./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/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 73643ecf8e1581c13142517bcc63dc5d77c96d29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 10:39:09,437 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 10:39:09,438 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 10:39:09,445 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 10:39:09,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 10:39:09,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 10:39:09,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 10:39:09,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 10:39:09,447 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 10:39:09,448 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 10:39:09,448 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 10:39:09,448 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 10:39:09,449 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 10:39:09,449 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 10:39:09,450 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 10:39:09,450 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 10:39:09,450 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 10:39:09,451 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 10:39:09,452 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 10:39:09,453 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 10:39:09,453 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 10:39:09,454 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 10:39:09,455 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 10:39:09,455 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 10:39:09,455 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 10:39:09,455 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 10:39:09,456 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 10:39:09,456 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 10:39:09,457 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 10:39:09,457 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 10:39:09,457 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 10:39:09,457 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 10:39:09,458 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 10:39:09,458 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 10:39:09,458 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 10:39:09,458 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 10:39:09,459 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-02 10:39:09,466 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 10:39:09,466 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 10:39:09,467 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 10:39:09,467 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 10:39:09,467 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 10:39:09,467 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 10:39:09,467 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 10:39:09,467 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 10:39:09,467 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 10:39:09,467 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 10:39:09,467 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 10:39:09,467 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 10:39:09,468 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 10:39:09,469 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 10:39:09,469 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 10:39:09,469 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 10:39:09,469 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 10:39:09,469 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 10:39:09,469 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 10:39:09,469 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 10:39:09,470 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 10:39:09,470 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_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/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 -> 73643ecf8e1581c13142517bcc63dc5d77c96d29 [2018-12-02 10:39:09,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 10:39:09,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 10:39:09,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 10:39:09,499 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 10:39:09,500 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 10:39:09,500 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/../../sv-benchmarks/c/loops/terminator_02_false-unreach-call_true-termination.i [2018-12-02 10:39:09,540 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/data/6810ef780/d3122b0ee7764451b97689f817fc78a8/FLAGfa36caf5e [2018-12-02 10:39:09,970 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 10:39:09,971 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/sv-benchmarks/c/loops/terminator_02_false-unreach-call_true-termination.i [2018-12-02 10:39:09,975 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/data/6810ef780/d3122b0ee7764451b97689f817fc78a8/FLAGfa36caf5e [2018-12-02 10:39:09,984 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/data/6810ef780/d3122b0ee7764451b97689f817fc78a8 [2018-12-02 10:39:09,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 10:39:09,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 10:39:09,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 10:39:09,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 10:39:09,990 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 10:39:09,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:39:09" (1/1) ... [2018-12-02 10:39:09,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:09, skipping insertion in model container [2018-12-02 10:39:09,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:39:09" (1/1) ... [2018-12-02 10:39:09,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 10:39:10,006 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 10:39:10,100 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 10:39:10,102 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 10:39:10,111 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 10:39:10,118 INFO L195 MainTranslator]: Completed translation [2018-12-02 10:39:10,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10 WrapperNode [2018-12-02 10:39:10,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 10:39:10,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 10:39:10,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 10:39:10,119 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 10:39:10,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 10:39:10,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 10:39:10,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 10:39:10,137 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 10:39:10,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... [2018-12-02 10:39:10,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 10:39:10,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 10:39:10,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 10:39:10,147 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 10:39:10,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 10:39:10,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 10:39:10,282 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 10:39:10,282 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-02 10:39:10,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:39:10 BoogieIcfgContainer [2018-12-02 10:39:10,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 10:39:10,283 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 10:39:10,283 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 10:39:10,285 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 10:39:10,285 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 10:39:10,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 10:39:09" (1/3) ... [2018-12-02 10:39:10,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68e53b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 10:39:10, skipping insertion in model container [2018-12-02 10:39:10,286 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 10:39:10,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:10" (2/3) ... [2018-12-02 10:39:10,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68e53b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 10:39:10, skipping insertion in model container [2018-12-02 10:39:10,287 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 10:39:10,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:39:10" (3/3) ... [2018-12-02 10:39:10,288 INFO L375 chiAutomizerObserver]: Analyzing ICFG terminator_02_false-unreach-call_true-termination.i [2018-12-02 10:39:10,319 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 10:39:10,320 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 10:39:10,320 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 10:39:10,320 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 10:39:10,320 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 10:39:10,320 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 10:39:10,320 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 10:39:10,320 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 10:39:10,320 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 10:39:10,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-02 10:39:10,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 10:39:10,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 10:39:10,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 10:39:10,344 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 10:39:10,344 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 10:39:10,344 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 10:39:10,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-12-02 10:39:10,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 10:39:10,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 10:39:10,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 10:39:10,345 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 10:39:10,345 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 10:39:10,350 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 10#L21-2true [2018-12-02 10:39:10,350 INFO L796 eck$LassoCheckResult]: Loop: 10#L21-2true assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 3#L21true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 10#L21-2true [2018-12-02 10:39:10,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:10,353 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-02 10:39:10,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:10,355 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:10,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:39:10,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:10,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-12-02 10:39:10,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:10,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:10,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:39:10,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:10,421 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-12-02 10:39:10,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:10,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:10,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:39:10,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,461 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 10:39:10,462 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 10:39:10,462 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 10:39:10,462 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 10:39:10,462 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 10:39:10,462 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,462 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 10:39:10,462 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 10:39:10,462 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration1_Loop [2018-12-02 10:39:10,462 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 10:39:10,463 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 10:39:10,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,561 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 10:39:10,562 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:10,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:10,589 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 10:39:10,590 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,592 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:10,593 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:10,601 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 10:39:10,601 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Honda state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,616 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:10,616 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,632 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 10:39:10,632 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:10,648 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 10:39:10,649 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 10:39:10,649 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 10:39:10,649 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 10:39:10,649 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 10:39:10,649 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 10:39:10,649 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,650 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 10:39:10,650 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 10:39:10,650 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration1_Loop [2018-12-02 10:39:10,650 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 10:39:10,650 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 10:39:10,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,706 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 10:39:10,710 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 10:39:10,712 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 10:39:10,713 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:10,713 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:10,713 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:10,714 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:10,714 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:10,715 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:10,715 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:10,719 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 10:39:10,719 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 10:39:10,719 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:10,720 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:10,720 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:10,720 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:10,720 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:10,721 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:10,721 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:10,725 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 10:39:10,728 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 10:39:10,728 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 10:39:10,729 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 10:39:10,730 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 10:39:10,730 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 10:39:10,730 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-12-02 10:39:10,731 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 10:39:10,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:10,756 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:10,764 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:39:10,787 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 10:39:10,787 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-12-02 10:39:10,816 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 8 states. [2018-12-02 10:39:10,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-02 10:39:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 10:39:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-12-02 10:39:10,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-02 10:39:10,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:10,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-02 10:39:10,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:10,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-02 10:39:10,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:10,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2018-12-02 10:39:10,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 10:39:10,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 7 states and 10 transitions. [2018-12-02 10:39:10,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-02 10:39:10,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-02 10:39:10,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-12-02 10:39:10,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 10:39:10,825 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 10:39:10,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-12-02 10:39:10,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-02 10:39:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-02 10:39:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-12-02 10:39:10,841 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 10:39:10,841 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-02 10:39:10,841 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 10:39:10,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-12-02 10:39:10,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 10:39:10,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 10:39:10,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 10:39:10,842 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-02 10:39:10,842 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 10:39:10,842 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 87#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 82#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 83#L21-2 [2018-12-02 10:39:10,842 INFO L796 eck$LassoCheckResult]: Loop: 83#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 88#L21 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 83#L21-2 [2018-12-02 10:39:10,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:10,843 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-12-02 10:39:10,843 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:10,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:10,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:39:10,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:10,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-12-02 10:39:10,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:10,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:10,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:39:10,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:10,856 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2018-12-02 10:39:10,856 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:10,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:10,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,856 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 10:39:10,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:10,881 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 10:39:10,882 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 10:39:10,882 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 10:39:10,882 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 10:39:10,882 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 10:39:10,882 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,882 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 10:39:10,882 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 10:39:10,882 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration2_Loop [2018-12-02 10:39:10,882 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 10:39:10,882 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 10:39:10,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:10,948 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 10:39:10,948 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,950 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:10,950 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:10,959 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 10:39:10,959 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Honda state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,974 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:10,974 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:10,991 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 10:39:10,991 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:11,014 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 10:39:11,015 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 10:39:11,016 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 10:39:11,016 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 10:39:11,016 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 10:39:11,016 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 10:39:11,016 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,016 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 10:39:11,016 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 10:39:11,016 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration2_Loop [2018-12-02 10:39:11,016 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 10:39:11,016 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 10:39:11,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,060 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 10:39:11,060 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 10:39:11,060 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 10:39:11,061 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:11,061 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:11,061 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:11,061 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:11,061 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:11,062 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:11,062 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:11,065 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 10:39:11,067 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 10:39:11,067 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 10:39:11,068 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 10:39:11,068 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 10:39:11,069 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 10:39:11,069 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-12-02 10:39:11,069 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 10:39:11,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:39:11,093 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 10:39:11,094 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-02 10:39:11,101 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2018-12-02 10:39:11,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 10:39:11,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 10:39:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-02 10:39:11,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-02 10:39:11,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 10:39:11,103 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-12-02 10:39:11,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-12-02 10:39:11,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 10:39:11,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-12-02 10:39:11,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-02 10:39:11,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-02 10:39:11,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-12-02 10:39:11,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 10:39:11,105 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-02 10:39:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-12-02 10:39:11,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-02 10:39:11,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-02 10:39:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-12-02 10:39:11,106 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-02 10:39:11,106 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-02 10:39:11,106 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 10:39:11,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2018-12-02 10:39:11,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 10:39:11,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 10:39:11,107 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 10:39:11,107 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2018-12-02 10:39:11,107 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 10:39:11,107 INFO L794 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 141#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 136#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 137#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 144#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 142#L21-2 [2018-12-02 10:39:11,107 INFO L796 eck$LassoCheckResult]: Loop: 142#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 143#L21 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 142#L21-2 [2018-12-02 10:39:11,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,107 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2018-12-02 10:39:11,107 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:11,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:11,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:39:11,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-12-02 10:39:11,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:11,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:11,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,118 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 10:39:11,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2018-12-02 10:39:11,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:11,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:11,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,123 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 10:39:11,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,146 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 10:39:11,147 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 10:39:11,147 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 10:39:11,147 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 10:39:11,147 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 10:39:11,147 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,147 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 10:39:11,147 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 10:39:11,147 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration3_Loop [2018-12-02 10:39:11,147 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 10:39:11,147 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 10:39:11,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,198 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 10:39:11,198 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,200 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:11,200 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,219 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 10:39:11,219 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:11,235 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 10:39:11,236 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 10:39:11,236 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 10:39:11,236 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 10:39:11,236 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 10:39:11,236 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 10:39:11,236 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,236 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 10:39:11,236 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 10:39:11,236 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration3_Loop [2018-12-02 10:39:11,236 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 10:39:11,236 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 10:39:11,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,305 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 10:39:11,306 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 10:39:11,306 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 [2018-12-02 10:39:11,307 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:11,307 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:11,307 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:11,307 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:11,307 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:11,308 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:11,308 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:11,310 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 10:39:11,312 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 10:39:11,313 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 10:39:11,313 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 10:39:11,313 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 10:39:11,313 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 10:39:11,313 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-12-02 10:39:11,314 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 10:39:11,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:39:11,335 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 10:39:11,335 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 10:39:11,342 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-12-02 10:39:11,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 10:39:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 10:39:11,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-02 10:39:11,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 10:39:11,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,342 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 10:39:11,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,357 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:39:11,368 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 10:39:11,368 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 10:39:11,374 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-12-02 10:39:11,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 10:39:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 10:39:11,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-02 10:39:11,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 10:39:11,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,375 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 10:39:11,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,389 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,392 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:39:11,400 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 10:39:11,400 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 10:39:11,406 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2018-12-02 10:39:11,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 10:39:11,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 10:39:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-02 10:39:11,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 10:39:11,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-02 10:39:11,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2018-12-02 10:39:11,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2018-12-02 10:39:11,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 10:39:11,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2018-12-02 10:39:11,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-02 10:39:11,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-02 10:39:11,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-12-02 10:39:11,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 10:39:11,409 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-12-02 10:39:11,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-12-02 10:39:11,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2018-12-02 10:39:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-02 10:39:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-12-02 10:39:11,410 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-12-02 10:39:11,410 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-12-02 10:39:11,410 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 10:39:11,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-12-02 10:39:11,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 10:39:11,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 10:39:11,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 10:39:11,410 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 10:39:11,410 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 10:39:11,411 INFO L794 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 284#L21-2 [2018-12-02 10:39:11,411 INFO L796 eck$LassoCheckResult]: Loop: 284#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 283#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 284#L21-2 [2018-12-02 10:39:11,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,411 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-12-02 10:39:11,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:11,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:11,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,411 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 10:39:11,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2018-12-02 10:39:11,414 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:11,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:11,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,414 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 10:39:11,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,418 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2018-12-02 10:39:11,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 10:39:11,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 10:39:11,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 10:39:11,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 10:39:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 10:39:11,443 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 10:39:11,443 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 10:39:11,443 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 10:39:11,443 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 10:39:11,443 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 10:39:11,443 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,443 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 10:39:11,443 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 10:39:11,443 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration4_Loop [2018-12-02 10:39:11,443 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 10:39:11,444 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 10:39:11,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,495 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 10:39:11,495 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,496 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:11,496 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:11,498 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 10:39:11,499 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,522 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:11,522 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:11,525 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 10:39:11,525 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,544 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:11,544 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:11,550 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 10:39:11,550 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Honda state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:11,566 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,583 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 10:39:11,583 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:11,591 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 10:39:11,591 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=99} Honda state: {ULTIMATE.start_main_~x~0=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 8, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 10:39:11,607 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3658a0a4-069b-4a93-a6ee-8d3e1a72879d/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 10:39:11,624 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 10:39:11,641 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 10:39:11,642 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 10:39:11,642 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 10:39:11,642 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 10:39:11,642 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 10:39:11,642 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 10:39:11,642 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 10:39:11,642 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 10:39:11,642 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 10:39:11,643 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration4_Loop [2018-12-02 10:39:11,643 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 10:39:11,643 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 10:39:11,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 10:39:11,704 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 10:39:11,705 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 10:39:11,705 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 10:39:11,706 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:11,706 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:11,706 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:11,706 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:11,706 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:11,706 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:11,706 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:11,707 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 10:39:11,707 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 10:39:11,708 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:11,708 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:11,708 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:11,708 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:11,708 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:11,708 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:11,708 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:11,709 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 10:39:11,709 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 10:39:11,709 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:11,709 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:11,709 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:11,709 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:11,710 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:11,710 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:11,710 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:11,711 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 10:39:11,712 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 10:39:11,712 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:11,712 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:11,712 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:11,712 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:11,712 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:11,712 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:11,713 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:11,714 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 10:39:11,715 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 10:39:11,715 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 10:39:11,715 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 10:39:11,715 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 10:39:11,715 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 10:39:11,715 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 10:39:11,715 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 10:39:11,716 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 10:39:11,717 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 10:39:11,719 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 10:39:11,719 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 10:39:11,719 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 10:39:11,719 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 10:39:11,719 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 10:39:11,720 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-02 10:39:11,720 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 10:39:11,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:39:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:39:11,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 10:39:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:39:11,742 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-02 10:39:11,742 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-12-02 10:39:11,748 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2018-12-02 10:39:11,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 10:39:11,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 10:39:11,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-02 10:39:11,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-02 10:39:11,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-02 10:39:11,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-02 10:39:11,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 10:39:11,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2018-12-02 10:39:11,750 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 10:39:11,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-12-02 10:39:11,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 10:39:11,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 10:39:11,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 10:39:11,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 10:39:11,750 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 10:39:11,750 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 10:39:11,750 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 10:39:11,750 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-02 10:39:11,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 10:39:11,751 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 10:39:11,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 10:39:11,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 10:39:11 BoogieIcfgContainer [2018-12-02 10:39:11,756 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 10:39:11,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 10:39:11,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 10:39:11,757 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 10:39:11,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:39:10" (3/4) ... [2018-12-02 10:39:11,760 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 10:39:11,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 10:39:11,761 INFO L168 Benchmark]: Toolchain (without parser) took 1774.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 957.1 MB in the beginning and 1.0 GB in the end (delta: -88.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2018-12-02 10:39:11,762 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 10:39:11,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.62 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 10:39:11,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.13 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 10:39:11,763 INFO L168 Benchmark]: Boogie Preprocessor took 10.23 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 10:39:11,763 INFO L168 Benchmark]: RCFGBuilder took 135.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-02 10:39:11,764 INFO L168 Benchmark]: BuchiAutomizer took 1473.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2018-12-02 10:39:11,764 INFO L168 Benchmark]: Witness Printer took 3.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 10:39:11,766 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 131.62 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 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 17.13 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.23 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1473.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 21 SDslu, 13 SDs, 0 SdLazy, 41 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div463 bol100 ite100 ukn100 eq148 hnf47 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...