./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 17:13:48,842 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 17:13:48,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 17:13:48,851 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 17:13:48,851 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 17:13:48,851 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 17:13:48,852 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 17:13:48,853 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 17:13:48,853 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 17:13:48,854 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 17:13:48,854 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 17:13:48,854 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 17:13:48,855 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 17:13:48,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 17:13:48,856 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 17:13:48,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 17:13:48,857 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 17:13:48,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 17:13:48,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 17:13:48,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 17:13:48,859 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 17:13:48,860 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 17:13:48,862 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 17:13:48,862 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 17:13:48,862 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 17:13:48,863 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 17:13:48,863 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 17:13:48,864 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 17:13:48,864 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 17:13:48,864 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 17:13:48,865 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 17:13:48,865 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 17:13:48,865 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 17:13:48,865 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 17:13:48,865 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 17:13:48,866 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 17:13:48,866 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 17:13:48,876 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 17:13:48,877 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 17:13:48,877 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 17:13:48,878 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 17:13:48,878 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 17:13:48,878 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 17:13:48,878 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 17:13:48,878 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 17:13:48,878 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 17:13:48,879 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 17:13:48,879 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 17:13:48,879 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 17:13:48,879 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 17:13:48,879 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 17:13:48,879 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 17:13:48,879 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 17:13:48,880 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 17:13:48,880 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 17:13:48,880 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 17:13:48,880 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 17:13:48,880 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 17:13:48,880 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 17:13:48,881 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 17:13:48,881 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 17:13:48,881 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 17:13:48,881 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 17:13:48,881 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 17:13:48,881 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 17:13:48,881 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 17:13:48,882 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 17:13:48,882 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 17:13:48,882 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 17:13:48,882 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 [2018-12-01 17:13:48,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 17:13:48,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 17:13:48,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 17:13:48,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 17:13:48,914 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 17:13:48,914 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-12-01 17:13:48,949 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/data/2640fc758/14644c4944f042da9bc7987cd470dda1/FLAGb539b826b [2018-12-01 17:13:49,267 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 17:13:49,268 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-12-01 17:13:49,272 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/data/2640fc758/14644c4944f042da9bc7987cd470dda1/FLAGb539b826b [2018-12-01 17:13:49,677 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/data/2640fc758/14644c4944f042da9bc7987cd470dda1 [2018-12-01 17:13:49,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 17:13:49,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 17:13:49,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 17:13:49,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 17:13:49,683 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 17:13:49,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed18be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49, skipping insertion in model container [2018-12-01 17:13:49,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 17:13:49,701 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 17:13:49,785 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:13:49,787 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 17:13:49,797 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:13:49,805 INFO L195 MainTranslator]: Completed translation [2018-12-01 17:13:49,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49 WrapperNode [2018-12-01 17:13:49,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 17:13:49,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 17:13:49,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 17:13:49,806 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 17:13:49,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 17:13:49,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 17:13:49,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 17:13:49,824 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 17:13:49,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... [2018-12-01 17:13:49,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 17:13:49,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 17:13:49,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 17:13:49,837 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 17:13:49,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:13:49,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 17:13:49,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 17:13:49,995 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 17:13:49,995 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-01 17:13:49,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:13:49 BoogieIcfgContainer [2018-12-01 17:13:49,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 17:13:49,996 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 17:13:49,996 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 17:13:49,998 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 17:13:49,999 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 17:13:49,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 05:13:49" (1/3) ... [2018-12-01 17:13:50,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a411d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 05:13:49, skipping insertion in model container [2018-12-01 17:13:50,000 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 17:13:50,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:13:49" (2/3) ... [2018-12-01 17:13:50,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a411d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 05:13:50, skipping insertion in model container [2018-12-01 17:13:50,000 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 17:13:50,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:13:49" (3/3) ... [2018-12-01 17:13:50,002 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-12-01 17:13:50,041 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 17:13:50,042 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 17:13:50,042 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 17:13:50,042 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 17:13:50,042 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 17:13:50,042 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 17:13:50,042 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 17:13:50,042 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 17:13:50,042 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 17:13:50,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-12-01 17:13:50,062 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-12-01 17:13:50,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:13:50,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:13:50,067 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 17:13:50,067 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 17:13:50,067 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 17:13:50,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-12-01 17:13:50,068 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-12-01 17:13:50,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:13:50,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:13:50,068 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 17:13:50,068 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 17:13:50,073 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 13#L32true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 17#L12true assume !!(f_~k~0 <= 1073741823); 23#L15-1true [2018-12-01 17:13:50,073 INFO L796 eck$LassoCheckResult]: Loop: 23#L15-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 23#L15-1true [2018-12-01 17:13:50,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:13:50,078 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2018-12-01 17:13:50,079 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:13:50,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:13:50,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:13:50,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:13:50,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:13:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:13:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:13:50,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:13:50,139 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2018-12-01 17:13:50,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:13:50,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:13:50,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:13:50,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:13:50,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:13:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:13:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:13:50,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:13:50,143 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2018-12-01 17:13:50,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:13:50,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:13:50,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:13:50,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:13:50,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:13:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:13:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:13:50,201 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:13:50,201 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:13:50,202 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:13:50,202 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:13:50,202 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:13:50,202 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:13:50,202 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:13:50,202 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:13:50,202 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-12-01 17:13:50,202 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:13:50,203 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:13:50,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:13:50,331 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:13:50,332 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:13:50,336 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:13:50,336 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:13:50,348 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:13:50,348 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:13:50,364 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:13:50,364 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:13:50,366 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:13:50,366 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:13:50,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:13:50,381 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:13:50,407 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:13:50,407 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:03,853 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-01 17:14:03,858 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:03,859 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:03,859 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:03,859 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:03,859 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:03,859 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:03,859 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:03,859 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:03,859 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-12-01 17:14:03,859 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:03,859 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:03,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:03,953 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:03,957 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:03,958 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:03,959 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:03,959 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:03,959 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:03,959 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:03,959 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:03,960 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:03,961 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:03,963 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:03,963 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:03,963 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:03,964 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:03,964 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:03,964 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:03,964 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:03,964 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:03,964 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:03,965 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:03,965 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:03,965 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:03,965 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:03,966 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:03,966 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:03,966 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:03,966 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:03,966 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:03,967 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:03,967 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:03,967 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:03,967 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:03,967 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:03,968 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:03,970 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:03,970 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:04,005 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:04,016 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-01 17:14:04,016 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 17:14:04,017 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:04,019 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:04,019 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:04,019 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-12-01 17:14:04,021 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:04,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:04,068 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:04,077 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:04,090 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-01 17:14:04,091 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2018-12-01 17:14:04,146 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. [2018-12-01 17:14:04,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:04,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 17:14:04,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2018-12-01 17:14:04,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-01 17:14:04,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:04,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-01 17:14:04,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:04,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-01 17:14:04,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:04,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 99 transitions. [2018-12-01 17:14:04,156 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-12-01 17:14:04,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 23 states and 31 transitions. [2018-12-01 17:14:04,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-12-01 17:14:04,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-12-01 17:14:04,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2018-12-01 17:14:04,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 17:14:04,161 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2018-12-01 17:14:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2018-12-01 17:14:04,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-12-01 17:14:04,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-01 17:14:04,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2018-12-01 17:14:04,182 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-12-01 17:14:04,182 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-12-01 17:14:04,182 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 17:14:04,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2018-12-01 17:14:04,183 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-12-01 17:14:04,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:04,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:04,183 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 17:14:04,183 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 17:14:04,184 INFO L794 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 147#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 149#L12-1 assume !!(f_~k~0 <= 1073741823); 150#L15-4 [2018-12-01 17:14:04,184 INFO L796 eck$LassoCheckResult]: Loop: 150#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 150#L15-4 [2018-12-01 17:14:04,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:04,184 INFO L82 PathProgramCache]: Analyzing trace with hash 32453, now seen corresponding path program 1 times [2018-12-01 17:14:04,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:04,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:04,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:04,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:04,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:04,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:04,189 INFO L82 PathProgramCache]: Analyzing trace with hash 98, now seen corresponding path program 1 times [2018-12-01 17:14:04,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:04,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:04,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:04,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:04,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:04,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:04,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1006110, now seen corresponding path program 1 times [2018-12-01 17:14:04,193 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:04,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:04,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:04,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:04,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:04,234 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:04,234 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:04,234 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:04,234 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:04,234 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:04,235 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,235 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:04,235 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:04,235 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-12-01 17:14:04,235 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:04,235 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:04,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:04,318 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:04,318 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,320 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,320 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,323 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,323 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,338 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,338 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,340 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,340 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,355 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,355 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,356 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,357 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,371 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,371 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,373 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,373 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,388 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,388 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,390 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,390 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,405 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,405 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,408 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,408 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~d=0, ULTIMATE.start_f_#in~d=0} Honda state: {ULTIMATE.start_f_~d=2, ULTIMATE.start_f_#in~d=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,423 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,423 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,425 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,425 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,440 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,440 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,442 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,442 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,456 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,456 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:04,458 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:04,458 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,473 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:04,473 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:04,492 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:04,492 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:17,930 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-01 17:14:17,936 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:17,936 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:17,936 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:17,936 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:17,936 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:17,936 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:17,936 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:17,937 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:17,937 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-12-01 17:14:17,937 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:17,937 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:17,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:17,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,019 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:18,019 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:18,019 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,020 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,020 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:18,020 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,020 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,020 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,020 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:18,020 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:18,021 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:18,021 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,022 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,022 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:18,022 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,022 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,022 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,022 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:18,022 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:18,023 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:18,023 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,023 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:18,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,023 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,023 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,024 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:18,024 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:18,024 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:18,024 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,025 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,025 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:18,025 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,025 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,025 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,025 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:18,025 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:18,026 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:18,026 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,026 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,026 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:18,026 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,026 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,026 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,027 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:18,027 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:18,027 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:18,027 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,028 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,028 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:18,028 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,028 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,028 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,028 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:18,028 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:18,029 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:18,029 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,029 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,029 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,029 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,029 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,039 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:18,039 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:18,066 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:18,078 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 17:14:18,078 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 17:14:18,079 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:18,080 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:18,080 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:18,080 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-12-01 17:14:18,082 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:18,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:18,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:18,117 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:18,117 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-01 17:14:18,117 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-12-01 17:14:18,144 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. [2018-12-01 17:14:18,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 17:14:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-01 17:14:18,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-01 17:14:18,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:18,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-01 17:14:18,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:18,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-01 17:14:18,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:18,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 40 transitions. [2018-12-01 17:14:18,147 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-12-01 17:14:18,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 24 states and 33 transitions. [2018-12-01 17:14:18,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-12-01 17:14:18,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-12-01 17:14:18,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 33 transitions. [2018-12-01 17:14:18,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 17:14:18,148 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-12-01 17:14:18,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 33 transitions. [2018-12-01 17:14:18,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2018-12-01 17:14:18,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-01 17:14:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2018-12-01 17:14:18,149 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-01 17:14:18,149 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-01 17:14:18,149 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 17:14:18,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2018-12-01 17:14:18,150 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 17:14:18,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:18,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:18,150 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 17:14:18,150 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:14:18,150 INFO L794 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 236#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 237#L12 assume !!(f_~k~0 <= 1073741823); 241#L15-1 assume !(f_~z~0 < f_~k~0); 242#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 243#L3 assume !(0 == __VERIFIER_assert_~cond); 230#L20-2 [2018-12-01 17:14:18,150 INFO L796 eck$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 [2018-12-01 17:14:18,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,150 INFO L82 PathProgramCache]: Analyzing trace with hash 920111122, now seen corresponding path program 1 times [2018-12-01 17:14:18,150 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:18,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:18,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:18,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:18,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:18,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 17:14:18,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 17:14:18,182 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-01 17:14:18,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,182 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 1 times [2018-12-01 17:14:18,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:18,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:18,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:18,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 17:14:18,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 17:14:18,201 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-01 17:14:18,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 17:14:18,229 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2018-12-01 17:14:18,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 17:14:18,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2018-12-01 17:14:18,230 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 17:14:18,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2018-12-01 17:14:18,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-12-01 17:14:18,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-12-01 17:14:18,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-12-01 17:14:18,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 17:14:18,231 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-12-01 17:14:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-12-01 17:14:18,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-01 17:14:18,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-01 17:14:18,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-12-01 17:14:18,232 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-12-01 17:14:18,232 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-12-01 17:14:18,232 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 17:14:18,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-12-01 17:14:18,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 17:14:18,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:18,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:18,232 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:14:18,232 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:14:18,232 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 [2018-12-01 17:14:18,233 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 [2018-12-01 17:14:18,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1541272662, now seen corresponding path program 1 times [2018-12-01 17:14:18,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:18,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:18,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:18,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,239 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 2 times [2018-12-01 17:14:18,239 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:18,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:18,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:18,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,242 INFO L82 PathProgramCache]: Analyzing trace with hash 600690225, now seen corresponding path program 1 times [2018-12-01 17:14:18,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:18,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:18,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,243 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:18,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,329 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:18,329 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:18,329 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:18,329 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:18,329 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:18,329 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,329 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:18,329 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:18,329 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-12-01 17:14:18,329 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:18,329 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:18,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,428 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:18,429 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,436 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:18,436 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:18,441 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:18,441 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,456 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:18,456 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,472 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:18,472 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:18,544 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:14:18,546 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:18,546 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:18,546 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:18,546 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:18,546 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:18,546 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,546 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:18,546 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:18,546 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-12-01 17:14:18,546 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:18,546 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:18,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,646 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:18,647 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:18,647 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,647 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,647 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,647 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,647 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,648 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:18,648 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:18,650 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:18,650 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:18,651 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:18,651 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:18,651 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:18,651 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:18,652 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:18,652 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:18,656 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:18,659 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 17:14:18,659 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 17:14:18,659 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:18,660 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:18,660 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:18,660 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-01 17:14:18,661 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:18,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:18,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:18,684 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:18,693 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:18,693 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-12-01 17:14:18,709 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. [2018-12-01 17:14:18,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:18,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-01 17:14:18,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-01 17:14:18,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:18,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-01 17:14:18,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:18,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-12-01 17:14:18,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:18,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2018-12-01 17:14:18,711 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 17:14:18,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 30 transitions. [2018-12-01 17:14:18,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-12-01 17:14:18,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-12-01 17:14:18,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2018-12-01 17:14:18,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:14:18,712 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-12-01 17:14:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2018-12-01 17:14:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-12-01 17:14:18,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-01 17:14:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2018-12-01 17:14:18,714 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-12-01 17:14:18,714 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-12-01 17:14:18,714 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-01 17:14:18,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2018-12-01 17:14:18,714 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 17:14:18,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:18,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:18,715 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:14:18,715 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:14:18,715 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 [2018-12-01 17:14:18,715 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 [2018-12-01 17:14:18,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,716 INFO L82 PathProgramCache]: Analyzing trace with hash -91683318, now seen corresponding path program 1 times [2018-12-01 17:14:18,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:18,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:18,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:18,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,723 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 1 times [2018-12-01 17:14:18,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:18,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:18,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:18,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:18,727 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647473, now seen corresponding path program 1 times [2018-12-01 17:14:18,727 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:18,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:18,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:18,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:18,810 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:18,810 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:18,810 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:18,810 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:18,811 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:18,811 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,811 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:18,811 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:18,811 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-12-01 17:14:18,811 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:18,811 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:18,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:18,896 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:18,896 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,898 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:18,898 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:18,900 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:18,900 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,914 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:18,915 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:18,919 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:18,919 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,934 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:18,934 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:18,939 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:18,939 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-256, ULTIMATE.start_f_~c~0=-256} Honda state: {ULTIMATE.start_f_#t~nondet3=-256, ULTIMATE.start_f_~c~0=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,954 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:18,954 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:18,971 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:18,971 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,025 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:14:19,026 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:19,027 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:19,027 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:19,027 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:19,027 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:19,027 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,027 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:19,027 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:19,027 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-12-01 17:14:19,027 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:19,027 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:19,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,167 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:19,167 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:19,167 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 [2018-12-01 17:14:19,167 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,167 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:19,167 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,168 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,168 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,168 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:19,168 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:19,168 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,168 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:19,168 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,169 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,169 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,169 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,169 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:19,169 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:19,170 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,171 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:19,171 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,171 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,171 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,171 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,172 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:19,172 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:19,173 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,174 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:19,174 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,174 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:19,174 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,174 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,174 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,174 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:19,174 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:19,175 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,175 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 [2018-12-01 17:14:19,175 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,175 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:19,175 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,175 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,176 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,176 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:19,176 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:19,177 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,177 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:19,177 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,177 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:19,177 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,177 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,177 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,177 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:19,177 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:19,178 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,178 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:19,178 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,178 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,178 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,178 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,179 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:19,179 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:19,180 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,181 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:19,181 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,181 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:19,181 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,181 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,181 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,181 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:19,181 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:19,182 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,182 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 [2018-12-01 17:14:19,182 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,182 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:19,182 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,182 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,183 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,183 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:19,183 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:19,183 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:19,184 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:19,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:19,184 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:19,184 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:19,184 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:19,185 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:19,185 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:19,188 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:19,190 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 17:14:19,190 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 17:14:19,190 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:19,191 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:19,191 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:19,191 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-01 17:14:19,193 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:19,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:19,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:19,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:19,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:19,230 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:19,230 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-12-01 17:14:19,251 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. [2018-12-01 17:14:19,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-01 17:14:19,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-01 17:14:19,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:19,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-01 17:14:19,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:19,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-12-01 17:14:19,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:19,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2018-12-01 17:14:19,252 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 17:14:19,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2018-12-01 17:14:19,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-12-01 17:14:19,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-12-01 17:14:19,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2018-12-01 17:14:19,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:14:19,253 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-12-01 17:14:19,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2018-12-01 17:14:19,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-12-01 17:14:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-01 17:14:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2018-12-01 17:14:19,254 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-12-01 17:14:19,254 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-12-01 17:14:19,254 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-01 17:14:19,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2018-12-01 17:14:19,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-01 17:14:19,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:19,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:19,254 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:14:19,254 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 17:14:19,254 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 [2018-12-01 17:14:19,254 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 [2018-12-01 17:14:19,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:19,255 INFO L82 PathProgramCache]: Analyzing trace with hash 600690221, now seen corresponding path program 1 times [2018-12-01 17:14:19,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:19,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:19,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:19,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:19,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:19,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:19,260 INFO L82 PathProgramCache]: Analyzing trace with hash 74319, now seen corresponding path program 1 times [2018-12-01 17:14:19,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:19,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:19,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:19,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:19,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:19,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:19,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304093, now seen corresponding path program 1 times [2018-12-01 17:14:19,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:19,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:19,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:19,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:19,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:19,287 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:19,287 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:19,287 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:19,287 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:19,287 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:19,287 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,287 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:19,287 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:19,287 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Loop [2018-12-01 17:14:19,287 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:19,287 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:19,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,351 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:19,351 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,353 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,353 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,368 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,368 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,371 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,371 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,378 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,378 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Honda state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,393 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,393 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,399 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,399 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-128, ULTIMATE.start_f_~c~0=-128} Honda state: {ULTIMATE.start_f_#t~nondet3=-128, ULTIMATE.start_f_~c~0=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,414 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,415 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,431 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:19,431 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,439 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,439 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] [2018-12-01 17:14:19,519 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:19,519 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:19,519 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:19,519 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:19,519 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:19,519 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,519 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:19,519 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:19,519 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-12-01 17:14:19,520 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:19,520 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:19,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:19,685 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:19,685 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,687 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,687 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,713 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:19,713 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,725 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,725 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-6, ULTIMATE.start_f_~k~0=-1}, {ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=5}, {ULTIMATE.start_f_~z~0=3, ULTIMATE.start_f_~k~0=-4}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,740 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,740 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,746 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,746 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 /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,761 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,761 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,767 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,767 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,782 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,782 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,784 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,784 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,798 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,798 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,800 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,800 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,814 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,814 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,816 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,816 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,830 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,830 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,833 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,833 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=0, ULTIMATE.start___VERIFIER_assert_~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,848 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,848 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,850 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,850 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,864 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,864 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:19,866 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:19,866 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,880 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:19,880 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:19,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:19,897 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,028 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:14:20,029 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:20,029 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:20,030 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:20,030 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:20,030 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:20,030 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,030 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:20,030 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:20,030 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-12-01 17:14:20,030 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:20,030 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:20,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,177 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:20,177 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:20,177 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:20,177 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:20,177 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:20,177 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:20,177 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:20,178 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:20,178 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:20,182 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:20,182 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 [2018-12-01 17:14:20,183 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:20,183 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:20,183 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:20,183 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:20,184 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:20,184 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:20,188 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:20,188 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 [2018-12-01 17:14:20,189 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:20,189 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:20,189 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:20,189 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:20,189 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:20,189 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:20,189 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:20,190 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:20,190 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:20,190 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:20,190 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:20,190 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:20,190 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:20,191 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:20,191 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:20,193 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:20,194 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:20,194 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:20,194 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:20,194 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:20,194 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:20,195 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:20,195 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:20,200 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:20,206 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-12-01 17:14:20,207 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-01 17:14:20,207 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:20,208 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:20,208 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:20,208 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-01 17:14:20,209 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:20,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:20,247 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:20,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:20,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:20,267 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-12-01 17:14:20,267 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-12-01 17:14:20,291 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. [2018-12-01 17:14:20,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-01 17:14:20,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-12-01 17:14:20,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-12-01 17:14:20,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:20,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-12-01 17:14:20,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:20,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-12-01 17:14:20,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:20,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2018-12-01 17:14:20,292 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-01 17:14:20,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 32 states and 43 transitions. [2018-12-01 17:14:20,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-12-01 17:14:20,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-12-01 17:14:20,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2018-12-01 17:14:20,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:14:20,293 INFO L705 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-12-01 17:14:20,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2018-12-01 17:14:20,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-12-01 17:14:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-01 17:14:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2018-12-01 17:14:20,294 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-12-01 17:14:20,294 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-12-01 17:14:20,294 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-01 17:14:20,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2018-12-01 17:14:20,294 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-01 17:14:20,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:20,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:20,295 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:14:20,295 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 17:14:20,295 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 [2018-12-01 17:14:20,295 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 [2018-12-01 17:14:20,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:20,295 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647469, now seen corresponding path program 1 times [2018-12-01 17:14:20,295 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:20,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:20,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:20,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:20,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:20,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:20,301 INFO L82 PathProgramCache]: Analyzing trace with hash 122976, now seen corresponding path program 1 times [2018-12-01 17:14:20,301 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:20,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:20,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:20,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:20,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:20,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:20,305 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800140, now seen corresponding path program 1 times [2018-12-01 17:14:20,305 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:20,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:20,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:20,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:20,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:20,333 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:20,333 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:20,333 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:20,333 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:20,333 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:20,333 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,334 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:20,334 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:20,334 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Loop [2018-12-01 17:14:20,334 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:20,334 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:20,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,393 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:20,393 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,395 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,395 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,410 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:20,410 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,419 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,419 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,434 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,434 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,440 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,440 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-128, ULTIMATE.start_f_~c~0=-128} Honda state: {ULTIMATE.start_f_#t~nondet3=-128, ULTIMATE.start_f_~c~0=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,455 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,455 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,470 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,470 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,473 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,473 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,480 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,480 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: [] [2018-12-01 17:14:20,566 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:20,567 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:20,567 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:20,567 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:20,567 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:20,567 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,567 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:20,567 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:20,567 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-12-01 17:14:20,567 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:20,567 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:20,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:20,686 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:20,686 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,688 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,688 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,698 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,698 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-128, ULTIMATE.start_f_#t~nondet3=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,712 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,712 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,715 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,715 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,729 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,729 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,734 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,734 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,749 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,749 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,750 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,750 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,765 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,765 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,781 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:20,781 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,793 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,793 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~k~0=2, ULTIMATE.start_f_~z~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=-7}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=6}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,808 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,808 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,809 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,809 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,824 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,824 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,830 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,830 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0, ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_~y~0=255, ULTIMATE.start_f_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,845 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,845 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,847 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,847 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,862 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,862 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,864 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,864 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,878 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,878 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:20,880 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:20,880 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,894 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:20,895 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:20,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:20,911 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:21,039 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:14:21,041 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:21,041 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:21,041 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:21,041 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:21,041 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:21,041 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:21,041 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:21,041 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:21,041 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-12-01 17:14:21,041 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:21,041 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:21,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,169 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:21,169 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:21,169 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:21,169 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,170 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,170 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,170 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,170 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:21,170 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:21,171 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,172 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:21,172 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,172 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:21,172 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,172 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,172 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,172 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:21,173 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:21,173 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,173 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:21,173 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,174 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,174 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,174 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,174 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:21,174 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:21,176 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,176 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:21,176 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,176 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:21,177 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,177 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,177 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,177 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:21,177 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:21,177 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,178 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:21,178 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,178 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,178 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,178 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,179 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:21,179 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:21,182 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,182 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 [2018-12-01 17:14:21,183 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,183 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:21,183 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,183 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,183 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,183 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:21,183 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:21,183 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,184 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:21,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,184 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:21,184 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,184 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,184 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,185 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:21,185 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:21,185 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,185 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 [2018-12-01 17:14:21,185 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,185 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,186 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,186 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,186 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:21,187 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:21,190 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,190 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:21,191 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,191 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,191 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,191 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,192 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:21,192 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:21,195 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:21,195 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:21,196 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:21,196 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:21,196 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:21,196 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:21,197 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:21,197 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:21,201 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:21,204 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 17:14:21,204 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 17:14:21,205 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:21,205 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2018-12-01 17:14:21,206 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:21,206 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_~x~0 >= 0, 1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-01 17:14:21,209 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2018-12-01 17:14:21,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:21,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:21,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:21,246 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-12-01 17:14:21,246 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18 Second operand 5 states. [2018-12-01 17:14:21,289 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. [2018-12-01 17:14:21,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-01 17:14:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-12-01 17:14:21,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-12-01 17:14:21,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:21,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-12-01 17:14:21,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:21,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-12-01 17:14:21,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:21,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 55 transitions. [2018-12-01 17:14:21,291 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 17:14:21,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 50 transitions. [2018-12-01 17:14:21,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-12-01 17:14:21,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-12-01 17:14:21,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2018-12-01 17:14:21,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:14:21,291 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-12-01 17:14:21,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2018-12-01 17:14:21,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-12-01 17:14:21,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-01 17:14:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2018-12-01 17:14:21,293 INFO L728 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-12-01 17:14:21,293 INFO L608 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-12-01 17:14:21,293 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-12-01 17:14:21,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2018-12-01 17:14:21,293 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 17:14:21,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:21,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:21,293 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:14:21,293 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:14:21,294 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 [2018-12-01 17:14:21,294 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 [2018-12-01 17:14:21,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:21,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304089, now seen corresponding path program 1 times [2018-12-01 17:14:21,294 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:21,294 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:21,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:21,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:21,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:21,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:21,299 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 3 times [2018-12-01 17:14:21,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:21,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:21,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:21,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:21,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:21,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:21,302 INFO L82 PathProgramCache]: Analyzing trace with hash 167381998, now seen corresponding path program 2 times [2018-12-01 17:14:21,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:21,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:21,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:21,303 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:21,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:21,413 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:21,413 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:21,413 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:21,413 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:21,413 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:21,413 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:21,413 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:21,413 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:21,413 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-12-01 17:14:21,413 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:21,413 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:21,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,538 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:21,539 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:21,540 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:21,540 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:21,558 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:21,558 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:21,895 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:14:21,896 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:21,896 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:21,896 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:21,897 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:21,897 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:21,897 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:21,897 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:21,897 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:21,897 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-12-01 17:14:21,897 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:21,897 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:21,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:21,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,034 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:22,035 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:22,035 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:22,035 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:22,035 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:22,035 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:22,035 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:22,036 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:22,036 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:22,037 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:22,037 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:22,037 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:22,037 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:22,037 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:22,038 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:22,038 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:22,038 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:22,043 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:22,047 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 17:14:22,047 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-01 17:14:22,047 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:22,048 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:22,048 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:22,048 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-01 17:14:22,050 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:22,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:22,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:22,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:22,081 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:22,081 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21 Second operand 4 states. [2018-12-01 17:14:22,101 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. [2018-12-01 17:14:22,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:22,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-01 17:14:22,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-12-01 17:14:22,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:22,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-01 17:14:22,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:22,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-12-01 17:14:22,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:22,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2018-12-01 17:14:22,103 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 17:14:22,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 61 transitions. [2018-12-01 17:14:22,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2018-12-01 17:14:22,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-12-01 17:14:22,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 61 transitions. [2018-12-01 17:14:22,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:14:22,104 INFO L705 BuchiCegarLoop]: Abstraction has 46 states and 61 transitions. [2018-12-01 17:14:22,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 61 transitions. [2018-12-01 17:14:22,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-12-01 17:14:22,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-01 17:14:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2018-12-01 17:14:22,106 INFO L728 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-12-01 17:14:22,106 INFO L608 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-12-01 17:14:22,106 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-12-01 17:14:22,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 59 transitions. [2018-12-01 17:14:22,106 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 17:14:22,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:22,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:22,107 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:14:22,107 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:14:22,107 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 [2018-12-01 17:14:22,107 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 [2018-12-01 17:14:22,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:22,107 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800136, now seen corresponding path program 1 times [2018-12-01 17:14:22,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:22,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:22,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:22,108 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:22,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:22,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:22,115 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 2 times [2018-12-01 17:14:22,116 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:22,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:22,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:22,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 17:14:22,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:22,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:22,119 INFO L82 PathProgramCache]: Analyzing trace with hash 630126431, now seen corresponding path program 2 times [2018-12-01 17:14:22,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:22,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:22,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:22,119 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:22,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:22,210 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:22,210 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:22,210 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:22,210 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:22,210 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:22,210 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:22,210 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:22,211 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:22,211 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-12-01 17:14:22,211 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:22,211 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:22,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:22,332 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:22,332 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:22,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:22,335 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:22,343 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:22,343 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 /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:22,358 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:22,358 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:22,362 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:22,362 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:22,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:22,377 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:22,394 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:22,394 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:23,374 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:14:23,376 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:23,376 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:23,376 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:23,376 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:23,376 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:23,376 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:23,376 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:23,376 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:23,376 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-12-01 17:14:23,376 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:23,376 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:23,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,523 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:23,523 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:23,523 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:23,523 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:23,523 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:23,524 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:23,524 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:23,524 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:23,524 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:23,525 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:23,526 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:23,526 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:23,526 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:23,526 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:23,526 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:23,526 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:23,527 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:23,527 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:23,527 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:23,527 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:23,528 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:23,528 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:23,528 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:23,528 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:23,529 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:23,529 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:23,534 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:23,539 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 17:14:23,539 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-01 17:14:23,539 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:23,540 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:23,540 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:23,540 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-01 17:14:23,542 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:23,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:23,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:23,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:23,577 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:23,577 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25 Second operand 4 states. [2018-12-01 17:14:23,592 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. [2018-12-01 17:14:23,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:23,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-01 17:14:23,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-12-01 17:14:23,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:23,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-01 17:14:23,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:23,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-12-01 17:14:23,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:23,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2018-12-01 17:14:23,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 17:14:23,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 54 states and 71 transitions. [2018-12-01 17:14:23,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-12-01 17:14:23,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-12-01 17:14:23,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 71 transitions. [2018-12-01 17:14:23,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:14:23,595 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2018-12-01 17:14:23,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 71 transitions. [2018-12-01 17:14:23,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-12-01 17:14:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-01 17:14:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2018-12-01 17:14:23,596 INFO L728 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-12-01 17:14:23,596 INFO L608 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-12-01 17:14:23,596 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-12-01 17:14:23,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 69 transitions. [2018-12-01 17:14:23,597 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 17:14:23,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:23,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:23,597 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:14:23,597 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:14:23,597 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 [2018-12-01 17:14:23,597 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 [2018-12-01 17:14:23,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:23,597 INFO L82 PathProgramCache]: Analyzing trace with hash 277368448, now seen corresponding path program 3 times [2018-12-01 17:14:23,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:23,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:23,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:23,598 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:23,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:23,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:23,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 4 times [2018-12-01 17:14:23,603 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:23,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:23,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:23,603 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:23,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:23,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:23,605 INFO L82 PathProgramCache]: Analyzing trace with hash 263107463, now seen corresponding path program 4 times [2018-12-01 17:14:23,605 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:23,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:23,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:23,606 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:23,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:23,708 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:23,708 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:23,708 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:23,708 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:23,708 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:23,708 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:23,708 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:23,708 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:23,708 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-12-01 17:14:23,708 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:23,709 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:23,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:23,816 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:23,816 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:23,818 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:23,818 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:23,826 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:23,826 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 /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:23,841 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:23,841 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:23,842 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:23,842 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:23,857 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:23,857 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:23,871 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:23,871 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:23,874 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:23,874 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:23,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:23,890 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:24,528 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:14:24,530 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:24,530 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:24,530 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:24,530 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:24,530 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:24,530 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:24,530 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:24,530 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:24,530 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-12-01 17:14:24,530 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:24,530 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:24,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,664 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:24,664 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:24,664 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:24,665 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:24,665 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:24,665 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:24,665 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:24,665 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:24,665 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:24,665 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:24,665 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:24,666 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:24,666 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:24,666 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:24,666 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:24,666 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:24,666 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:24,666 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:24,668 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:24,668 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:24,668 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:24,668 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:24,668 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:24,668 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:24,669 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:24,669 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:24,669 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:24,670 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:24,670 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:24,670 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:24,670 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:24,670 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:24,671 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:24,671 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:24,675 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:24,678 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 17:14:24,678 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 17:14:24,679 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:24,679 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:24,680 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:24,680 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-12-01 17:14:24,681 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:24,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:24,700 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:24,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:24,723 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:24,723 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-12-01 17:14:24,740 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. [2018-12-01 17:14:24,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:24,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:24,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-01 17:14:24,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-01 17:14:24,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:24,741 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 17:14:24,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:24,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:24,763 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:24,771 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:24,771 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-12-01 17:14:24,786 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. [2018-12-01 17:14:24,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-01 17:14:24,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-01 17:14:24,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:24,787 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 17:14:24,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:24,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:24,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:24,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:24,813 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:24,813 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-12-01 17:14:24,830 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. [2018-12-01 17:14:24,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-12-01 17:14:24,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-01 17:14:24,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:24,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-01 17:14:24,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:24,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 4 letters. [2018-12-01 17:14:24,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:24,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2018-12-01 17:14:24,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 17:14:24,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 27 states and 35 transitions. [2018-12-01 17:14:24,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-01 17:14:24,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-12-01 17:14:24,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-12-01 17:14:24,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 17:14:24,832 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-12-01 17:14:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-12-01 17:14:24,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-01 17:14:24,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-01 17:14:24,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2018-12-01 17:14:24,833 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-12-01 17:14:24,833 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-12-01 17:14:24,833 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-12-01 17:14:24,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2018-12-01 17:14:24,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 17:14:24,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 17:14:24,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 17:14:24,833 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 17:14:24,834 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 17:14:24,834 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 [2018-12-01 17:14:24,834 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 [2018-12-01 17:14:24,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:24,834 INFO L82 PathProgramCache]: Analyzing trace with hash 740112881, now seen corresponding path program 3 times [2018-12-01 17:14:24,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:24,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:24,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:24,834 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:24,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:24,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:24,839 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 3 times [2018-12-01 17:14:24,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:24,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:24,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:24,840 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:24,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:24,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:24,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1716089640, now seen corresponding path program 4 times [2018-12-01 17:14:24,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 17:14:24,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 17:14:24,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:24,842 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 17:14:24,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 17:14:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 17:14:24,939 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:24,939 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:24,939 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:24,940 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:24,940 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 17:14:24,940 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:24,940 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:24,940 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:24,940 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-12-01 17:14:24,940 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:24,940 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:24,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:24,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,052 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:25,052 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,053 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,053 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,056 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,056 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,073 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,073 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,080 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,080 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 /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,094 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,094 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,099 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,099 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,114 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,114 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,116 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,116 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,130 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,130 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,144 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,144 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,147 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,149 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,149 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,163 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,163 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,164 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,164 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,178 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,178 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,180 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,180 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,194 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,194 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,196 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,196 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,210 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,210 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,212 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 17:14:25,213 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,227 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 17:14:25,227 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_86fe5096-f1d4-4e0a-bd77-b2eda1cc0abe/bin-2019/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,244 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 17:14:25,244 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 17:14:25,797 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 17:14:25,799 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 17:14:25,799 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 17:14:25,799 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 17:14:25,799 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 17:14:25,799 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 17:14:25,799 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 17:14:25,799 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 17:14:25,799 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 17:14:25,799 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-12-01 17:14:25,799 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 17:14:25,799 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 17:14:25,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 17:14:25,920 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 17:14:25,920 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 17:14:25,920 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,920 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,920 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,920 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,920 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,921 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:25,921 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:25,922 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,922 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,922 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,923 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,923 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,923 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,923 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:25,923 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:25,924 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,924 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,925 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,925 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:25,925 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,925 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,925 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,925 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:25,925 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:25,925 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,925 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,926 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,926 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,926 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,926 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,926 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:25,926 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:25,927 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,927 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,927 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,927 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:25,927 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,927 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,927 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,927 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:25,927 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:25,927 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,928 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,928 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,928 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,928 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,928 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,928 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:25,928 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:25,929 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,929 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,929 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,929 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:25,930 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,930 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,930 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,930 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:25,930 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:25,930 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,930 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,930 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,930 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:25,931 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,931 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,931 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,931 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:25,931 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:25,931 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,931 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,931 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,931 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,931 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,931 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,932 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:25,932 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:25,933 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,933 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,933 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,933 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 17:14:25,933 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,933 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,933 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,933 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 17:14:25,933 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 17:14:25,934 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 17:14:25,934 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 17:14:25,934 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 17:14:25,934 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 17:14:25,934 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 17:14:25,934 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 17:14:25,934 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 17:14:25,934 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 17:14:25,937 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 17:14:25,941 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 17:14:25,941 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-01 17:14:25,941 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 17:14:25,942 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 17:14:25,942 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 17:14:25,942 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-12-01 17:14:25,944 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-01 17:14:25,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:25,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:25,968 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:25,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:25,982 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:25,982 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-12-01 17:14:25,999 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. [2018-12-01 17:14:25,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:25,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-12-01 17:14:25,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-01 17:14:25,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:26,000 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 17:14:26,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:26,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:26,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:26,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:26,026 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:26,026 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-12-01 17:14:26,037 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. [2018-12-01 17:14:26,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:26,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-12-01 17:14:26,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-01 17:14:26,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:26,038 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-01 17:14:26,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:14:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:26,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:14:26,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 17:14:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:14:26,065 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 17:14:26,065 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-12-01 17:14:26,080 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. [2018-12-01 17:14:26,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 17:14:26,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 17:14:26,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-12-01 17:14:26,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-01 17:14:26,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:26,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-01 17:14:26,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:26,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2018-12-01 17:14:26,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 17:14:26,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2018-12-01 17:14:26,081 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 17:14:26,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2018-12-01 17:14:26,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 17:14:26,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 17:14:26,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 17:14:26,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 17:14:26,081 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 17:14:26,081 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 17:14:26,081 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 17:14:26,081 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-12-01 17:14:26,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 17:14:26,081 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 17:14:26,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 17:14:26,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 05:14:26 BoogieIcfgContainer [2018-12-01 17:14:26,085 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 17:14:26,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 17:14:26,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 17:14:26,086 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 17:14:26,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:13:49" (3/4) ... [2018-12-01 17:14:26,088 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 17:14:26,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 17:14:26,089 INFO L168 Benchmark]: Toolchain (without parser) took 36409.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 953.3 MB in the beginning and 894.1 MB in the end (delta: 59.2 MB). Peak memory consumption was 261.6 MB. Max. memory is 11.5 GB. [2018-12-01 17:14:26,090 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:14:26,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 124.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 17:14:26,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.66 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:14:26,090 INFO L168 Benchmark]: Boogie Preprocessor took 12.25 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 17:14:26,090 INFO L168 Benchmark]: RCFGBuilder took 159.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -144.1 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-01 17:14:26,091 INFO L168 Benchmark]: BuchiAutomizer took 36089.34 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 96.5 MB). Free memory was 1.1 GB in the beginning and 894.1 MB in the end (delta: 190.0 MB). Peak memory consumption was 286.4 MB. Max. memory is 11.5 GB. [2018-12-01 17:14:26,091 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 1.2 GB. Free memory is still 894.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:14:26,092 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 124.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 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 18.66 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.25 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 159.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -144.1 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36089.34 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 96.5 MB). Free memory was 1.1 GB in the beginning and 894.1 MB in the end (delta: 190.0 MB). Peak memory consumption was 286.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.66 ms. Allocated memory is still 1.2 GB. Free memory is still 894.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (1 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + 1 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 36.0s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 35.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. 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, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital55 mio100 ax100 hnf96 lsp39 ukn100 mio100 lsp100 div361 bol100 ite100 ukn100 eq146 hnf43 smp88 dnf100 smp100 tf102 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 51ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 30.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...