./Ultimate.py --spec ../../sv-benchmarks/c/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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 0.1.23-1dbac8b [2018-10-27 06:08:05,131 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:08:05,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:08:05,141 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:08:05,142 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:08:05,142 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:08:05,144 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:08:05,145 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:08:05,146 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:08:05,147 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:08:05,148 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:08:05,148 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:08:05,149 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:08:05,150 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:08:05,151 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:08:05,152 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:08:05,152 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:08:05,154 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:08:05,155 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:08:05,156 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:08:05,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:08:05,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:08:05,160 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:08:05,160 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:08:05,160 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:08:05,161 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:08:05,162 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:08:05,163 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:08:05,163 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:08:05,165 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:08:05,165 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:08:05,166 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:08:05,166 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:08:05,166 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:08:05,167 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:08:05,168 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:08:05,168 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-10-27 06:08:05,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:08:05,180 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:08:05,181 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:08:05,181 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:08:05,181 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:08:05,181 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:08:05,181 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:08:05,182 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:08:05,182 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:08:05,182 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:08:05,182 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:08:05,182 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:08:05,182 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 06:08:05,182 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:08:05,182 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:08:05,183 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 06:08:05,183 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:08:05,183 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:08:05,183 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:08:05,183 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:08:05,183 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 06:08:05,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:08:05,185 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:08:05,186 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:08:05,186 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:08:05,186 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:08:05,186 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:08:05,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:08:05,186 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:08:05,186 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:08:05,187 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:08:05,187 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:05,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:08:05,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:08:05,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:08:05,229 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:08:05,229 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:08:05,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-10-27 06:08:05,278 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/data/63df12362/600fc520b48642ab8f314c061cb5fba2/FLAGdb8a556f0 [2018-10-27 06:08:05,605 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:08:05,606 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-10-27 06:08:05,612 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/data/63df12362/600fc520b48642ab8f314c061cb5fba2/FLAGdb8a556f0 [2018-10-27 06:08:05,623 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/bin-2019/uautomizer/data/63df12362/600fc520b48642ab8f314c061cb5fba2 [2018-10-27 06:08:05,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:08:05,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:08:05,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:08:05,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:08:05,630 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:08:05,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c17ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05, skipping insertion in model container [2018-10-27 06:08:05,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:08:05,667 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:08:05,785 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:08:05,788 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:08:05,804 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:08:05,817 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:08:05,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05 WrapperNode [2018-10-27 06:08:05,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:08:05,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:08:05,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:08:05,819 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:08:05,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:08:05,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:08:05,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:08:05,855 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:08:05,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... [2018-10-27 06:08:05,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:08:05,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:08:05,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:08:05,883 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:08:05,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:08:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:08:06,433 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:08:06,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:08:06 BoogieIcfgContainer [2018-10-27 06:08:06,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:08:06,434 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:08:06,434 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:08:06,437 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:08:06,437 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:08:06,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:08:05" (1/3) ... [2018-10-27 06:08:06,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ab3ad3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:08:06, skipping insertion in model container [2018-10-27 06:08:06,439 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:08:06,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:05" (2/3) ... [2018-10-27 06:08:06,439 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ab3ad3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:08:06, skipping insertion in model container [2018-10-27 06:08:06,439 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:08:06,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:08:06" (3/3) ... [2018-10-27 06:08:06,441 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-10-27 06:08:06,495 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:08:06,496 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:08:06,496 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:08:06,496 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:08:06,496 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:08:06,496 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:08:06,496 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:08:06,496 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:08:06,497 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:08:06,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2018-10-27 06:08:06,535 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-10-27 06:08:06,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:06,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:06,543 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:08:06,543 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:08:06,544 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:08:06,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2018-10-27 06:08:06,547 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-10-27 06:08:06,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:06,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:06,547 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:08:06,547 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:08:06,556 INFO L793 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 14#L32true assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 18#L12true assume !!(f_~k~0 <= 1073741823); 31#L15-2true [2018-10-27 06:08:06,556 INFO L795 eck$LassoCheckResult]: Loop: 31#L15-2true assume true; 22#L15true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 31#L15-2true [2018-10-27 06:08:06,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:06,563 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2018-10-27 06:08:06,565 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:06,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:06,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:06,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:06,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:06,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:06,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1415, now seen corresponding path program 1 times [2018-10-27 06:08:06,665 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:06,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:06,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:06,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:06,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:06,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:06,674 INFO L82 PathProgramCache]: Analyzing trace with hash 889509742, now seen corresponding path program 1 times [2018-10-27 06:08:06,675 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:06,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:06,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:06,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:06,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:06,888 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:06,889 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:06,889 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:06,889 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:06,889 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:06,889 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:06,889 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:06,889 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:06,890 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-10-27 06:08:06,890 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:06,890 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:06,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:06,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:06,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:06,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:06,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:06,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:06,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:06,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:07,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:07,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:07,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:07,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:07,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:07,490 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:07,491 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:07,498 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:07,498 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:07,503 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:07,503 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:07,523 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:07,524 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:07,528 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:07,528 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:07,557 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:07,557 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:07,582 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:07,582 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:19,633 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:08:19,636 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:19,636 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:19,636 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:19,636 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:19,636 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:19,637 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:19,637 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:19,637 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:19,637 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-10-27 06:08:19,637 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:19,637 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:19,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:19,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,069 WARN L179 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-10-27 06:08:20,216 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-27 06:08:20,465 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:20,468 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:20,469 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:20,470 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:20,470 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:20,471 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:20,471 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:20,472 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:20,473 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:20,473 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:20,476 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:20,477 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:20,477 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:20,477 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:20,477 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:20,477 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:20,477 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:20,478 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:20,478 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:20,479 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:20,479 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:20,479 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:20,480 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:20,480 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:20,480 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:20,480 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:20,480 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:20,480 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:20,481 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:20,482 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:20,482 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:20,482 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:20,482 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:20,482 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:20,483 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:20,483 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:20,483 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:20,485 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:20,486 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:20,486 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:20,486 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:20,486 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:20,487 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:20,491 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:20,491 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:20,539 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:20,571 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-10-27 06:08:20,574 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-10-27 06:08:20,577 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:20,580 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:20,583 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:20,584 INFO L519 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] [2018-10-27 06:08:20,590 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:20,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:20,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:20,664 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:20,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:20,679 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 [2018-10-27 06:08:20,680 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states. Second operand 4 states. [2018-10-27 06:08:20,793 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states.. Second operand 4 states. Result 93 states and 120 transitions. Complement of second has 7 states. [2018-10-27 06:08:20,796 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 [2018-10-27 06:08:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:08:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2018-10-27 06:08:20,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 4 letters. Loop has 2 letters. [2018-10-27 06:08:20,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:20,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 6 letters. Loop has 2 letters. [2018-10-27 06:08:20,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:20,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 4 letters. Loop has 4 letters. [2018-10-27 06:08:20,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:20,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 120 transitions. [2018-10-27 06:08:20,804 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 16 [2018-10-27 06:08:20,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 33 states and 41 transitions. [2018-10-27 06:08:20,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-10-27 06:08:20,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2018-10-27 06:08:20,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 41 transitions. [2018-10-27 06:08:20,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:20,811 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2018-10-27 06:08:20,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 41 transitions. [2018-10-27 06:08:20,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2018-10-27 06:08:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-27 06:08:20,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2018-10-27 06:08:20,830 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2018-10-27 06:08:20,831 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2018-10-27 06:08:20,831 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:08:20,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2018-10-27 06:08:20,832 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-10-27 06:08:20,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:20,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:20,832 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:08:20,832 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:08:20,833 INFO L793 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 194#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 195#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 198#L12-1 assume !!(f_~k~0 <= 1073741823); 191#L15-6 [2018-10-27 06:08:20,833 INFO L795 eck$LassoCheckResult]: Loop: 191#L15-6 assume true; 192#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 191#L15-6 [2018-10-27 06:08:20,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:20,833 INFO L82 PathProgramCache]: Analyzing trace with hash 927304, now seen corresponding path program 1 times [2018-10-27 06:08:20,833 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:20,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:20,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:20,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:20,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:20,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:20,845 INFO L82 PathProgramCache]: Analyzing trace with hash 3111, now seen corresponding path program 1 times [2018-10-27 06:08:20,845 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:20,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:20,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:20,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:20,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:20,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:20,852 INFO L82 PathProgramCache]: Analyzing trace with hash 891141294, now seen corresponding path program 1 times [2018-10-27 06:08:20,852 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:20,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:20,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:20,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:20,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:20,921 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:20,921 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:20,921 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:20,921 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:20,921 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:20,921 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:20,921 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:20,921 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:20,922 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-10-27 06:08:20,922 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:20,922 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:20,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:20,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:21,122 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:21,122 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,126 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,127 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,132 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,132 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,150 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,151 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,153 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,153 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,172 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,172 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,175 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,175 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,194 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,194 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,208 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,208 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,228 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,228 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,230 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,231 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,250 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,250 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,256 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,256 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,276 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,276 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,283 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,283 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,302 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,302 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,304 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,304 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,323 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,323 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:21,325 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:21,325 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:21,343 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:21,363 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:21,363 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:33,443 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:08:33,450 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:33,451 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:33,451 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:33,451 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:33,451 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:33,451 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:33,451 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:33,451 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:33,452 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-10-27 06:08:33,452 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:33,452 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:33,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:33,627 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:33,627 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:33,627 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:33,628 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:33,629 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:33,629 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:33,629 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:33,629 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:33,629 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:33,630 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:33,631 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:33,635 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:33,635 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:33,635 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:33,635 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:33,636 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:33,636 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:33,636 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:33,636 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:33,637 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:33,637 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:33,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:33,638 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:33,638 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:33,638 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:33,638 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:33,639 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:33,639 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:33,645 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:33,645 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:33,648 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:33,648 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:33,648 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:33,648 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:33,648 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:33,649 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:33,649 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:33,650 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:33,650 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:33,651 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:33,651 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:33,651 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:33,651 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:33,651 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:33,655 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:33,656 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:33,657 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:33,657 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:33,657 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:33,658 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:33,658 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:33,658 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:33,658 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:33,658 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:33,659 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:33,659 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:33,663 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:33,663 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:33,664 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:33,664 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:33,664 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:33,666 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:33,667 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:33,706 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:33,732 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2018-10-27 06:08:33,732 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-10-27 06:08:33,732 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:33,734 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:33,734 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:33,734 INFO L519 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] [2018-10-27 06:08:33,780 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:33,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:33,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:33,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:33,887 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 [2018-10-27 06:08:33,888 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-10-27 06:08:33,928 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 42 states and 52 transitions. Complement of second has 6 states. [2018-10-27 06:08:33,929 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 [2018-10-27 06:08:33,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:08:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2018-10-27 06:08:33,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2018-10-27 06:08:33,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:33,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 6 letters. Loop has 2 letters. [2018-10-27 06:08:33,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:33,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 4 letters. [2018-10-27 06:08:33,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:33,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 52 transitions. [2018-10-27 06:08:33,934 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2018-10-27 06:08:33,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 35 states and 44 transitions. [2018-10-27 06:08:33,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-10-27 06:08:33,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2018-10-27 06:08:33,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 44 transitions. [2018-10-27 06:08:33,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:33,936 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2018-10-27 06:08:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 44 transitions. [2018-10-27 06:08:33,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2018-10-27 06:08:33,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-27 06:08:33,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2018-10-27 06:08:33,938 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2018-10-27 06:08:33,938 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2018-10-27 06:08:33,938 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:08:33,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2018-10-27 06:08:33,939 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:33,939 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:33,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:33,943 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:33,943 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:33,943 INFO L793 eck$LassoCheckResult]: Stem: 314#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 312#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 313#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 315#L12 assume !!(f_~k~0 <= 1073741823); 319#L15-2 assume true; 295#L15 assume !(f_~z~0 < f_~k~0); 296#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 318#L3 assume !(__VERIFIER_assert_~cond == 0); 317#L3-2 assume { :end_inline___VERIFIER_assert } true; 301#L20-2 [2018-10-27 06:08:33,944 INFO L795 eck$LassoCheckResult]: Loop: 301#L20-2 assume true; 302#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 303#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 301#L20-2 [2018-10-27 06:08:33,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:33,944 INFO L82 PathProgramCache]: Analyzing trace with hash -563527921, now seen corresponding path program 1 times [2018-10-27 06:08:33,944 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:33,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:33,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:33,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:33,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:34,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:08:34,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 06:08:34,006 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-10-27 06:08:34,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:34,006 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 1 times [2018-10-27 06:08:34,007 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:34,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:34,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:34,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 06:08:34,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 06:08:34,081 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-10-27 06:08:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:08:34,120 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-10-27 06:08:34,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 06:08:34,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2018-10-27 06:08:34,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:34,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 29 states and 34 transitions. [2018-10-27 06:08:34,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-10-27 06:08:34,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2018-10-27 06:08:34,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2018-10-27 06:08:34,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:34,122 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-10-27 06:08:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2018-10-27 06:08:34,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-10-27 06:08:34,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-27 06:08:34,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2018-10-27 06:08:34,124 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-10-27 06:08:34,124 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-10-27 06:08:34,124 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:08:34,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2018-10-27 06:08:34,124 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:34,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:34,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:34,125 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:34,125 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:34,125 INFO L793 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 383#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 384#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;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; 386#L12 assume !!(f_~k~0 <= 1073741823); 389#L15-2 assume true; 366#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 367#L15-2 assume true; 364#L15 assume !(f_~z~0 < f_~k~0); 365#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 390#L3 assume !(__VERIFIER_assert_~cond == 0); 388#L3-2 assume { :end_inline___VERIFIER_assert } true; 372#L20-2 [2018-10-27 06:08:34,125 INFO L795 eck$LassoCheckResult]: Loop: 372#L20-2 assume true; 373#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 374#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 372#L20-2 [2018-10-27 06:08:34,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:34,126 INFO L82 PathProgramCache]: Analyzing trace with hash -336825591, now seen corresponding path program 1 times [2018-10-27 06:08:34,126 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:34,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:34,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:34,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:34,139 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 2 times [2018-10-27 06:08:34,139 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:34,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:34,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:34,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:34,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1327540092, now seen corresponding path program 1 times [2018-10-27 06:08:34,147 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:34,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:34,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,148 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:34,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,330 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:34,330 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:34,330 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:34,330 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:34,330 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:34,330 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:34,330 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:34,330 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:34,330 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-10-27 06:08:34,330 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:34,330 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:34,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,492 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:34,492 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:34,496 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:34,496 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:34,498 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:34,498 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:34,515 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:34,515 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:34,522 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:34,522 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:34,539 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:34,539 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:34,587 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:34,587 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:34,658 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:34,660 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:34,660 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:34,660 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:34,660 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:34,660 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:34,660 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:34,660 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:34,660 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:34,661 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-10-27 06:08:34,661 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:34,661 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:34,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:34,819 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:34,819 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:34,820 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:34,820 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:34,820 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:34,820 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:34,820 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:34,821 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:34,821 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:34,821 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:34,822 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:34,822 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:34,822 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:34,822 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:34,822 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:34,823 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:34,829 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:34,829 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:34,833 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:34,834 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:34,834 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:34,834 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:34,834 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:34,834 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:34,838 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:34,839 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:34,849 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:34,854 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:08:34,854 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:08:34,854 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:34,855 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:34,855 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:34,855 INFO L519 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] [2018-10-27 06:08:34,892 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:34,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:34,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:34,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:34,945 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 [2018-10-27 06:08:34,945 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 9 Second operand 5 states. [2018-10-27 06:08:34,972 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 35 states and 42 transitions. Complement of second has 8 states. [2018-10-27 06:08:34,973 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 [2018-10-27 06:08:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:34,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-10-27 06:08:34,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2018-10-27 06:08:34,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:34,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2018-10-27 06:08:34,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:34,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2018-10-27 06:08:34,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:34,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2018-10-27 06:08:34,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:34,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 34 states and 41 transitions. [2018-10-27 06:08:34,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-10-27 06:08:34,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-10-27 06:08:34,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2018-10-27 06:08:34,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:34,976 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-10-27 06:08:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2018-10-27 06:08:34,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-10-27 06:08:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-27 06:08:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2018-10-27 06:08:34,978 INFO L728 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-10-27 06:08:34,978 INFO L608 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-10-27 06:08:34,978 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:08:34,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2018-10-27 06:08:34,978 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:34,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:34,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:34,979 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:34,979 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:34,979 INFO L793 eck$LassoCheckResult]: Stem: 528#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 526#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 527#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;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; 530#L12-1 assume !!(f_~k~0 <= 1073741823); 521#L15-6 assume true; 522#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 523#L15-6 assume true; 524#L15-4 assume !(f_~z~0 < f_~k~0); 518#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 519#L3-3 assume !(__VERIFIER_assert_~cond == 0); 520#L3-5 assume { :end_inline___VERIFIER_assert } true; 507#L20-5 [2018-10-27 06:08:34,979 INFO L795 eck$LassoCheckResult]: Loop: 507#L20-5 assume true; 508#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 509#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 507#L20-5 [2018-10-27 06:08:34,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:34,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1892980926, now seen corresponding path program 1 times [2018-10-27 06:08:34,980 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:34,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:34,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:34,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:34,988 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 1 times [2018-10-27 06:08:34,988 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:34,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:34,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:34,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:34,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:34,992 INFO L82 PathProgramCache]: Analyzing trace with hash 874260548, now seen corresponding path program 1 times [2018-10-27 06:08:34,992 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:34,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:34,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:34,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:35,126 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:35,126 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:35,127 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:35,127 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:35,127 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:35,127 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:35,127 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:35,127 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:35,127 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-10-27 06:08:35,127 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:35,127 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:35,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,266 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:35,266 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:35,269 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:35,269 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:35,277 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:35,278 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:35,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:35,295 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:35,300 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:35,300 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:35,318 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:35,318 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:35,324 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:35,324 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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) [2018-10-27 06:08:35,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:35,360 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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) [2018-10-27 06:08:35,402 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:35,402 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:35,544 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:35,546 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:35,546 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:35,546 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:35,546 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:35,546 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:35,546 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:35,546 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:35,547 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:35,547 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-10-27 06:08:35,547 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:35,547 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:35,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:35,809 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2018-10-27 06:08:35,853 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:35,854 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:35,854 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:35,855 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,855 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:35,855 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,855 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,855 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,855 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:35,855 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:35,856 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,856 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 [2018-10-27 06:08:35,857 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,857 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,857 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,857 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,858 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:35,858 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:35,860 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,860 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 [2018-10-27 06:08:35,860 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,861 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,861 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,861 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,862 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:35,862 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:35,865 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,865 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:35,865 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,865 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:35,865 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,866 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,866 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,866 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:35,866 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:35,867 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,868 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:35,868 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,868 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:35,868 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,868 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,868 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,869 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:35,869 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:35,869 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,869 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 [2018-10-27 06:08:35,870 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,870 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,870 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,870 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,871 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:35,871 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:35,874 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,874 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:35,875 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,875 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:35,875 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,875 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,875 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,876 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:35,876 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:35,876 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,876 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:35,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,877 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:35,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,877 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,877 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,877 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:35,878 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:35,878 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,878 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:35,879 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,879 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:35,879 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,879 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,879 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,879 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:35,880 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:35,880 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:35,880 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:35,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:35,881 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:35,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:35,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:35,882 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:35,882 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:35,890 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:35,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:08:35,893 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-10-27 06:08:35,893 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:35,894 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:35,894 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:35,894 INFO L519 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] [2018-10-27 06:08:35,932 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:35,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:35,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:35,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:35,969 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 [2018-10-27 06:08:35,969 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12 Second operand 5 states. [2018-10-27 06:08:36,002 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12. Second operand 5 states. Result 41 states and 50 transitions. Complement of second has 8 states. [2018-10-27 06:08:36,003 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 [2018-10-27 06:08:36,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:36,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-10-27 06:08:36,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2018-10-27 06:08:36,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:36,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2018-10-27 06:08:36,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:36,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2018-10-27 06:08:36,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:36,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2018-10-27 06:08:36,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:36,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 40 states and 49 transitions. [2018-10-27 06:08:36,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-10-27 06:08:36,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-10-27 06:08:36,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 49 transitions. [2018-10-27 06:08:36,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:36,006 INFO L705 BuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-10-27 06:08:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 49 transitions. [2018-10-27 06:08:36,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-10-27 06:08:36,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-27 06:08:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-27 06:08:36,009 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-27 06:08:36,009 INFO L608 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-27 06:08:36,009 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-10-27 06:08:36,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 48 transitions. [2018-10-27 06:08:36,009 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:36,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:36,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:36,010 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:36,010 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:08:36,010 INFO L793 eck$LassoCheckResult]: Stem: 685#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 683#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 684#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;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; 686#L12 assume !!(f_~k~0 <= 1073741823); 690#L15-2 assume true; 661#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 662#L15-2 assume true; 659#L15 assume !(f_~z~0 < f_~k~0); 660#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 691#L3 assume !(__VERIFIER_assert_~cond == 0); 688#L3-2 assume { :end_inline___VERIFIER_assert } true; 689#L20-2 assume true; 671#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 672#L20 assume f_~c~0 % 256 != 0; 682#L21 [2018-10-27 06:08:36,010 INFO L795 eck$LassoCheckResult]: Loop: 682#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; 667#L20-2 assume true; 668#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 692#L20 assume f_~c~0 % 256 != 0; 682#L21 [2018-10-27 06:08:36,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:36,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1327540096, now seen corresponding path program 1 times [2018-10-27 06:08:36,011 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:36,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:36,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:36,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:36,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:36,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:36,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2421209, now seen corresponding path program 1 times [2018-10-27 06:08:36,028 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:36,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:36,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:36,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:36,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:36,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:36,033 INFO L82 PathProgramCache]: Analyzing trace with hash 144044760, now seen corresponding path program 1 times [2018-10-27 06:08:36,033 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:36,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:36,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:36,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:36,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:36,099 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:36,099 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:36,099 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:36,099 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:36,099 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:36,099 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:36,099 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:36,099 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:36,099 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Loop [2018-10-27 06:08:36,099 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:36,099 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:36,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,193 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:36,193 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,197 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,197 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:36,215 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,215 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,218 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,218 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:36,237 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,238 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-191, ULTIMATE.start_f_~y~0=65} Honda state: {ULTIMATE.start_f_#t~nondet4=-191, ULTIMATE.start_f_~y~0=65} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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) [2018-10-27 06:08:36,268 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,268 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:36,280 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,280 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-222, ULTIMATE.start_f_~c~0=-222} Honda state: {ULTIMATE.start_f_#t~nondet3=-222, ULTIMATE.start_f_~c~0=-222} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,312 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,312 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,331 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:36,331 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:36,359 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,359 INFO L446 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=-3}, {ULTIMATE.start_f_~z~0=3}, {ULTIMATE.start_f_~z~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2018-10-27 06:08:36,506 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:36,507 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:36,507 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:36,507 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:36,507 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:36,507 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:36,507 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:36,507 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:36,507 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-10-27 06:08:36,507 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:36,507 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:36,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:36,723 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:36,723 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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) [2018-10-27 06:08:36,742 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,742 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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) [2018-10-27 06:08:36,781 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:36,781 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:36,833 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,833 INFO L446 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=-1, ULTIMATE.start_f_~k~0=-1}, {ULTIMATE.start_f_~z~0=7, ULTIMATE.start_f_~k~0=7}, {ULTIMATE.start_f_~z~0=-7, ULTIMATE.start_f_~k~0=-6}] Lambdas: [8, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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) [2018-10-27 06:08:36,863 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,863 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:36,873 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,873 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,895 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,895 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:36,902 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,902 INFO L446 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=-65, ULTIMATE.start_f_~y~0=191} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,919 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,919 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:36,921 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,921 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,939 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:36,942 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,942 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,960 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,960 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:36,962 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,962 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:36,980 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:36,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:36,984 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:36,984 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:37,002 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:37,002 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:37,004 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:37,004 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:37,023 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:37,023 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:37,043 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:37,043 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:37,231 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:37,233 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:37,233 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:37,233 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:37,233 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:37,233 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:37,233 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:37,233 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:37,233 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:37,233 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-10-27 06:08:37,233 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:37,234 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:37,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,498 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:37,498 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:37,498 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:37,499 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:37,499 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:37,499 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:37,499 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:37,500 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:37,500 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:37,503 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:37,503 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:37,510 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:37,510 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:37,510 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:37,510 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:37,512 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:37,512 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:37,517 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:37,518 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:37,518 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:37,518 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:37,518 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:37,518 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:37,524 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:37,524 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:37,531 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:37,532 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:37,532 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:37,532 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:37,532 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:37,532 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:37,532 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:37,533 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:37,533 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:37,533 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:37,534 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:37,534 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:37,534 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:37,534 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:37,534 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:37,535 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:37,535 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:37,550 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:37,550 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:37,551 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:37,551 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:37,551 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:37,551 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:37,556 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:37,556 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:37,563 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:37,567 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-10-27 06:08:37,568 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:08:37,568 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:37,569 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:37,569 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:37,569 INFO L519 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] [2018-10-27 06:08:37,604 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:37,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:37,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:37,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:37,785 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 [2018-10-27 06:08:37,785 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-10-27 06:08:37,822 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 52 states and 65 transitions. Complement of second has 7 states. [2018-10-27 06:08:37,823 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 [2018-10-27 06:08:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:37,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2018-10-27 06:08:37,823 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 4 letters. [2018-10-27 06:08:37,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:37,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 18 letters. Loop has 4 letters. [2018-10-27 06:08:37,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:37,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 8 letters. [2018-10-27 06:08:37,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:37,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2018-10-27 06:08:37,830 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-10-27 06:08:37,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 47 states and 58 transitions. [2018-10-27 06:08:37,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-10-27 06:08:37,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-10-27 06:08:37,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 58 transitions. [2018-10-27 06:08:37,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:37,831 INFO L705 BuchiCegarLoop]: Abstraction has 47 states and 58 transitions. [2018-10-27 06:08:37,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 58 transitions. [2018-10-27 06:08:37,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2018-10-27 06:08:37,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-27 06:08:37,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2018-10-27 06:08:37,834 INFO L728 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-10-27 06:08:37,834 INFO L608 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-10-27 06:08:37,834 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-10-27 06:08:37,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 57 transitions. [2018-10-27 06:08:37,835 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-10-27 06:08:37,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:37,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:37,835 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:37,835 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:08:37,842 INFO L793 eck$LassoCheckResult]: Stem: 869#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 865#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 866#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;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; 871#L12-1 assume !!(f_~k~0 <= 1073741823); 858#L15-6 assume true; 859#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 860#L15-6 assume true; 861#L15-4 assume !(f_~z~0 < f_~k~0); 854#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 855#L3-3 assume !(__VERIFIER_assert_~cond == 0); 856#L3-5 assume { :end_inline___VERIFIER_assert } true; 857#L20-5 assume true; 842#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 843#L20-3 assume f_~c~0 % 256 != 0; 845#L21-1 [2018-10-27 06:08:37,842 INFO L795 eck$LassoCheckResult]: Loop: 845#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; 838#L20-5 assume true; 839#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 878#L20-3 assume f_~c~0 % 256 != 0; 845#L21-1 [2018-10-27 06:08:37,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:37,843 INFO L82 PathProgramCache]: Analyzing trace with hash 874260544, now seen corresponding path program 1 times [2018-10-27 06:08:37,843 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:37,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:37,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:37,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:37,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:37,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:37,856 INFO L82 PathProgramCache]: Analyzing trace with hash 4052761, now seen corresponding path program 1 times [2018-10-27 06:08:37,856 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:37,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:37,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:37,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:37,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:37,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:37,864 INFO L82 PathProgramCache]: Analyzing trace with hash -42088488, now seen corresponding path program 1 times [2018-10-27 06:08:37,864 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:37,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:37,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:37,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:37,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:37,922 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:37,922 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:37,922 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:37,922 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:37,922 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:37,922 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:37,922 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:37,922 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:37,922 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Loop [2018-10-27 06:08:37,922 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:37,923 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:37,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:37,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,183 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:38,183 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,186 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,186 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,207 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:38,207 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,229 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,229 INFO L446 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=-3}, {ULTIMATE.start_f_~z~0=3}, {ULTIMATE.start_f_~z~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,247 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,253 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,253 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,270 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,288 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,288 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,291 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,291 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,298 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,298 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=255, ULTIMATE.start_f_~y~0=255} Honda state: {ULTIMATE.start_f_#t~nondet4=255, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-10-27 06:08:38,398 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:38,398 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:38,398 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:38,398 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:38,399 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:38,399 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:38,399 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:38,399 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:38,399 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-10-27 06:08:38,399 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:38,399 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:38,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,577 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:38,577 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,580 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,580 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,601 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,601 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,618 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,618 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,621 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,621 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,638 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,638 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,644 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,644 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,661 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,661 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,663 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,663 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,681 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,681 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,700 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:38,700 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,730 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,730 INFO L446 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=-8}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=7}] Lambdas: [1, 4, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,748 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,748 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,750 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,750 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,768 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,769 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,775 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,775 INFO L446 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=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,794 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,794 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,796 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,796 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,814 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,814 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,816 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,816 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,835 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,838 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:38,838 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,857 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:38,857 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:38,880 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:38,880 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:39,043 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:39,044 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:39,044 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:39,044 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:39,044 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:39,044 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:39,044 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:39,044 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:39,044 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:39,044 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-10-27 06:08:39,045 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:39,045 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:39,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,252 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:39,252 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:39,252 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,253 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,253 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,253 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,253 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,254 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:39,254 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:39,256 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,256 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,256 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,256 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,257 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,257 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,257 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,257 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,257 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,257 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,258 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,258 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,258 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,258 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,258 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,258 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,259 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,259 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,259 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,259 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,260 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,260 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,260 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,260 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,261 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:39,261 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:39,263 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,263 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,264 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,264 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,264 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,264 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,264 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,264 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,264 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,265 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,265 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,265 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,265 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,265 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,266 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,266 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:39,266 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:39,270 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,271 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,271 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,271 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,271 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,271 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,272 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,272 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,272 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,272 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,273 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,273 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,273 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,273 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,273 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,273 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,273 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,274 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,274 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,274 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,274 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,275 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,275 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,276 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:39,276 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:39,280 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,281 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,281 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,282 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:39,282 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:39,286 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,287 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,287 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,287 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,287 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,287 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,288 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:39,288 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:39,294 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:39,298 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:08:39,298 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-10-27 06:08:39,298 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:39,299 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:39,299 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:39,300 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-10-27 06:08:39,368 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:39,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:39,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:39,419 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:39,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:39,436 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 [2018-10-27 06:08:39,436 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 18 Second operand 5 states. [2018-10-27 06:08:39,468 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 59 states and 74 transitions. Complement of second has 7 states. [2018-10-27 06:08:39,469 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 [2018-10-27 06:08:39,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2018-10-27 06:08:39,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 4 letters. [2018-10-27 06:08:39,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:39,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 18 letters. Loop has 4 letters. [2018-10-27 06:08:39,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:39,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 8 letters. [2018-10-27 06:08:39,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:39,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 74 transitions. [2018-10-27 06:08:39,471 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:08:39,472 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 67 transitions. [2018-10-27 06:08:39,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-10-27 06:08:39,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-10-27 06:08:39,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 67 transitions. [2018-10-27 06:08:39,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:39,472 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 67 transitions. [2018-10-27 06:08:39,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 67 transitions. [2018-10-27 06:08:39,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2018-10-27 06:08:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-10-27 06:08:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2018-10-27 06:08:39,475 INFO L728 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2018-10-27 06:08:39,475 INFO L608 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2018-10-27 06:08:39,475 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-10-27 06:08:39,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 66 transitions. [2018-10-27 06:08:39,476 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:08:39,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:39,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:39,477 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:39,477 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:39,477 INFO L793 eck$LassoCheckResult]: Stem: 1061#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1057#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1058#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;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; 1062#L12 assume !!(f_~k~0 <= 1073741823); 1066#L15-2 assume true; 1034#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1035#L15-2 assume true; 1032#L15 assume !(f_~z~0 < f_~k~0); 1033#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1067#L3 assume !(__VERIFIER_assert_~cond == 0); 1064#L3-2 assume { :end_inline___VERIFIER_assert } true; 1065#L20-2 assume true; 1074#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1073#L20 assume f_~c~0 % 256 != 0; 1059#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; 1060#L20-2 assume true; 1079#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1078#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1040#L20-2 [2018-10-27 06:08:39,477 INFO L795 eck$LassoCheckResult]: Loop: 1040#L20-2 assume true; 1041#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1044#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1040#L20-2 [2018-10-27 06:08:39,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:39,477 INFO L82 PathProgramCache]: Analyzing trace with hash 144044764, now seen corresponding path program 1 times [2018-10-27 06:08:39,477 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:39,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:39,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:39,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:39,488 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 3 times [2018-10-27 06:08:39,488 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:39,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:39,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:39,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:39,491 INFO L82 PathProgramCache]: Analyzing trace with hash 565273553, now seen corresponding path program 2 times [2018-10-27 06:08:39,491 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:39,492 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:39,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,492 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:39,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,619 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:39,619 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:39,619 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:39,619 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:39,619 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:39,619 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:39,619 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:39,620 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:39,620 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-10-27 06:08:39,620 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:39,620 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:39,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,766 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:39,766 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:39,770 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:39,770 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:39,794 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:39,794 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,211 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:40,213 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:40,213 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:40,213 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:40,213 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:40,213 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:40,213 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:40,213 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:40,213 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:40,213 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-10-27 06:08:40,213 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:40,213 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:40,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,387 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:40,388 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:40,388 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:40,388 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:40,388 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:40,388 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:40,389 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:40,389 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:40,390 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:40,396 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:40,396 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:40,396 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:40,396 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:40,396 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:40,397 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:40,397 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:40,397 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:40,410 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:40,414 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:08:40,414 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:08:40,414 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:40,415 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:40,415 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:40,415 INFO L519 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] [2018-10-27 06:08:40,448 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:40,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:40,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:40,502 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:40,511 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 [2018-10-27 06:08:40,511 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 66 transitions. cyclomatic complexity: 21 Second operand 5 states. [2018-10-27 06:08:40,538 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 66 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 80 states and 97 transitions. Complement of second has 8 states. [2018-10-27 06:08:40,541 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 [2018-10-27 06:08:40,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:40,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-10-27 06:08:40,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 3 letters. [2018-10-27 06:08:40,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:40,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-10-27 06:08:40,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:40,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 6 letters. [2018-10-27 06:08:40,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:40,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 97 transitions. [2018-10-27 06:08:40,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:08:40,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 68 states and 83 transitions. [2018-10-27 06:08:40,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-10-27 06:08:40,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2018-10-27 06:08:40,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 83 transitions. [2018-10-27 06:08:40,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:40,544 INFO L705 BuchiCegarLoop]: Abstraction has 68 states and 83 transitions. [2018-10-27 06:08:40,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 83 transitions. [2018-10-27 06:08:40,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2018-10-27 06:08:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-10-27 06:08:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2018-10-27 06:08:40,547 INFO L728 BuchiCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-10-27 06:08:40,547 INFO L608 BuchiCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-10-27 06:08:40,547 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-10-27 06:08:40,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 80 transitions. [2018-10-27 06:08:40,548 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:08:40,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:40,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:40,548 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:40,549 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:40,549 INFO L793 eck$LassoCheckResult]: Stem: 1296#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1292#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1293#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;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; 1298#L12-1 assume !!(f_~k~0 <= 1073741823); 1282#L15-6 assume true; 1283#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1284#L15-6 assume true; 1285#L15-4 assume !(f_~z~0 < f_~k~0); 1278#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1279#L3-3 assume !(__VERIFIER_assert_~cond == 0); 1280#L3-5 assume { :end_inline___VERIFIER_assert } true; 1281#L20-5 assume true; 1304#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1302#L20-3 assume f_~c~0 % 256 != 0; 1289#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; 1290#L20-5 assume true; 1306#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1305#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1263#L20-5 [2018-10-27 06:08:40,549 INFO L795 eck$LassoCheckResult]: Loop: 1263#L20-5 assume true; 1264#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1267#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1263#L20-5 [2018-10-27 06:08:40,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:40,549 INFO L82 PathProgramCache]: Analyzing trace with hash -42088484, now seen corresponding path program 1 times [2018-10-27 06:08:40,549 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:40,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:40,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:40,550 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:40,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:40,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:40,558 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 2 times [2018-10-27 06:08:40,558 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:40,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:40,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:40,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:40,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:40,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:40,561 INFO L82 PathProgramCache]: Analyzing trace with hash 272514150, now seen corresponding path program 2 times [2018-10-27 06:08:40,561 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:40,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:40,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:40,562 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:40,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:40,687 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-27 06:08:40,772 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:40,772 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:40,772 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:40,772 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:40,772 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:40,772 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:40,772 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:40,772 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:40,773 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-10-27 06:08:40,773 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:40,773 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:40,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,950 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:40,950 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:40,954 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,954 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,959 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,959 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:40,979 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,979 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,991 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,991 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:41,010 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:41,010 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:41,032 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:41,032 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:41,600 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:41,601 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:41,601 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:41,601 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:41,601 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:41,601 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:41,601 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:41,601 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:41,602 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:41,602 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-10-27 06:08:41,602 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:41,602 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:41,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:41,834 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:41,834 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:41,835 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:41,835 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:41,835 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:41,835 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:41,835 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:41,836 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:41,836 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:41,838 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:41,838 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:41,838 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:41,838 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:41,839 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:41,839 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:41,839 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:41,839 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:41,839 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:41,851 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:41,852 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:41,852 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:41,852 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:41,852 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:41,852 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:41,853 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:41,853 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:41,854 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:41,854 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:41,855 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:41,855 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:41,855 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:41,855 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:41,856 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:41,856 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:41,861 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:41,863 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:08:41,875 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-10-27 06:08:41,876 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:41,877 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:41,877 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:41,877 INFO L519 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] [2018-10-27 06:08:41,906 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:42,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:42,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:42,469 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:42,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:42,493 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 [2018-10-27 06:08:42,493 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 80 transitions. cyclomatic complexity: 25 Second operand 5 states. [2018-10-27 06:08:42,529 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 80 transitions. cyclomatic complexity: 25. Second operand 5 states. Result 92 states and 111 transitions. Complement of second has 8 states. [2018-10-27 06:08:42,532 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 [2018-10-27 06:08:42,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-10-27 06:08:42,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 3 letters. [2018-10-27 06:08:42,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:42,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-10-27 06:08:42,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:42,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 6 letters. [2018-10-27 06:08:42,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:42,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 111 transitions. [2018-10-27 06:08:42,534 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:08:42,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 80 states and 97 transitions. [2018-10-27 06:08:42,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-10-27 06:08:42,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-10-27 06:08:42,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 97 transitions. [2018-10-27 06:08:42,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:42,535 INFO L705 BuchiCegarLoop]: Abstraction has 80 states and 97 transitions. [2018-10-27 06:08:42,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 97 transitions. [2018-10-27 06:08:42,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2018-10-27 06:08:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-10-27 06:08:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 94 transitions. [2018-10-27 06:08:42,538 INFO L728 BuchiCegarLoop]: Abstraction has 77 states and 94 transitions. [2018-10-27 06:08:42,539 INFO L608 BuchiCegarLoop]: Abstraction has 77 states and 94 transitions. [2018-10-27 06:08:42,539 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-10-27 06:08:42,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 94 transitions. [2018-10-27 06:08:42,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:08:42,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:42,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:42,548 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:42,548 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:42,548 INFO L793 eck$LassoCheckResult]: Stem: 1554#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1550#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;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; 1555#L12 assume !!(f_~k~0 <= 1073741823); 1558#L15-2 assume true; 1516#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1517#L15-2 assume true; 1514#L15 assume !(f_~z~0 < f_~k~0); 1515#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1559#L3 assume !(__VERIFIER_assert_~cond == 0); 1557#L3-2 assume { :end_inline___VERIFIER_assert } true; 1529#L20-2 assume true; 1531#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1587#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1585#L20-2 assume true; 1534#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1535#L20 assume f_~c~0 % 256 != 0; 1545#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; 1582#L20-2 assume true; 1581#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1570#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1571#L20-2 [2018-10-27 06:08:42,548 INFO L795 eck$LassoCheckResult]: Loop: 1571#L20-2 assume true; 1576#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1573#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1571#L20-2 [2018-10-27 06:08:42,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:42,549 INFO L82 PathProgramCache]: Analyzing trace with hash -2051539711, now seen corresponding path program 3 times [2018-10-27 06:08:42,549 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:42,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:42,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:42,549 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:42,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:42,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:42,570 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 4 times [2018-10-27 06:08:42,570 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:42,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:42,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:42,571 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:42,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:42,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:42,573 INFO L82 PathProgramCache]: Analyzing trace with hash -34870388, now seen corresponding path program 4 times [2018-10-27 06:08:42,574 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:42,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:42,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:42,574 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:42,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:42,729 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:42,729 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:42,729 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:42,729 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:42,730 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:42,730 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:42,730 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:42,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:42,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-10-27 06:08:42,730 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:42,730 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:42,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:42,916 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:42,916 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:42,923 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:42,923 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:42,931 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:42,931 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:42,948 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:42,948 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:42,950 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:42,950 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:42,980 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:42,980 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:42,997 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:42,997 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:43,001 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:43,001 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:43,020 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:43,020 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:43,491 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:43,493 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:43,493 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:43,493 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:43,493 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:43,493 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:43,493 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:43,493 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:43,493 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:43,493 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-10-27 06:08:43,493 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:43,493 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:43,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:43,661 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:43,661 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:43,661 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:43,662 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:43,662 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:43,662 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:43,662 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:43,662 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:43,662 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:43,662 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:43,663 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:43,663 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:43,663 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:43,663 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:43,663 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:43,664 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:43,664 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:43,664 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:43,666 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:43,666 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:43,666 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:43,666 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:43,666 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:43,667 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:43,667 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:43,667 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:43,680 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:43,681 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:43,681 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:43,681 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:43,681 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:43,682 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:43,682 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:43,682 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:43,693 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:43,710 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-10-27 06:08:43,710 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:08:43,711 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:43,711 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:43,711 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:43,712 INFO L519 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] [2018-10-27 06:08:43,743 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:43,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:43,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:43,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:43,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:43,810 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 [2018-10-27 06:08:43,810 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-10-27 06:08:43,834 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 90 states and 107 transitions. Complement of second has 8 states. [2018-10-27 06:08:43,835 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 [2018-10-27 06:08:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-10-27 06:08:43,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-10-27 06:08:43,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:43,836 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:08:43,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:43,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:43,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:43,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:43,875 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 [2018-10-27 06:08:43,875 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-10-27 06:08:43,902 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 90 states and 107 transitions. Complement of second has 8 states. [2018-10-27 06:08:43,903 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 [2018-10-27 06:08:43,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-10-27 06:08:43,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-10-27 06:08:43,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:43,904 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:08:43,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:43,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:43,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:43,941 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 [2018-10-27 06:08:43,941 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-10-27 06:08:43,986 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 95 states and 114 transitions. Complement of second has 7 states. [2018-10-27 06:08:43,988 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 [2018-10-27 06:08:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:43,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2018-10-27 06:08:43,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 21 letters. Loop has 3 letters. [2018-10-27 06:08:43,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:43,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 24 letters. Loop has 3 letters. [2018-10-27 06:08:43,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:43,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 21 letters. Loop has 6 letters. [2018-10-27 06:08:43,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:43,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 114 transitions. [2018-10-27 06:08:43,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:08:43,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 40 states and 48 transitions. [2018-10-27 06:08:43,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2018-10-27 06:08:43,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-10-27 06:08:43,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 48 transitions. [2018-10-27 06:08:43,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:43,993 INFO L705 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-10-27 06:08:43,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 48 transitions. [2018-10-27 06:08:43,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-10-27 06:08:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-27 06:08:43,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-10-27 06:08:43,995 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-10-27 06:08:43,995 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-10-27 06:08:43,995 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-10-27 06:08:44,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 48 transitions. [2018-10-27 06:08:44,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:08:44,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:44,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:44,005 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:44,005 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:44,005 INFO L793 eck$LassoCheckResult]: Stem: 2167#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 2166#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;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; 2168#L12-1 assume !!(f_~k~0 <= 1073741823); 2158#L15-6 assume true; 2159#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 2160#L15-6 assume true; 2161#L15-4 assume !(f_~z~0 < f_~k~0); 2155#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2156#L3-3 assume !(__VERIFIER_assert_~cond == 0); 2157#L3-5 assume { :end_inline___VERIFIER_assert } true; 2142#L20-5 assume true; 2144#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2179#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2178#L20-5 assume true; 2147#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2148#L20-3 assume f_~c~0 % 256 != 0; 2170#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; 2174#L20-5 assume true; 2173#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2171#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2152#L20-5 [2018-10-27 06:08:44,005 INFO L795 eck$LassoCheckResult]: Loop: 2152#L20-5 assume true; 2172#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2151#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2152#L20-5 [2018-10-27 06:08:44,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:44,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1950668182, now seen corresponding path program 3 times [2018-10-27 06:08:44,005 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:44,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:44,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:44,006 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:44,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:44,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:44,027 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 3 times [2018-10-27 06:08:44,027 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:44,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:44,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:44,028 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:44,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:44,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:44,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1448385644, now seen corresponding path program 4 times [2018-10-27 06:08:44,031 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:44,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:44,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:44,040 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:08:44,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:44,198 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2018-10-27 06:08:44,225 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:44,225 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:44,225 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:44,225 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:44,225 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:44,225 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:44,226 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:44,226 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:44,226 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-10-27 06:08:44,226 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:44,226 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:44,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:44,371 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:44,371 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,375 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,375 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,393 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,393 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,396 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,396 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,404 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,404 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,422 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,422 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,424 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,424 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,442 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,446 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,446 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,464 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,464 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,480 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,481 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,485 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,485 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,488 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,488 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,506 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,506 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,508 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,508 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,526 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,526 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,528 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,528 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,547 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,547 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,552 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,552 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,570 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,570 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:44,573 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:44,573 INFO L446 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_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,591 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:44,591 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a084729-9b1b-41f9-a4f6-3316405d14d4/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 [2018-10-27 06:08:44,615 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:44,615 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:45,053 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:45,055 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:45,055 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:45,055 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:45,055 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:45,055 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:45,055 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:45,055 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:45,055 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:45,055 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-10-27 06:08:45,055 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:45,055 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:45,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:45,264 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:45,264 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:45,264 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,265 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,265 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,265 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,265 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,265 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:45,266 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:45,267 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,267 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,267 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,267 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,267 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,272 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:45,273 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:45,274 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,275 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,275 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,275 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:45,276 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,276 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,276 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,276 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:45,276 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:45,277 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,277 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,277 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,277 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:45,277 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,277 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,278 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,278 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:45,278 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:45,278 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,278 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,279 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,279 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,279 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,279 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,282 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:45,282 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:45,283 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,283 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,283 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,284 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,284 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,284 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,284 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:45,284 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:45,286 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,286 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,287 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,287 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:45,287 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,287 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,287 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,287 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:45,287 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:45,304 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,304 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,304 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,304 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:45,305 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,305 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,305 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,305 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:45,305 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:45,305 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,306 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,306 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,306 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:45,306 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,306 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,306 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,306 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:45,307 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:45,307 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,307 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,309 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,309 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,309 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,309 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,310 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:45,310 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:45,312 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:45,312 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:45,312 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:45,312 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:45,312 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:45,313 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:45,313 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:45,313 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:45,331 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:45,335 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:08:45,343 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:08:45,344 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:45,345 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:45,345 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:45,345 INFO L519 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] [2018-10-27 06:08:45,384 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:45,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:45,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:45,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:45,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:45,450 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 [2018-10-27 06:08:45,450 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-10-27 06:08:45,469 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 53 states and 61 transitions. Complement of second has 8 states. [2018-10-27 06:08:45,469 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 [2018-10-27 06:08:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-10-27 06:08:45,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 21 letters. Loop has 3 letters. [2018-10-27 06:08:45,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:45,470 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:08:45,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:45,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:45,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:45,507 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 [2018-10-27 06:08:45,507 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-10-27 06:08:45,529 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 53 states and 61 transitions. Complement of second has 8 states. [2018-10-27 06:08:45,530 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 [2018-10-27 06:08:45,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:45,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-10-27 06:08:45,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 21 letters. Loop has 3 letters. [2018-10-27 06:08:45,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:45,531 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:08:45,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:45,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:45,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:45,576 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 [2018-10-27 06:08:45,576 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-10-27 06:08:45,617 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 58 states and 68 transitions. Complement of second has 7 states. [2018-10-27 06:08:45,618 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 [2018-10-27 06:08:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2018-10-27 06:08:45,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 21 letters. Loop has 3 letters. [2018-10-27 06:08:45,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:45,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 24 letters. Loop has 3 letters. [2018-10-27 06:08:45,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:45,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 21 letters. Loop has 6 letters. [2018-10-27 06:08:45,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:45,619 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 68 transitions. [2018-10-27 06:08:45,620 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:08:45,620 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 0 states and 0 transitions. [2018-10-27 06:08:45,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:08:45,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:08:45,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:08:45,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:08:45,621 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:08:45,621 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:08:45,621 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:08:45,621 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-10-27 06:08:45,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:08:45,621 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:08:45,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:08:45,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:08:45 BoogieIcfgContainer [2018-10-27 06:08:45,627 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:08:45,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:08:45,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:08:45,628 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:08:45,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:08:06" (3/4) ... [2018-10-27 06:08:45,631 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:08:45,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:08:45,632 INFO L168 Benchmark]: Toolchain (without parser) took 40006.51 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 263.2 MB). Free memory was 954.4 MB in the beginning and 1.2 GB in the end (delta: -264.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:08:45,633 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:08:45,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.30 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:08:45,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.19 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:08:45,634 INFO L168 Benchmark]: Boogie Preprocessor took 27.76 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:08:45,634 INFO L168 Benchmark]: RCFGBuilder took 550.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -243.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:08:45,634 INFO L168 Benchmark]: BuchiAutomizer took 39193.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -34.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-10-27 06:08:45,635 INFO L168 Benchmark]: Witness Printer took 4.15 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:08:45,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.30 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 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 36.19 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.76 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 550.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -243.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39193.05 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -34.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.15 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 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 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.1s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 37.0s. Construction of modules took 0.2s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 28 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 77 states and ocurred in iteration 9. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 356 SDtfs, 433 SDslu, 161 SDs, 0 SdLazy, 167 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 97ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 27.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...