./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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/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 0.1.23-0cd3be1 [2018-11-28 11:40:06,075 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:40:06,076 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:40:06,084 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:40:06,084 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:40:06,085 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:40:06,085 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:40:06,087 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:40:06,088 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:40:06,088 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:40:06,089 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:40:06,089 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:40:06,090 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:40:06,091 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:40:06,091 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:40:06,092 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:40:06,093 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:40:06,094 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:40:06,095 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:40:06,096 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:40:06,097 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:40:06,098 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:40:06,099 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:40:06,099 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:40:06,100 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:40:06,100 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:40:06,101 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:40:06,101 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:40:06,102 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:40:06,103 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:40:06,103 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:40:06,103 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:40:06,103 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:40:06,104 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:40:06,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:40:06,105 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:40:06,105 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 11:40:06,114 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:40:06,115 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:40:06,115 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:40:06,116 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:40:06,116 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:40:06,116 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 11:40:06,116 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 11:40:06,116 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 11:40:06,116 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 11:40:06,116 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 11:40:06,116 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 11:40:06,117 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:40:06,117 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:40:06,117 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:40:06,117 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:40:06,117 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:40:06,117 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:40:06,117 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 11:40:06,117 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 11:40:06,118 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 11:40:06,118 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:40:06,118 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:40:06,118 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 11:40:06,118 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:40:06,118 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 11:40:06,119 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:40:06,119 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:40:06,119 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 11:40:06,119 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:40:06,119 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:40:06,119 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 11:40:06,120 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 11:40:06,120 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 [2018-11-28 11:40:06,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:40:06,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:40:06,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:40:06,154 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:40:06,155 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:40:06,155 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-28 11:40:06,191 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/data/336744026/8020cef1b41148c587d8e6f3dc5e0bec/FLAG8e7835b45 [2018-11-28 11:40:06,619 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:40:06,620 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-28 11:40:06,625 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/data/336744026/8020cef1b41148c587d8e6f3dc5e0bec/FLAG8e7835b45 [2018-11-28 11:40:06,638 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/data/336744026/8020cef1b41148c587d8e6f3dc5e0bec [2018-11-28 11:40:06,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:40:06,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:40:06,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:40:06,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:40:06,647 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:40:06,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bce3877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06, skipping insertion in model container [2018-11-28 11:40:06,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:40:06,672 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:40:06,802 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:40:06,806 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:40:06,820 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:40:06,832 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:40:06,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06 WrapperNode [2018-11-28 11:40:06,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:40:06,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:40:06,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:40:06,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:40:06,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:40:06,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:40:06,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:40:06,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:40:06,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... [2018-11-28 11:40:06,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:40:06,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:40:06,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:40:06,961 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:40:06,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:40:07,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:40:07,127 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:40:07,127 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 11:40:07,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:40:07 BoogieIcfgContainer [2018-11-28 11:40:07,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:40:07,128 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 11:40:07,128 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 11:40:07,130 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 11:40:07,131 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:40:07,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:40:06" (1/3) ... [2018-11-28 11:40:07,131 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3174b154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:40:07, skipping insertion in model container [2018-11-28 11:40:07,132 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:40:07,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:06" (2/3) ... [2018-11-28 11:40:07,132 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3174b154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:40:07, skipping insertion in model container [2018-11-28 11:40:07,132 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:40:07,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:40:07" (3/3) ... [2018-11-28 11:40:07,133 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-11-28 11:40:07,181 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:40:07,182 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 11:40:07,182 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 11:40:07,182 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 11:40:07,182 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:40:07,183 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:40:07,183 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 11:40:07,183 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:40:07,183 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 11:40:07,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-28 11:40:07,215 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-28 11:40:07,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:07,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:07,221 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:40:07,221 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 11:40:07,221 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 11:40:07,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-28 11:40:07,223 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-28 11:40:07,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:07,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:07,223 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:40:07,224 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 11:40:07,231 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 13#L32true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 17#L12true assume !!(f_~k~0 <= 1073741823); 23#L15-1true [2018-11-28 11:40:07,231 INFO L796 eck$LassoCheckResult]: Loop: 23#L15-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 23#L15-1true [2018-11-28 11:40:07,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:07,236 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2018-11-28 11:40:07,238 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:07,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:07,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:07,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:07,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:07,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:07,310 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2018-11-28 11:40:07,310 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:07,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:07,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:07,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:07,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:07,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:07,317 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2018-11-28 11:40:07,317 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:07,317 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:07,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:07,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:07,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:07,390 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:07,391 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:07,391 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:07,391 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:07,391 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:07,391 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:07,391 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:07,391 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:07,392 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-28 11:40:07,392 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:07,392 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:07,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:07,636 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:07,637 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:07,642 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:07,642 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:07,649 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:07,649 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:07,675 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:07,675 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:07,677 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:07,677 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:07,691 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:07,692 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:07,710 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:07,710 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:19,761 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 11:40:19,769 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:19,769 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:19,770 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:19,770 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:19,770 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:19,770 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:19,770 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:19,770 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:19,771 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-28 11:40:19,771 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:19,771 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:19,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:19,896 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:19,899 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:19,900 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:19,902 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:19,902 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:19,902 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:19,902 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:19,903 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:19,904 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:19,904 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:19,907 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:19,907 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:19,907 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:19,907 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:19,908 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:19,908 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:19,908 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:19,908 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:19,909 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:19,909 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:19,910 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:19,910 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:19,910 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:19,910 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:19,910 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:19,911 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:19,911 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:19,911 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:19,912 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:19,912 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:19,913 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:19,913 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:19,913 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:19,913 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:19,917 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:19,917 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:19,980 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:19,997 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-28 11:40:19,997 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:40:19,999 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:20,002 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:20,002 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:20,003 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-11-28 11:40:20,020 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:20,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:20,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:20,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:20,082 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-28 11:40:20,083 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2018-11-28 11:40:20,159 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 69 states and 99 transitions. Complement of second has 7 states. [2018-11-28 11:40:20,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:40:20,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2018-11-28 11:40:20,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 11:40:20,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:20,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 11:40:20,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:20,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 11:40:20,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:20,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 99 transitions. [2018-11-28 11:40:20,170 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-11-28 11:40:20,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 23 states and 31 transitions. [2018-11-28 11:40:20,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-28 11:40:20,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-28 11:40:20,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2018-11-28 11:40:20,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:40:20,176 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2018-11-28 11:40:20,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2018-11-28 11:40:20,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-11-28 11:40:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 11:40:20,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2018-11-28 11:40:20,197 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-28 11:40:20,197 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-28 11:40:20,197 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 11:40:20,197 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2018-11-28 11:40:20,198 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-11-28 11:40:20,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:20,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:20,199 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:40:20,199 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 11:40:20,199 INFO L794 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 147#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 149#L12-1 assume !!(f_~k~0 <= 1073741823); 150#L15-4 [2018-11-28 11:40:20,199 INFO L796 eck$LassoCheckResult]: Loop: 150#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 150#L15-4 [2018-11-28 11:40:20,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:20,200 INFO L82 PathProgramCache]: Analyzing trace with hash 32453, now seen corresponding path program 1 times [2018-11-28 11:40:20,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:20,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:20,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:20,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:20,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:20,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:20,208 INFO L82 PathProgramCache]: Analyzing trace with hash 98, now seen corresponding path program 1 times [2018-11-28 11:40:20,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:20,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:20,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:20,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:20,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:20,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:20,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1006110, now seen corresponding path program 1 times [2018-11-28 11:40:20,214 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:20,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:20,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:20,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:20,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:20,291 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:20,291 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:20,291 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:20,291 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:20,291 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:20,291 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,291 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:20,292 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:20,292 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-28 11:40:20,292 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:20,292 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:20,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:20,400 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:20,400 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,411 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,411 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,413 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,413 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,429 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,429 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,431 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,431 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,447 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,447 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,449 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,449 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,464 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,464 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,466 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,466 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,481 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,482 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,483 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,483 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,499 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,499 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,501 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,502 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,517 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,517 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,519 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,519 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,535 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,535 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,536 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,537 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,552 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,552 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:20,554 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:20,554 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,569 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:20,569 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:20,586 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:20,587 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:32,637 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 11:40:32,644 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:32,644 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:32,644 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:32,644 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:32,644 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:32,644 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:32,644 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:32,644 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:32,644 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-28 11:40:32,644 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:32,645 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:32,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:32,751 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:32,752 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:32,752 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:32,752 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:32,753 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:32,753 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:32,753 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:32,753 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:32,755 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:32,755 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:32,756 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:32,756 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:32,757 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:32,757 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:32,757 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:32,757 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:32,757 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:32,757 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:32,758 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:32,758 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:32,758 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:32,759 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:32,759 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:32,759 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:32,759 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:32,759 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:32,759 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:32,759 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:32,764 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:32,764 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:32,764 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:32,764 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:32,764 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:32,764 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:32,764 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:32,765 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:32,765 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:32,765 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:32,765 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:32,766 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:32,766 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:32,766 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:32,766 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:32,766 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:32,766 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:32,766 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:32,767 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:32,767 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:32,767 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:32,768 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:32,768 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:32,768 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:32,768 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:32,768 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:32,768 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:32,769 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:32,769 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:32,769 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:32,770 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:32,770 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:32,770 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:32,771 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:32,771 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:32,795 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:32,805 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:40:32,805 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:40:32,806 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:32,807 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:32,807 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:32,807 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-11-28 11:40:32,817 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:32,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:32,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:32,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:32,858 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-28 11:40:32,858 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-11-28 11:40:32,896 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 40 transitions. Complement of second has 6 states. [2018-11-28 11:40:32,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:40:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 11:40:32,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 11:40:32,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:32,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 11:40:32,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:32,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 11:40:32,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:32,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 40 transitions. [2018-11-28 11:40:32,899 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-11-28 11:40:32,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 24 states and 33 transitions. [2018-11-28 11:40:32,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-28 11:40:32,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-28 11:40:32,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 33 transitions. [2018-11-28 11:40:32,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:40:32,900 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-11-28 11:40:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 33 transitions. [2018-11-28 11:40:32,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2018-11-28 11:40:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 11:40:32,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2018-11-28 11:40:32,902 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-11-28 11:40:32,902 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-11-28 11:40:32,902 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 11:40:32,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2018-11-28 11:40:32,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:40:32,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:32,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:32,903 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 11:40:32,904 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:40:32,904 INFO L794 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 236#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 237#L12 assume !!(f_~k~0 <= 1073741823); 241#L15-1 assume !(f_~z~0 < f_~k~0); 242#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 243#L3 assume !(0 == __VERIFIER_assert_~cond); 230#L20-2 [2018-11-28 11:40:32,904 INFO L796 eck$LassoCheckResult]: Loop: 230#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 231#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 230#L20-2 [2018-11-28 11:40:32,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:32,904 INFO L82 PathProgramCache]: Analyzing trace with hash 920111122, now seen corresponding path program 1 times [2018-11-28 11:40:32,904 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:32,904 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:32,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:32,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:32,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:32,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:40:32,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:40:32,946 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 11:40:32,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:32,946 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 1 times [2018-11-28 11:40:32,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:32,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:32,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:32,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:32,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:32,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 11:40:32,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:40:32,971 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-28 11:40:32,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:40:32,997 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2018-11-28 11:40:32,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 11:40:32,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2018-11-28 11:40:32,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:40:32,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2018-11-28 11:40:32,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-28 11:40:32,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-28 11:40:32,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-28 11:40:32,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:40:32,999 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 11:40:32,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-28 11:40:33,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 11:40:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 11:40:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-28 11:40:33,000 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 11:40:33,000 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 11:40:33,000 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 11:40:33,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-11-28 11:40:33,001 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:40:33,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:33,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:33,002 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:40:33,002 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:40:33,002 INFO L794 eck$LassoCheckResult]: Stem: 284#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 285#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 286#L12 assume !!(f_~k~0 <= 1073741823); 290#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 293#L15-1 assume !(f_~z~0 < f_~k~0); 291#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 292#L3 assume !(0 == __VERIFIER_assert_~cond); 279#L20-2 [2018-11-28 11:40:33,002 INFO L796 eck$LassoCheckResult]: Loop: 279#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 280#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 279#L20-2 [2018-11-28 11:40:33,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:33,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1541272662, now seen corresponding path program 1 times [2018-11-28 11:40:33,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:33,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:33,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:33,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:33,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 2 times [2018-11-28 11:40:33,011 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:33,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:33,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:33,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:33,015 INFO L82 PathProgramCache]: Analyzing trace with hash 600690225, now seen corresponding path program 1 times [2018-11-28 11:40:33,015 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:33,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:33,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,016 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:33,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,111 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:33,111 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:33,111 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:33,111 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:33,111 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:33,111 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,111 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:33,111 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:33,111 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-28 11:40:33,111 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:33,111 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:33,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,217 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:33,217 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,229 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:33,229 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:33,235 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:33,235 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,250 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:33,250 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,267 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:33,268 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:33,342 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:40:33,343 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:33,344 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:33,344 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:33,344 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:33,344 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:33,344 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,344 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:33,344 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:33,344 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-28 11:40:33,344 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:33,344 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:33,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,451 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:33,451 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:33,451 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:33,452 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:33,452 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:33,452 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:33,452 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:33,453 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:33,453 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:33,459 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:33,460 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:33,460 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:33,460 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:33,460 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:33,460 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:33,462 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:33,462 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:33,468 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:33,472 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:40:33,472 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:40:33,473 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:33,474 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:33,474 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:33,474 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-28 11:40:33,489 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:33,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:33,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:33,536 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:33,544 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:33,544 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-28 11:40:33,568 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 24 states and 31 transitions. Complement of second has 6 states. [2018-11-28 11:40:33,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:33,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 11:40:33,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 11:40:33,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:33,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 11:40:33,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:33,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-28 11:40:33,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:33,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2018-11-28 11:40:33,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:40:33,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 30 transitions. [2018-11-28 11:40:33,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-28 11:40:33,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-28 11:40:33,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2018-11-28 11:40:33,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:40:33,572 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-11-28 11:40:33,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2018-11-28 11:40:33,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-28 11:40:33,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 11:40:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2018-11-28 11:40:33,573 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-11-28 11:40:33,573 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-11-28 11:40:33,573 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 11:40:33,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2018-11-28 11:40:33,574 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:40:33,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:33,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:33,574 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:40:33,575 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:40:33,575 INFO L794 eck$LassoCheckResult]: Stem: 388#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 389#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 391#L12-1 assume !!(f_~k~0 <= 1073741823); 392#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 393#L15-4 assume !(f_~z~0 < f_~k~0); 386#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 387#L3-3 assume !(0 == __VERIFIER_assert_~cond); 377#L20-5 [2018-11-28 11:40:33,575 INFO L796 eck$LassoCheckResult]: Loop: 377#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 378#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 377#L20-5 [2018-11-28 11:40:33,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:33,575 INFO L82 PathProgramCache]: Analyzing trace with hash -91683318, now seen corresponding path program 1 times [2018-11-28 11:40:33,575 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:33,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:33,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:33,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:33,583 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 1 times [2018-11-28 11:40:33,583 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:33,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:33,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:33,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:33,589 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647473, now seen corresponding path program 1 times [2018-11-28 11:40:33,589 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:33,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:33,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:33,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:33,670 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:33,670 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:33,670 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:33,670 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:33,670 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:33,671 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,671 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:33,671 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:33,671 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-28 11:40:33,671 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:33,671 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:33,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,766 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:33,766 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,771 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:33,771 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:33,773 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:33,773 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,789 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:33,789 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:33,793 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:33,794 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,809 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:33,809 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:33,814 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:33,814 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,830 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:33,830 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,847 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:33,847 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:33,902 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:40:33,904 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:33,904 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:33,904 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:33,904 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:33,904 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:33,904 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:33,904 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:33,905 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:33,905 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-28 11:40:33,905 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:33,905 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:33,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:33,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,028 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:34,028 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:34,029 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 [2018-11-28 11:40:34,029 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,029 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:34,030 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,030 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,030 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,030 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:34,030 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:34,030 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,031 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,031 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,031 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,031 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,031 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,036 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:34,037 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:34,038 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,038 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,039 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,039 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,039 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,039 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,042 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:34,042 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:34,044 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,045 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,045 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,045 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:34,045 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,045 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,045 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,046 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:34,046 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:34,046 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,047 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,047 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,047 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:34,047 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,047 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,047 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,048 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:34,048 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:34,049 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,050 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,050 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,050 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:34,050 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,050 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,050 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,051 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:34,051 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:34,051 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,052 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,056 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,056 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,056 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,057 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,057 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:34,058 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:34,062 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,062 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,063 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,063 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:34,063 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,063 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,063 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,063 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:34,063 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:34,064 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,064 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,065 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,065 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:34,065 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,065 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,065 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,065 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:34,065 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:34,066 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:34,066 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:34,066 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:34,067 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:34,067 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:34,067 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:34,070 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:34,070 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:34,081 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:34,084 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:40:34,084 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:40:34,084 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:34,085 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:34,085 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:34,085 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-28 11:40:34,092 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:34,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:34,119 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:34,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:34,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:34,133 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:34,133 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-11-28 11:40:34,163 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 28 states and 37 transitions. Complement of second has 6 states. [2018-11-28 11:40:34,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:34,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:34,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 11:40:34,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 11:40:34,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:34,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 11:40:34,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:34,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-28 11:40:34,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:34,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2018-11-28 11:40:34,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:40:34,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2018-11-28 11:40:34,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-28 11:40:34,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-28 11:40:34,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2018-11-28 11:40:34,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:40:34,166 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-11-28 11:40:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2018-11-28 11:40:34,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-11-28 11:40:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 11:40:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2018-11-28 11:40:34,168 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-11-28 11:40:34,168 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-11-28 11:40:34,168 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 11:40:34,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2018-11-28 11:40:34,169 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:40:34,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:34,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:34,170 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:40:34,170 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:40:34,170 INFO L794 eck$LassoCheckResult]: Stem: 504#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 500#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 501#L12 assume !!(f_~k~0 <= 1073741823); 507#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 511#L15-1 assume !(f_~z~0 < f_~k~0); 508#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 509#L3 assume !(0 == __VERIFIER_assert_~cond); 510#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 495#L20 assume 0 != f_~c~0 % 256; 497#L21 [2018-11-28 11:40:34,170 INFO L796 eck$LassoCheckResult]: Loop: 497#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 492#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 493#L20 assume 0 != f_~c~0 % 256; 497#L21 [2018-11-28 11:40:34,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:34,170 INFO L82 PathProgramCache]: Analyzing trace with hash 600690221, now seen corresponding path program 1 times [2018-11-28 11:40:34,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:34,171 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:34,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:34,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:34,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:34,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:34,179 INFO L82 PathProgramCache]: Analyzing trace with hash 74319, now seen corresponding path program 1 times [2018-11-28 11:40:34,179 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:34,179 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:34,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:34,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:34,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:34,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:34,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304093, now seen corresponding path program 1 times [2018-11-28 11:40:34,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:34,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:34,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:34,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:34,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:34,213 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:34,213 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:34,213 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:34,213 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:34,213 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:34,213 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,213 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:34,213 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:34,213 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Loop [2018-11-28 11:40:34,213 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:34,213 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:34,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,321 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:34,321 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,325 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,325 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,340 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,341 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,346 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,354 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,354 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,370 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,370 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,379 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,380 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,406 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,406 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,423 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:34,423 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,431 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,431 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] [2018-11-28 11:40:34,514 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:34,514 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:34,514 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:34,514 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:34,514 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:34,514 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,515 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:34,515 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:34,515 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-28 11:40:34,515 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:34,515 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:34,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:34,686 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:34,686 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,688 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,688 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,716 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:34,716 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,729 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,729 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,754 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,754 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,762 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,762 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,779 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,779 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,785 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,785 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,800 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,801 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,802 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,802 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,817 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,817 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,819 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,819 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,834 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,834 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,836 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,836 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,850 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,850 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,853 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,853 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,868 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,868 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,870 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,870 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,885 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,885 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:34,887 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:34,887 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,901 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:34,901 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:34,918 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:34,918 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,067 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:40:35,068 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:35,068 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:35,068 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:35,068 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:35,068 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:35,068 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,068 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:35,068 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:35,068 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-28 11:40:35,068 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:35,068 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:35,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,207 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:35,207 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:35,207 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:35,208 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:35,208 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:35,208 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:35,208 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:35,209 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:35,209 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:35,214 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:35,215 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:35,215 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:35,215 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:35,215 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:35,215 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:35,216 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:35,217 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:35,226 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:35,226 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:35,227 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:35,227 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:35,227 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:35,227 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:35,227 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:35,227 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:35,227 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:35,228 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:35,228 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:35,228 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:35,228 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:35,228 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:35,228 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:35,229 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:35,229 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:35,241 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:35,241 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:35,241 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:35,242 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:35,242 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:35,242 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:35,243 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:35,243 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:35,249 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:35,256 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-28 11:40:35,256 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 11:40:35,256 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:35,257 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:35,257 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:35,257 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-28 11:40:35,267 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:35,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:35,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:35,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:35,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:35,312 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-11-28 11:40:35,312 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-28 11:40:35,339 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 36 states and 48 transitions. Complement of second has 7 states. [2018-11-28 11:40:35,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:35,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 11:40:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-11-28 11:40:35,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 11:40:35,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:35,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-28 11:40:35,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:35,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-28 11:40:35,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:35,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2018-11-28 11:40:35,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 11:40:35,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 32 states and 43 transitions. [2018-11-28 11:40:35,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-28 11:40:35,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-28 11:40:35,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2018-11-28 11:40:35,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:40:35,342 INFO L705 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-11-28 11:40:35,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2018-11-28 11:40:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-11-28 11:40:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 11:40:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2018-11-28 11:40:35,344 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-11-28 11:40:35,344 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-11-28 11:40:35,344 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 11:40:35,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2018-11-28 11:40:35,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 11:40:35,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:35,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:35,345 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:40:35,345 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:40:35,345 INFO L794 eck$LassoCheckResult]: Stem: 639#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 640#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 642#L12-1 assume !!(f_~k~0 <= 1073741823); 643#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 644#L15-4 assume !(f_~z~0 < f_~k~0); 635#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 636#L3-3 assume !(0 == __VERIFIER_assert_~cond); 638#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 623#L20-3 assume 0 != f_~c~0 % 256; 624#L21-1 [2018-11-28 11:40:35,345 INFO L796 eck$LassoCheckResult]: Loop: 624#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 619#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 620#L20-3 assume 0 != f_~c~0 % 256; 624#L21-1 [2018-11-28 11:40:35,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:35,345 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647469, now seen corresponding path program 1 times [2018-11-28 11:40:35,345 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:35,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:35,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:35,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:35,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:35,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:35,352 INFO L82 PathProgramCache]: Analyzing trace with hash 122976, now seen corresponding path program 1 times [2018-11-28 11:40:35,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:35,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:35,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:35,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:35,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:35,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:35,356 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800140, now seen corresponding path program 1 times [2018-11-28 11:40:35,356 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:35,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:35,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:35,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:35,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:35,383 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:35,383 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:35,383 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:35,384 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:35,384 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:35,384 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,384 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:35,384 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:35,384 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Loop [2018-11-28 11:40:35,384 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:35,384 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:35,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,524 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:35,524 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,533 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,533 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,551 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:35,551 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,560 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,560 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,575 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,575 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,582 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,582 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,597 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,597 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,612 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,612 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,615 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,615 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,621 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,622 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=247, ULTIMATE.start_f_~y~0=247} Honda state: {ULTIMATE.start_f_#t~nondet4=247, ULTIMATE.start_f_~y~0=247} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-28 11:40:35,714 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:35,714 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:35,714 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:35,714 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:35,715 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:35,715 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,715 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:35,715 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:35,715 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-28 11:40:35,715 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:35,715 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:35,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:35,837 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:35,837 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,838 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,854 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,854 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-128, ULTIMATE.start_f_#t~nondet3=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,870 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,870 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,872 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,872 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,887 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,887 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,892 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,892 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,907 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,907 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,909 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,909 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,924 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,924 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,940 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:35,941 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,953 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,953 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,968 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,968 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,970 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,970 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:35,985 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:35,985 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:35,991 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:35,992 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,007 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:36,007 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:36,009 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:36,009 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,024 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:36,024 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:36,026 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:36,026 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,041 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:36,041 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:36,043 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:36,043 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,058 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:36,058 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,075 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:36,075 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:36,206 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:40:36,207 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:36,207 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:36,207 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:36,207 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:36,207 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:36,207 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,207 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:36,207 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:36,207 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-28 11:40:36,207 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:36,207 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:36,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,334 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:36,334 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:36,335 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,335 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,335 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,335 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,335 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,336 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:36,336 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:36,338 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,338 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,338 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,338 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:36,339 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,339 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,339 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,339 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:36,339 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:36,339 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,340 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,340 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,340 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,340 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,340 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,341 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:36,341 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:36,343 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,343 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,343 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,344 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:36,344 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,344 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,344 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,344 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:36,344 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:36,345 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,345 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,345 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,346 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,346 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,346 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,347 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:36,347 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:36,350 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,350 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,351 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,351 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:36,351 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,351 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,351 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,352 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:36,352 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:36,352 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,352 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,353 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,353 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:36,353 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,353 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,353 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,353 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:36,353 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:36,354 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,354 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,354 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,355 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,355 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,355 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,356 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:36,356 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:36,360 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,360 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,360 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,361 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,361 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,361 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,362 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:36,362 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:36,365 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:36,366 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:36,366 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:36,366 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:36,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:36,367 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:36,367 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:36,367 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:36,372 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:36,376 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:40:36,376 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:40:36,376 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:36,377 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2018-11-28 11:40:36,378 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:36,378 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] [2018-11-28 11:40:36,398 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2018-11-28 11:40:36,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:36,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:36,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:36,455 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-11-28 11:40:36,455 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18 Second operand 5 states. [2018-11-28 11:40:36,490 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 41 states and 55 transitions. Complement of second has 7 states. [2018-11-28 11:40:36,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:36,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 11:40:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-11-28 11:40:36,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 11:40:36,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:36,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-28 11:40:36,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:36,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-28 11:40:36,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:36,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 55 transitions. [2018-11-28 11:40:36,493 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:40:36,494 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 50 transitions. [2018-11-28 11:40:36,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-28 11:40:36,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-28 11:40:36,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2018-11-28 11:40:36,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:40:36,494 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-11-28 11:40:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2018-11-28 11:40:36,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-11-28 11:40:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 11:40:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2018-11-28 11:40:36,497 INFO L728 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-11-28 11:40:36,497 INFO L608 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-11-28 11:40:36,497 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-28 11:40:36,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2018-11-28 11:40:36,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:40:36,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:36,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:36,498 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:40:36,498 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:40:36,498 INFO L794 eck$LassoCheckResult]: Stem: 786#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 787#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 788#L12 assume !!(f_~k~0 <= 1073741823); 793#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 796#L15-1 assume !(f_~z~0 < f_~k~0); 794#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 795#L3 assume !(0 == __VERIFIER_assert_~cond); 772#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 774#L20 assume 0 != f_~c~0 % 256; 784#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 775#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 776#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 778#L20-2 [2018-11-28 11:40:36,498 INFO L796 eck$LassoCheckResult]: Loop: 778#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 777#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 778#L20-2 [2018-11-28 11:40:36,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:36,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304089, now seen corresponding path program 1 times [2018-11-28 11:40:36,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:36,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:36,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:36,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:36,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:36,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:36,509 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 3 times [2018-11-28 11:40:36,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:36,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:36,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:36,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:36,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:36,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:36,513 INFO L82 PathProgramCache]: Analyzing trace with hash 167381998, now seen corresponding path program 2 times [2018-11-28 11:40:36,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:36,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:36,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:36,514 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:36,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:36,652 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:36,652 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:36,653 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:36,653 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:36,653 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:36,653 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,653 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:36,653 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:36,653 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-28 11:40:36,653 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:36,653 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:36,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:36,811 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:36,811 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,816 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:36,817 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:36,836 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:36,836 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:37,198 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:40:37,199 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:37,199 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:37,199 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:37,199 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:37,199 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:37,199 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:37,199 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:37,199 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:37,200 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-28 11:40:37,200 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:37,200 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:37,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,316 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:37,316 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:37,316 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:37,317 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:37,317 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:37,317 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:37,317 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:37,317 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:37,318 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:37,319 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:37,320 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:37,320 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:37,320 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:37,320 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:37,320 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:37,321 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:37,321 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:37,326 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:37,330 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:40:37,330 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 11:40:37,330 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:37,331 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:37,331 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:37,331 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-28 11:40:37,341 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:37,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:37,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:37,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:37,374 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:37,374 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21 Second operand 4 states. [2018-11-28 11:40:37,393 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21. Second operand 4 states. Result 54 states and 71 transitions. Complement of second has 6 states. [2018-11-28 11:40:37,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:37,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 11:40:37,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-28 11:40:37,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:37,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 11:40:37,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:37,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-28 11:40:37,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:37,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2018-11-28 11:40:37,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:40:37,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 61 transitions. [2018-11-28 11:40:37,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2018-11-28 11:40:37,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-11-28 11:40:37,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 61 transitions. [2018-11-28 11:40:37,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:40:37,396 INFO L705 BuchiCegarLoop]: Abstraction has 46 states and 61 transitions. [2018-11-28 11:40:37,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 61 transitions. [2018-11-28 11:40:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-11-28 11:40:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 11:40:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2018-11-28 11:40:37,398 INFO L728 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-11-28 11:40:37,398 INFO L608 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-11-28 11:40:37,398 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-28 11:40:37,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 59 transitions. [2018-11-28 11:40:37,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:40:37,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:37,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:37,399 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:40:37,399 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:40:37,399 INFO L794 eck$LassoCheckResult]: Stem: 953#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 954#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 956#L12-1 assume !!(f_~k~0 <= 1073741823); 958#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 959#L15-4 assume !(f_~z~0 < f_~k~0); 948#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 949#L3-3 assume !(0 == __VERIFIER_assert_~cond); 957#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 964#L20-3 assume 0 != f_~c~0 % 256; 945#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 946#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 968#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 930#L20-5 [2018-11-28 11:40:37,400 INFO L796 eck$LassoCheckResult]: Loop: 930#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 931#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 930#L20-5 [2018-11-28 11:40:37,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:37,400 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800136, now seen corresponding path program 1 times [2018-11-28 11:40:37,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:37,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:37,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:37,400 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:37,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:37,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:37,408 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 2 times [2018-11-28 11:40:37,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:37,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:37,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:37,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:40:37,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:37,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:37,411 INFO L82 PathProgramCache]: Analyzing trace with hash 630126431, now seen corresponding path program 2 times [2018-11-28 11:40:37,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:37,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:37,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:37,412 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:37,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:37,510 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:37,511 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:37,511 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:37,511 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:37,511 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:37,511 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:37,511 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:37,511 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:37,511 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-28 11:40:37,511 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:37,511 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:37,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:37,635 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:37,635 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:37,637 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:37,637 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:37,645 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:37,645 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:37,660 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:37,660 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:37,665 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:37,665 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:37,680 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:37,680 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:37,697 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:37,698 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:38,716 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:40:38,717 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:38,717 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:38,718 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:38,718 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:38,718 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:38,718 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:38,718 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:38,718 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:38,718 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-28 11:40:38,718 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:38,718 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:38,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:38,856 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:38,856 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:38,856 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:38,857 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:38,857 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:38,857 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:38,857 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:38,858 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:38,858 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:38,859 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:38,860 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:38,868 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:38,868 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:38,868 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:38,868 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:38,868 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:38,868 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:38,868 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:38,869 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:38,869 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:38,869 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:38,869 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:38,869 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:38,869 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:38,876 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:38,876 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:38,882 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:38,887 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:40:38,888 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-28 11:40:38,888 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:38,889 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:38,889 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:38,889 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-28 11:40:38,897 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:38,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:38,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:38,938 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:38,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:38,953 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:38,953 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25 Second operand 4 states. [2018-11-28 11:40:38,995 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25. Second operand 4 states. Result 62 states and 81 transitions. Complement of second has 6 states. [2018-11-28 11:40:38,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:38,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 11:40:38,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-28 11:40:38,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:38,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 11:40:38,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:38,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-28 11:40:38,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:38,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2018-11-28 11:40:38,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:40:38,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 54 states and 71 transitions. [2018-11-28 11:40:38,998 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-28 11:40:38,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-28 11:40:38,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 71 transitions. [2018-11-28 11:40:38,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:40:38,998 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2018-11-28 11:40:38,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 71 transitions. [2018-11-28 11:40:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-11-28 11:40:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 11:40:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2018-11-28 11:40:39,003 INFO L728 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-11-28 11:40:39,004 INFO L608 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-11-28 11:40:39,004 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-28 11:40:39,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 69 transitions. [2018-11-28 11:40:39,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:40:39,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:39,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:39,005 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:40:39,005 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:40:39,005 INFO L794 eck$LassoCheckResult]: Stem: 1134#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1135#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1136#L12 assume !!(f_~k~0 <= 1073741823); 1140#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1143#L15-1 assume !(f_~z~0 < f_~k~0); 1141#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1142#L3 assume !(0 == __VERIFIER_assert_~cond); 1119#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1120#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1159#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1158#L20 assume 0 != f_~c~0 % 256; 1152#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1150#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1146#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1148#L20-2 [2018-11-28 11:40:39,005 INFO L796 eck$LassoCheckResult]: Loop: 1148#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1149#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1148#L20-2 [2018-11-28 11:40:39,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:39,005 INFO L82 PathProgramCache]: Analyzing trace with hash 277368448, now seen corresponding path program 3 times [2018-11-28 11:40:39,005 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:39,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:39,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:39,006 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:39,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:39,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:39,021 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 4 times [2018-11-28 11:40:39,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:39,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:39,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:39,022 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:39,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:39,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:39,029 INFO L82 PathProgramCache]: Analyzing trace with hash 263107463, now seen corresponding path program 4 times [2018-11-28 11:40:39,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:39,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:39,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:39,030 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:39,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:39,167 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:39,167 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:39,167 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:39,167 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:39,167 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:39,167 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:39,167 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:39,167 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:39,167 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-28 11:40:39,167 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:39,167 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:39,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:39,309 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:39,309 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:39,310 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:39,311 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:39,318 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:39,318 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:39,333 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:39,334 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:39,335 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:39,335 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:39,350 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:39,350 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:39,365 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:39,365 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:39,367 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:39,368 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:39,384 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:39,384 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,044 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:40:40,045 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:40,045 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:40,045 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:40,046 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:40,046 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:40,046 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,046 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:40,046 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:40,046 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-28 11:40:40,046 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:40,046 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:40,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,188 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:40,188 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:40,188 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:40,189 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:40,189 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:40,189 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:40,189 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:40,189 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:40,189 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:40,189 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:40,190 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:40,190 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 [2018-11-28 11:40:40,190 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:40,190 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:40,190 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:40,190 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:40,191 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:40,191 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:40,193 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:40,193 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:40,193 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:40,193 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:40,193 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:40,193 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:40,194 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:40,194 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:40,195 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:40,195 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 [2018-11-28 11:40:40,195 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:40,195 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:40,196 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:40,196 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:40,196 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:40,196 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:40,200 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:40,203 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:40:40,203 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:40:40,203 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:40,204 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:40,204 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:40,204 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-28 11:40:40,214 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:40,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:40,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:40,239 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:40,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:40,245 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:40,245 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-28 11:40:40,263 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 60 states and 77 transitions. Complement of second has 6 states. [2018-11-28 11:40:40,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 11:40:40,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 11:40:40,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:40,265 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:40:40,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:40,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:40,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:40,291 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:40,291 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-28 11:40:40,313 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 60 states and 77 transitions. Complement of second has 6 states. [2018-11-28 11:40:40,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:40,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:40,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-28 11:40:40,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 11:40:40,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:40,314 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:40:40,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:40,329 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:40,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:40,340 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:40,340 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-11-28 11:40:40,357 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 63 states and 82 transitions. Complement of second has 5 states. [2018-11-28 11:40:40,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-28 11:40:40,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 11:40:40,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:40,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-28 11:40:40,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:40,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-28 11:40:40,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:40,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2018-11-28 11:40:40,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:40:40,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 27 states and 35 transitions. [2018-11-28 11:40:40,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-28 11:40:40,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-28 11:40:40,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-11-28 11:40:40,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:40:40,360 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-28 11:40:40,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-11-28 11:40:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 11:40:40,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 11:40:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2018-11-28 11:40:40,362 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-28 11:40:40,362 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-28 11:40:40,362 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-28 11:40:40,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2018-11-28 11:40:40,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:40:40,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:40:40,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:40:40,363 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:40:40,363 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:40:40,363 INFO L794 eck$LassoCheckResult]: Stem: 1547#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1548#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1549#L12-1 assume !!(f_~k~0 <= 1073741823); 1550#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1551#L15-4 assume !(f_~z~0 < f_~k~0); 1545#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1546#L3-3 assume !(0 == __VERIFIER_assert_~cond); 1540#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1542#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1562#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1559#L20-3 assume 0 != f_~c~0 % 256; 1560#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1565#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1563#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1553#L20-5 [2018-11-28 11:40:40,363 INFO L796 eck$LassoCheckResult]: Loop: 1553#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1552#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1553#L20-5 [2018-11-28 11:40:40,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:40,363 INFO L82 PathProgramCache]: Analyzing trace with hash 740112881, now seen corresponding path program 3 times [2018-11-28 11:40:40,363 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:40,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:40,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:40,364 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:40,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:40,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:40,373 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 3 times [2018-11-28 11:40:40,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:40,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:40,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:40,374 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:40,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:40,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:40,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1716089640, now seen corresponding path program 4 times [2018-11-28 11:40:40,376 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:40:40,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:40:40,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:40,377 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:40:40,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:40:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:40:40,508 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:40,508 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:40,509 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:40,509 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:40,509 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:40:40,509 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,509 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:40,509 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:40,509 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-28 11:40:40,509 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:40,509 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:40,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:40,684 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:40,684 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,686 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,686 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,688 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,688 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,703 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,703 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,710 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,710 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,725 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,725 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,730 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,730 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,745 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,745 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,747 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,747 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,762 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,762 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,776 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,776 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,779 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,779 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,781 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,781 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,796 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,796 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,798 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,798 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,813 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,813 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,815 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,815 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,831 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,831 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,833 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,833 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,848 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,848 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:40,850 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:40:40,851 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_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,866 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:40:40,866 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a614bd1e-a256-4683-8c46-c91dcec4a0ef/bin-2019/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:40,883 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:40:40,883 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:40:41,459 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:40:41,461 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:40:41,461 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:40:41,461 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:40:41,461 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:40:41,461 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:40:41,461 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:40:41,461 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:40:41,461 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:40:41,461 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-28 11:40:41,461 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:40:41,461 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:40:41,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:40:41,587 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:40:41,587 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:40:41,588 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,588 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,588 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,588 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,588 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,589 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:41,589 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:41,590 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,590 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,590 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,591 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,591 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,591 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,591 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:41,591 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:41,593 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,593 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,594 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,594 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:41,594 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,594 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,594 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,594 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:41,594 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:41,595 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,595 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,595 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,596 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,596 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,596 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,596 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:41,596 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:41,597 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,597 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,598 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,598 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:41,598 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,598 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,598 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,598 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:41,598 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:41,598 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,599 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,599 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,599 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,599 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,599 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,600 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:41,600 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:41,601 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,601 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,602 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,602 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:41,602 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,602 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,602 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,602 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:41,602 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:41,603 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,603 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,603 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,603 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:41,603 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,603 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,603 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,604 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:41,604 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:41,604 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,604 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,604 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,604 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,604 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,605 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,605 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:41,605 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:41,606 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,607 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,607 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,607 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:40:41,607 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,607 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,607 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,607 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:40:41,608 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:40:41,608 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:40:41,608 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:40:41,608 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:40:41,608 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:40:41,608 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:40:41,608 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:40:41,609 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:40:41,609 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:40:41,613 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:40:41,618 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:40:41,618 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-28 11:40:41,618 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:40:41,619 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:40:41,619 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:40:41,619 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-28 11:40:41,628 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:40:41,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:41,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:41,653 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:41,661 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:41,662 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-28 11:40:41,679 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 43 transitions. Complement of second has 6 states. [2018-11-28 11:40:41,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:41,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-28 11:40:41,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 11:40:41,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:41,680 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:40:41,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:41,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:41,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:41,705 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:41,705 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-28 11:40:41,717 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 43 transitions. Complement of second has 6 states. [2018-11-28 11:40:41,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:41,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-28 11:40:41,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 11:40:41,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:41,718 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:40:41,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:40:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:41,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:40:41,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:40:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:40:41,744 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 11:40:41,744 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-28 11:40:41,758 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 38 states and 48 transitions. Complement of second has 5 states. [2018-11-28 11:40:41,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:40:41,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:40:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-28 11:40:41,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-28 11:40:41,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:41,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-28 11:40:41,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:41,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-28 11:40:41,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:40:41,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2018-11-28 11:40:41,759 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:40:41,759 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2018-11-28 11:40:41,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 11:40:41,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 11:40:41,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 11:40:41,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:40:41,759 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:40:41,759 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:40:41,759 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:40:41,760 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-28 11:40:41,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:40:41,760 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:40:41,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 11:40:41,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:40:41 BoogieIcfgContainer [2018-11-28 11:40:41,764 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 11:40:41,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:40:41,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:40:41,765 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:40:41,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:40:07" (3/4) ... [2018-11-28 11:40:41,767 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:40:41,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:40:41,768 INFO L168 Benchmark]: Toolchain (without parser) took 35126.64 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 368.1 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -59.7 MB). Peak memory consumption was 308.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:40:41,769 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. [2018-11-28 11:40:41,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.58 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. [2018-11-28 11:40:41,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.30 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. [2018-11-28 11:40:41,769 INFO L168 Benchmark]: Boogie Preprocessor took 97.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.8 MB). Free memory was 942.6 MB in the beginning and 1.2 GB in the end (delta: -247.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:40:41,770 INFO L168 Benchmark]: RCFGBuilder took 166.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:40:41,770 INFO L168 Benchmark]: BuchiAutomizer took 34636.37 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.2 MB). Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 159.1 MB). Peak memory consumption was 336.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:40:41,770 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:40:41,771 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 189.58 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 30.30 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 97.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.8 MB). Free memory was 942.6 MB in the beginning and 1.2 GB in the end (delta: -247.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 166.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 34636.37 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.2 MB). Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 159.1 MB). Peak memory consumption was 336.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.99 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (1 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + 1 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 34.5s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 33.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. 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: 90ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 27.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...