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-11-28 23:42:43,419 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. [2018-11-28 23:42:43,421 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 [2018-11-28 23:42:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:42:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 23:42:43,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 23:42:43,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:43,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 23:42:43,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:43,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:42:43,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:43,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 40 transitions. [2018-11-28 23:42:43,425 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-11-28 23:42:43,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 24 states and 33 transitions. [2018-11-28 23:42:43,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-28 23:42:43,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-28 23:42:43,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 33 transitions. [2018-11-28 23:42:43,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:42:43,428 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-11-28 23:42:43,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 33 transitions. [2018-11-28 23:42:43,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2018-11-28 23:42:43,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 23:42:43,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2018-11-28 23:42:43,431 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-11-28 23:42:43,431 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-11-28 23:42:43,431 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:42:43,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2018-11-28 23:42:43,432 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:42:43,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:43,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:43,433 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:42:43,433 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:43,433 INFO L794 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 236#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 237#L12 assume !!(f_~k~0 <= 1073741823); 241#L15-1 assume !(f_~z~0 < f_~k~0); 242#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 243#L3 assume !(0 == __VERIFIER_assert_~cond); 230#L20-2 [2018-11-28 23:42:43,433 INFO L796 eck$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 [2018-11-28 23:42:43,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:43,435 INFO L82 PathProgramCache]: Analyzing trace with hash 920111122, now seen corresponding path program 1 times [2018-11-28 23:42:43,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:43,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:43,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:43,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:43,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:42:43,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:42:43,512 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:42:43,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:43,513 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 1 times [2018-11-28 23:42:43,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:43,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:43,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:43,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:43,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:42:43,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:42:43,558 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-28 23:42:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:42:43,640 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2018-11-28 23:42:43,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:42:43,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2018-11-28 23:42:43,642 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:42:43,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2018-11-28 23:42:43,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-28 23:42:43,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-28 23:42:43,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-28 23:42:43,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:42:43,645 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 23:42:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-28 23:42:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 23:42:43,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 23:42:43,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-28 23:42:43,649 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 23:42:43,649 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 23:42:43,649 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:42:43,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-11-28 23:42:43,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:42:43,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:43,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:43,650 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:43,650 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:43,651 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 [2018-11-28 23:42:43,651 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 [2018-11-28 23:42:43,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:43,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1541272662, now seen corresponding path program 1 times [2018-11-28 23:42:43,651 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:43,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:43,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:43,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:43,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:43,664 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 2 times [2018-11-28 23:42:43,664 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:43,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:43,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:43,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:43,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:43,671 INFO L82 PathProgramCache]: Analyzing trace with hash 600690225, now seen corresponding path program 1 times [2018-11-28 23:42:43,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:43,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:43,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,672 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:43,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:43,904 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:43,905 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:43,905 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:43,905 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:43,905 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:43,906 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:43,906 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:43,906 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:43,906 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-28 23:42:43,906 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:43,907 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:43,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:43,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,219 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:44,220 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:44,227 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:44,227 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:44,235 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:44,235 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:44,255 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:44,255 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:44,281 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:44,281 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:44,375 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:44,377 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:44,377 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:44,377 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:44,377 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:44,377 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:44,377 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:44,377 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:44,378 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:44,378 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-28 23:42:44,378 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:44,378 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:44,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:44,614 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:44,614 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:44,615 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:44,615 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:44,616 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:44,616 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:44,616 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:44,620 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:44,620 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:44,625 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:44,625 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:44,626 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:44,626 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:44,626 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:44,626 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:44,628 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:44,628 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:44,640 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:44,647 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:42:44,647 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:42:44,647 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:44,649 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:42:44,649 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:44,649 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] [2018-11-28 23:42:44,676 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:42:44,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:44,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:44,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:44,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:44,835 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 [2018-11-28 23:42:44,835 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-28 23:42:44,891 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. [2018-11-28 23:42:44,892 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 [2018-11-28 23:42:44,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:42:44,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 23:42:44,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:42:44,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:44,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 23:42:44,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:44,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-28 23:42:44,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:44,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2018-11-28 23:42:44,896 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:42:44,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 30 transitions. [2018-11-28 23:42:44,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-28 23:42:44,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-28 23:42:44,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2018-11-28 23:42:44,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:44,898 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-28 23:42:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2018-11-28 23:42:44,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-28 23:42:44,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 23:42:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2018-11-28 23:42:44,901 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-11-28 23:42:44,901 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-11-28 23:42:44,901 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:42:44,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2018-11-28 23:42:44,902 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:42:44,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:44,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:44,902 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:44,903 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:44,903 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 [2018-11-28 23:42:44,903 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 [2018-11-28 23:42:44,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:44,903 INFO L82 PathProgramCache]: Analyzing trace with hash -91683318, now seen corresponding path program 1 times [2018-11-28 23:42:44,904 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:44,904 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:44,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:44,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:44,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:44,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:44,927 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 1 times [2018-11-28 23:42:44,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:44,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:44,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:44,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:44,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:44,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:44,936 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647473, now seen corresponding path program 1 times [2018-11-28 23:42:44,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:44,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:44,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:44,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:44,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:45,194 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:45,194 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:45,194 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:45,195 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:45,195 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:45,195 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:45,195 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:45,195 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:45,195 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-28 23:42:45,196 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:45,196 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:45,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,432 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:45,432 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:45,437 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:45,437 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:45,440 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:45,440 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:45,463 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:45,463 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:45,471 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:45,471 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:45,491 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:45,491 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:45,501 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:45,501 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:45,531 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:45,531 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:42:45,571 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:45,571 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:45,704 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:45,707 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:45,707 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:45,708 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:45,708 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:45,708 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:45,708 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:45,708 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:45,708 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:45,708 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-28 23:42:45,708 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:45,708 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:45,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:45,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:46,213 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 23:42:46,279 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:46,279 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:46,280 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:46,280 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,280 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:46,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,281 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:46,281 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:46,282 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,283 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:46,283 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,283 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,283 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,284 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,285 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:46,285 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:46,288 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,288 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:46,288 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,289 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,289 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,289 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,290 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:46,291 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:46,294 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,295 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:46,295 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,295 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:46,296 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,296 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,296 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,296 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:46,296 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:46,297 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,297 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:46,298 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,298 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:46,298 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,298 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,298 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,299 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:46,299 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:46,301 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,301 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:46,301 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,302 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:46,302 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,302 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,302 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,302 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:46,302 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:46,303 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,303 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:46,304 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,304 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,304 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,304 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,305 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:46,309 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:46,316 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,317 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 [2018-11-28 23:42:46,317 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,317 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:46,318 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,321 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,321 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,321 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:46,322 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:46,322 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,323 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 [2018-11-28 23:42:46,323 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,323 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:46,326 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,327 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,327 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,327 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:46,327 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:46,328 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:46,328 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:46,329 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:46,329 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:46,329 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:46,329 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:46,334 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:46,334 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:46,357 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:46,361 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:42:46,362 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:42:46,362 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:46,365 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:42:46,365 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:46,365 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] [2018-11-28 23:42:46,392 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:42:46,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:46,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:46,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:46,537 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 [2018-11-28 23:42:46,538 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-11-28 23:42:46,607 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. [2018-11-28 23:42:46,608 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 [2018-11-28 23:42:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:42:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 23:42:46,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:42:46,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:46,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 23:42:46,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:46,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-28 23:42:46,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:46,613 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2018-11-28 23:42:46,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:42:46,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2018-11-28 23:42:46,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-28 23:42:46,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-28 23:42:46,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2018-11-28 23:42:46,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:46,615 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-11-28 23:42:46,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2018-11-28 23:42:46,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-11-28 23:42:46,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 23:42:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2018-11-28 23:42:46,620 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-11-28 23:42:46,620 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-11-28 23:42:46,620 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 23:42:46,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2018-11-28 23:42:46,620 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:42:46,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:46,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:46,623 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:46,624 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:42:46,624 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 [2018-11-28 23:42:46,624 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 [2018-11-28 23:42:46,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:46,624 INFO L82 PathProgramCache]: Analyzing trace with hash 600690221, now seen corresponding path program 1 times [2018-11-28 23:42:46,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:46,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:46,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:46,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:46,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:46,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:46,640 INFO L82 PathProgramCache]: Analyzing trace with hash 74319, now seen corresponding path program 1 times [2018-11-28 23:42:46,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:46,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:46,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:46,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:46,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:46,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:46,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304093, now seen corresponding path program 1 times [2018-11-28 23:42:46,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:46,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:46,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:46,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:46,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:46,826 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-28 23:42:46,843 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:46,843 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:46,843 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:46,844 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:46,844 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:46,844 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:46,844 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:46,844 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:46,844 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Loop [2018-11-28 23:42:46,845 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:46,845 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:46,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:46,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:46,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:46,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,132 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:47,133 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:47,137 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:47,138 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:47,158 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:47,158 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:47,162 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:47,163 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:47,174 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:47,175 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:47,196 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:47,196 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:47,211 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:47,211 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:47,235 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:47,235 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:47,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:47,258 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:47,271 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:47,271 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] [2018-11-28 23:42:47,442 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2018-11-28 23:42:47,513 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:47,513 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:47,513 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:47,513 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:47,513 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:47,513 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:47,514 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:47,514 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:47,514 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-28 23:42:47,514 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:47,514 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:47,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:47,910 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 8 [2018-11-28 23:42:48,207 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:48,208 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,213 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,213 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,237 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:48,237 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,254 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,255 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:42:48,292 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,292 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:48,305 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,305 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=-128, ULTIMATE.start_f_~y~0=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,327 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,327 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,337 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,338 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,358 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,358 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,361 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,361 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,382 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,382 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,387 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,387 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,434 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,434 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,437 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,438 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,460 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,467 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,467 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,490 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,490 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,492 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,492 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,516 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,516 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,518 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:48,519 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,539 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:48,539 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:48,564 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:48,564 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:48,730 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:48,732 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:48,732 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:48,732 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:48,732 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:48,732 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:48,733 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:48,733 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:48,733 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:48,733 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-28 23:42:48,733 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:48,733 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:48,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:48,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:49,058 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:49,058 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:49,059 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:49,060 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:49,060 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:49,060 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:49,060 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:49,062 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:49,062 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:49,069 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:49,069 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:49,070 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:49,070 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:49,070 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:49,070 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:49,072 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:49,072 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:49,079 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:49,080 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:49,080 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:49,080 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:49,080 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:49,080 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:49,081 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:49,081 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:49,081 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:49,081 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:49,082 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:49,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:49,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:49,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:49,082 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:49,084 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:49,084 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:49,095 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:49,100 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:49,100 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:49,101 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:49,101 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:49,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:49,102 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:49,102 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:49,117 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:49,144 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-28 23:42:49,145 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 23:42:49,145 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:49,146 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:42:49,146 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:49,146 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] [2018-11-28 23:42:49,174 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:42:49,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:49,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:49,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:49,557 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 [2018-11-28 23:42:49,557 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-28 23:42:49,602 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. [2018-11-28 23:42:49,605 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 [2018-11-28 23:42:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 23:42:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-11-28 23:42:49,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 23:42:49,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:49,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-28 23:42:49,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:49,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-28 23:42:49,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:49,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2018-11-28 23:42:49,610 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 23:42:49,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 32 states and 43 transitions. [2018-11-28 23:42:49,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-28 23:42:49,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-28 23:42:49,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2018-11-28 23:42:49,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:49,612 INFO L705 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-11-28 23:42:49,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2018-11-28 23:42:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-11-28 23:42:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 23:42:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2018-11-28 23:42:49,615 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-11-28 23:42:49,615 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-11-28 23:42:49,615 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 23:42:49,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2018-11-28 23:42:49,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 23:42:49,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:49,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:49,617 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:49,617 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:42:49,617 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 [2018-11-28 23:42:49,617 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 [2018-11-28 23:42:49,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:49,617 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647469, now seen corresponding path program 1 times [2018-11-28 23:42:49,618 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:49,618 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:49,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:49,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:49,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:49,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:49,630 INFO L82 PathProgramCache]: Analyzing trace with hash 122976, now seen corresponding path program 1 times [2018-11-28 23:42:49,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:49,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:49,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:49,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:49,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:49,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:49,635 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800140, now seen corresponding path program 1 times [2018-11-28 23:42:49,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:49,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:49,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:49,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:49,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:49,729 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:49,729 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:49,729 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:49,729 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:49,729 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:49,729 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:49,730 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:49,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:49,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Loop [2018-11-28 23:42:49,730 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:49,730 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:49,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:49,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:49,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:49,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:49,890 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:49,891 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:49,896 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:49,896 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:49,919 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:49,919 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:49,930 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:49,931 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:49,951 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:49,951 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:49,961 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:49,961 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:49,981 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:49,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,004 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,005 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,009 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,009 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,018 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,018 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=247, ULTIMATE.start_f_~y~0=247} Honda state: {ULTIMATE.start_f_#t~nondet4=247, ULTIMATE.start_f_~y~0=247} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-28 23:42:50,172 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:50,172 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:50,172 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:50,172 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:50,172 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:50,172 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:50,172 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:50,172 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:50,173 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-28 23:42:50,173 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:50,173 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:50,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,448 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:50,449 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,452 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,452 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,471 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,471 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,497 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,497 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,501 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,501 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,521 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,522 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,528 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,528 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,550 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,550 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,553 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,553 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,574 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,574 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,598 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:50,599 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,615 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,615 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,636 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,636 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,639 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,639 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,659 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,660 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,669 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,669 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,690 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,693 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,693 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,714 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,714 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,717 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,717 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,739 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,739 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,742 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:50,742 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,763 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:50,763 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:50,788 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:50,788 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:50,956 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:50,958 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:50,958 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:50,958 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:50,958 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:50,959 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:50,959 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:50,959 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:50,959 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:50,959 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-28 23:42:50,959 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:50,959 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:50,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:50,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:51,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:51,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:51,251 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:51,252 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:51,252 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:51,253 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,253 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,253 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,253 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,254 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:51,254 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:51,256 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,256 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:51,257 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,257 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:51,257 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,257 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,257 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,258 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:51,258 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:51,258 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,258 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:51,259 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,259 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,259 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,259 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,260 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:51,260 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:51,263 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,263 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 [2018-11-28 23:42:51,264 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,264 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:51,264 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,264 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,265 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,265 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:51,265 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:51,266 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,266 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:51,266 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,267 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,267 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,267 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,268 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:51,271 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:51,279 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,279 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:51,280 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,280 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:51,280 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,280 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,280 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,285 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:51,285 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:51,285 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,286 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:51,286 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,286 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:51,287 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,287 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,287 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,287 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:51,287 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:51,291 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,291 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:51,292 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,292 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,292 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,292 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,294 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:51,297 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:51,308 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,308 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 [2018-11-28 23:42:51,309 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,309 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,309 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,309 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,310 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:51,314 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:51,322 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:51,326 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 [2018-11-28 23:42:51,326 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:51,326 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:51,327 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:51,327 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:51,328 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:51,328 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:51,342 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:51,360 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:42:51,360 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:42:51,361 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:51,362 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2018-11-28 23:42:51,362 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:51,362 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0, 1*ULTIMATE.start_f_~x~0 >= 0] [2018-11-28 23:42:51,423 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2018-11-28 23:42:51,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:51,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:51,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:51,568 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 [2018-11-28 23:42:51,569 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18 Second operand 5 states. [2018-11-28 23:42:51,640 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. [2018-11-28 23:42:51,641 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 [2018-11-28 23:42:51,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 23:42:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-11-28 23:42:51,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 23:42:51,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:51,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-28 23:42:51,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:51,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-28 23:42:51,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:51,644 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 55 transitions. [2018-11-28 23:42:51,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:42:51,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 50 transitions. [2018-11-28 23:42:51,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-28 23:42:51,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-28 23:42:51,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2018-11-28 23:42:51,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:51,646 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-11-28 23:42:51,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2018-11-28 23:42:51,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-11-28 23:42:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 23:42:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2018-11-28 23:42:51,649 INFO L728 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-11-28 23:42:51,649 INFO L608 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-11-28 23:42:51,649 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-28 23:42:51,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2018-11-28 23:42:51,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:42:51,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:51,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:51,651 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:51,651 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:51,651 INFO L794 eck$LassoCheckResult]: Stem: 786#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 787#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; 788#L12 assume !!(f_~k~0 <= 1073741823); 793#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 796#L15-1 assume !(f_~z~0 < f_~k~0); 794#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; 795#L3 assume !(0 == __VERIFIER_assert_~cond); 772#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 774#L20 assume 0 != f_~c~0 % 256; 784#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; 775#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 776#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 778#L20-2 [2018-11-28 23:42:51,652 INFO L796 eck$LassoCheckResult]: Loop: 778#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 777#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 778#L20-2 [2018-11-28 23:42:51,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:51,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304089, now seen corresponding path program 1 times [2018-11-28 23:42:51,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:51,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:51,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:51,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:51,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:51,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:51,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 3 times [2018-11-28 23:42:51,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:51,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:51,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:51,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:51,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:51,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:51,670 INFO L82 PathProgramCache]: Analyzing trace with hash 167381998, now seen corresponding path program 2 times [2018-11-28 23:42:51,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:51,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:51,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:51,671 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:51,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:51,940 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-11-28 23:42:51,980 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:51,980 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:51,980 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:51,981 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:51,981 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:51,981 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:51,981 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:51,981 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:51,982 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-28 23:42:51,982 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:51,982 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:51,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,329 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:52,329 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:52,337 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:52,337 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:52,363 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:52,364 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:52,822 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:52,824 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:52,824 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:52,825 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:52,825 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:52,825 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:52,825 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:52,825 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:52,825 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:52,825 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-28 23:42:52,825 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:52,825 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:52,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:52,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,139 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:53,140 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:53,140 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:53,141 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:53,141 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:53,141 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:53,141 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:53,142 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:53,142 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:53,144 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:53,145 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:53,145 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:53,145 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:53,145 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:53,145 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:53,146 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:53,146 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:53,153 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:53,158 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:42:53,158 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 23:42:53,159 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:53,159 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:42:53,160 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:53,160 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] [2018-11-28 23:42:53,198 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:42:53,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:53,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:53,261 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:53,272 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 [2018-11-28 23:42:53,272 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21 Second operand 4 states. [2018-11-28 23:42:53,340 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. [2018-11-28 23:42:53,342 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 [2018-11-28 23:42:53,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:42:53,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 23:42:53,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-28 23:42:53,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:53,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 23:42:53,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:53,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-28 23:42:53,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:53,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2018-11-28 23:42:53,348 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:42:53,349 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 61 transitions. [2018-11-28 23:42:53,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2018-11-28 23:42:53,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-28 23:42:53,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 61 transitions. [2018-11-28 23:42:53,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:53,353 INFO L705 BuchiCegarLoop]: Abstraction has 46 states and 61 transitions. [2018-11-28 23:42:53,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 61 transitions. [2018-11-28 23:42:53,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-11-28 23:42:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 23:42:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2018-11-28 23:42:53,357 INFO L728 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-11-28 23:42:53,357 INFO L608 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-11-28 23:42:53,357 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-28 23:42:53,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 59 transitions. [2018-11-28 23:42:53,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:42:53,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:53,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:53,358 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:53,358 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:53,359 INFO L794 eck$LassoCheckResult]: Stem: 953#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 954#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; 956#L12-1 assume !!(f_~k~0 <= 1073741823); 958#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 959#L15-4 assume !(f_~z~0 < f_~k~0); 948#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; 949#L3-3 assume !(0 == __VERIFIER_assert_~cond); 957#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; 945#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; 946#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 968#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 930#L20-5 [2018-11-28 23:42:53,359 INFO L796 eck$LassoCheckResult]: Loop: 930#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 931#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 930#L20-5 [2018-11-28 23:42:53,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:53,359 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800136, now seen corresponding path program 1 times [2018-11-28 23:42:53,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:53,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:53,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:53,360 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:53,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:53,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:53,370 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 2 times [2018-11-28 23:42:53,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:53,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:53,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:53,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:53,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:53,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:53,374 INFO L82 PathProgramCache]: Analyzing trace with hash 630126431, now seen corresponding path program 2 times [2018-11-28 23:42:53,374 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:53,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:53,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:53,375 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:53,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:53,549 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2018-11-28 23:42:53,580 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:53,580 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:53,580 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:53,580 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:53,580 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:53,580 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:53,581 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:53,581 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:53,581 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-28 23:42:53,581 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:53,581 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:53,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:53,890 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:53,890 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:53,894 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:53,894 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:53,906 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:53,906 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=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:53,928 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:53,928 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:53,935 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:53,935 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:53,956 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:53,956 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:53,986 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:53,987 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:55,234 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:55,236 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:55,236 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:55,236 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:55,236 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:55,237 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:55,237 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:55,237 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:55,237 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:55,237 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-28 23:42:55,237 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:55,237 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:55,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:55,671 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:55,672 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:55,673 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:55,673 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:55,673 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:55,676 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:55,676 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:55,677 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:55,677 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:55,679 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:55,680 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:55,681 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:55,681 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:55,681 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:55,681 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:55,682 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:55,682 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:55,682 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:55,682 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:55,683 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:55,683 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:55,683 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:55,683 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:55,684 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:55,685 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:55,685 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:55,693 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:55,709 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:42:55,709 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-28 23:42:55,709 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:55,711 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:42:55,711 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:55,711 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] [2018-11-28 23:42:55,729 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:42:56,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:56,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:56,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:56,509 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 23:42:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:56,510 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 [2018-11-28 23:42:56,510 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25 Second operand 4 states. [2018-11-28 23:42:56,746 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. [2018-11-28 23:42:56,747 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 [2018-11-28 23:42:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:42:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 23:42:56,747 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-28 23:42:56,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:56,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 23:42:56,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:56,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-28 23:42:56,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:56,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2018-11-28 23:42:56,751 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:42:56,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 54 states and 71 transitions. [2018-11-28 23:42:56,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-28 23:42:56,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-28 23:42:56,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 71 transitions. [2018-11-28 23:42:56,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:56,753 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2018-11-28 23:42:56,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 71 transitions. [2018-11-28 23:42:56,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-28 23:42:56,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 23:42:56,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2018-11-28 23:42:56,760 INFO L728 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-11-28 23:42:56,760 INFO L608 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-11-28 23:42:56,760 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-28 23:42:56,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 69 transitions. [2018-11-28 23:42:56,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:42:56,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:56,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:56,762 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:56,762 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:56,762 INFO L794 eck$LassoCheckResult]: Stem: 1134#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1135#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; 1136#L12 assume !!(f_~k~0 <= 1073741823); 1140#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1143#L15-1 assume !(f_~z~0 < f_~k~0); 1141#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; 1142#L3 assume !(0 == __VERIFIER_assert_~cond); 1119#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1120#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1159#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1158#L20 assume 0 != f_~c~0 % 256; 1152#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; 1150#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1146#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1148#L20-2 [2018-11-28 23:42:56,762 INFO L796 eck$LassoCheckResult]: Loop: 1148#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1149#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1148#L20-2 [2018-11-28 23:42:56,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:56,763 INFO L82 PathProgramCache]: Analyzing trace with hash 277368448, now seen corresponding path program 3 times [2018-11-28 23:42:56,763 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:56,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:56,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:56,764 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:56,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:56,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:56,781 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 4 times [2018-11-28 23:42:56,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:56,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:56,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:56,782 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:56,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:56,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:56,791 INFO L82 PathProgramCache]: Analyzing trace with hash 263107463, now seen corresponding path program 4 times [2018-11-28 23:42:56,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:56,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:56,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:56,792 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:56,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:57,084 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2018-11-28 23:42:57,135 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:57,135 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:57,135 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:57,135 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:57,136 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:57,136 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:57,136 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:57,136 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:57,136 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-28 23:42:57,136 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:57,137 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:57,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:57,395 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:57,395 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:57,404 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:57,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:57,415 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:57,415 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=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:57,435 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:57,436 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:57,439 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:57,439 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:57,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:57,460 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:57,479 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:57,479 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:57,484 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:57,484 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:57,509 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:57,509 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:58,346 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:58,348 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:58,348 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:58,348 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:58,348 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:58,348 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:58,349 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:58,349 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:58,349 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:58,349 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-28 23:42:58,349 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:58,349 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:58,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:58,648 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:58,649 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:58,649 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:58,650 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:58,650 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:58,651 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:58,651 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:58,651 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:58,652 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:58,652 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:58,652 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:58,653 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:58,653 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:58,653 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:58,653 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:58,653 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:58,654 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:58,654 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:58,656 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:58,656 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:58,657 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:58,657 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:58,657 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:58,657 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:58,658 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:58,658 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:58,659 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:58,660 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:42:58,660 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:58,660 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:58,660 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:58,660 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:58,661 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:42:58,661 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:42:58,667 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:58,670 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:42:58,670 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:42:58,671 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:58,672 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:42:58,672 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:58,672 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] [2018-11-28 23:42:58,707 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:42:58,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:58,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:58,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:58,763 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 [2018-11-28 23:42:58,763 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-28 23:42:58,819 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. [2018-11-28 23:42:58,822 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 [2018-11-28 23:42:58,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:42:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 23:42:58,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 23:42:58,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:58,824 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:42:58,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:58,906 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:58,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:58,924 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 [2018-11-28 23:42:58,925 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-28 23:42:58,964 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. [2018-11-28 23:42:58,965 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 [2018-11-28 23:42:58,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:42:58,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 23:42:58,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 23:42:58,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:58,967 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:42:58,984 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:59,014 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:59,034 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:42:59,053 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 [2018-11-28 23:42:59,054 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-28 23:42:59,089 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. [2018-11-28 23:42:59,091 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 [2018-11-28 23:42:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:42:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-28 23:42:59,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 23:42:59,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:59,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-28 23:42:59,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:59,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-28 23:42:59,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:59,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2018-11-28 23:42:59,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:42:59,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 27 states and 35 transitions. [2018-11-28 23:42:59,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-28 23:42:59,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-28 23:42:59,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-11-28 23:42:59,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:59,096 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-28 23:42:59,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-11-28 23:42:59,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 23:42:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 23:42:59,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2018-11-28 23:42:59,104 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-28 23:42:59,105 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-28 23:42:59,106 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-28 23:42:59,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2018-11-28 23:42:59,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:42:59,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:59,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:59,107 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:59,107 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:59,107 INFO L794 eck$LassoCheckResult]: Stem: 1547#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1548#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; 1549#L12-1 assume !!(f_~k~0 <= 1073741823); 1550#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1551#L15-4 assume !(f_~z~0 < f_~k~0); 1545#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; 1546#L3-3 assume !(0 == __VERIFIER_assert_~cond); 1540#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1542#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1562#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; 1560#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; 1565#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1563#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1553#L20-5 [2018-11-28 23:42:59,108 INFO L796 eck$LassoCheckResult]: Loop: 1553#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1552#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1553#L20-5 [2018-11-28 23:42:59,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:59,108 INFO L82 PathProgramCache]: Analyzing trace with hash 740112881, now seen corresponding path program 3 times [2018-11-28 23:42:59,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:59,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:59,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:59,109 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:59,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:59,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:59,138 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 3 times [2018-11-28 23:42:59,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:59,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:59,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:59,139 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:59,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:59,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:59,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1716089640, now seen corresponding path program 4 times [2018-11-28 23:42:59,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:59,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:59,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:59,144 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:59,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:59,347 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2018-11-28 23:42:59,401 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:59,401 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:59,401 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:59,402 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:59,402 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:59,402 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:59,402 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:59,402 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:59,402 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-28 23:42:59,403 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:59,403 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:59,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:59,670 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:59,670 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,674 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,677 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,677 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,697 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,698 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,708 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,708 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=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,729 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,729 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,736 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,736 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,759 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,759 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,762 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,762 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,783 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,783 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,804 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,804 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:42:59,808 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,809 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:59,811 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,812 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,832 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,832 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,835 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,835 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,856 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,857 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,860 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,860 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,884 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,884 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,888 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,888 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,909 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,909 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:59,913 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:59,913 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,935 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:59,935 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:42:59,961 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:59,961 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:43:00,676 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:43:00,678 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:43:00,678 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:43:00,678 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:43:00,678 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:43:00,679 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:43:00,679 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:00,679 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:43:00,679 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:43:00,679 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-28 23:43:00,679 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:43:00,679 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:43:00,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:00,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:43:01,092 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:43:01,093 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:43:01,094 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,094 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,094 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,094 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,094 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,098 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:43:01,098 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:43:01,100 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,100 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,101 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,101 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,101 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,102 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:43:01,102 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:43:01,105 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,105 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,105 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,105 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:43:01,107 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,107 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,107 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,108 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:43:01,108 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:43:01,108 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,108 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,112 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,113 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,113 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,113 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,114 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:43:01,114 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:43:01,115 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,116 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,116 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,116 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:43:01,117 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,117 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,117 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,117 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:43:01,117 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:43:01,117 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,118 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,118 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,118 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,119 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,119 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,120 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:43:01,120 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:43:01,125 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,125 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,125 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,126 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:43:01,126 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,126 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,126 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,126 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:43:01,126 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:43:01,127 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,127 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,127 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:43:01,128 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,138 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,138 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,138 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:43:01,138 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:43:01,139 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,139 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,143 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,143 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,143 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,143 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,144 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:43:01,144 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:43:01,147 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,148 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,148 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,148 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:43:01,148 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,148 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,149 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,151 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:43:01,151 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:43:01,152 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:43:01,152 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:43:01,152 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:43:01,153 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:43:01,153 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:43:01,153 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:43:01,159 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:43:01,159 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:43:01,170 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:43:01,183 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:43:01,187 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-28 23:43:01,187 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:43:01,189 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:43:01,189 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:43:01,190 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] [2018-11-28 23:43:01,226 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:43:01,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:43:01,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:43:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:43:01,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:43:01,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:43:01,366 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 [2018-11-28 23:43:01,366 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-28 23:43:01,401 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. [2018-11-28 23:43:01,402 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 [2018-11-28 23:43:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:43:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-28 23:43:01,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 23:43:01,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:43:01,404 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:43:01,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:43:01,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:43:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:43:01,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:43:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:43:01,451 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 [2018-11-28 23:43:01,451 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-28 23:43:01,485 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. [2018-11-28 23:43:01,490 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 [2018-11-28 23:43:01,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:43:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-28 23:43:01,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 23:43:01,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:43:01,491 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:43:01,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:43:01,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:43:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:43:01,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:43:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:43:01,547 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 [2018-11-28 23:43:01,547 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-28 23:43:01,588 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. [2018-11-28 23:43:01,589 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 [2018-11-28 23:43:01,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:43:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-28 23:43:01,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 23:43:01,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:43:01,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-28 23:43:01,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:43:01,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-28 23:43:01,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:43:01,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2018-11-28 23:43:01,593 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:43:01,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2018-11-28 23:43:01,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:43:01,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:43:01,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:43:01,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:43:01,593 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:43:01,594 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:43:01,594 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:43:01,594 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-28 23:43:01,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:43:01,594 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:43:01,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:43:01,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:43:01 BoogieIcfgContainer [2018-11-28 23:43:01,602 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:43:01,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:43:01,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:43:01,603 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:43:01,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:14" (3/4) ... [2018-11-28 23:43:01,608 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:43:01,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:43:01,609 INFO L168 Benchmark]: Toolchain (without parser) took 47771.38 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 345.0 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -71.2 MB). Peak memory consumption was 273.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:43:01,610 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:43:01,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.86 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:43:01,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.93 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:43:01,611 INFO L168 Benchmark]: Boogie Preprocessor took 42.62 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:43:01,611 INFO L168 Benchmark]: RCFGBuilder took 613.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -190.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:43:01,612 INFO L168 Benchmark]: BuchiAutomizer took 46768.36 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 198.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.4 MB). Peak memory consumption was 301.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:43:01,613 INFO L168 Benchmark]: Witness Printer took 5.24 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:43:01,617 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.86 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 43.93 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.62 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 613.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -190.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46768.36 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 198.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.4 MB). Peak memory consumption was 301.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.24 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 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 46.7s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 42.9s. Construction of modules took 0.3s. Büchi inclusion checks took 3.1s. 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, 365 SDslu, 92 SDs, 0 SdLazy, 164 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 157ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 29.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...