./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02_true-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_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 77773b6d98c13684866533d0b64942a0b1025f7d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:47:00,788 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 06:47:00,789 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 06:47:00,795 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 06:47:00,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 06:47:00,796 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 06:47:00,796 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 06:47:00,797 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 06:47:00,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 06:47:00,798 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 06:47:00,799 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 06:47:00,799 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 06:47:00,799 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 06:47:00,800 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 06:47:00,800 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 06:47:00,801 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 06:47:00,801 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 06:47:00,802 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 06:47:00,803 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 06:47:00,804 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 06:47:00,804 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 06:47:00,805 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 06:47:00,806 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 06:47:00,806 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 06:47:00,806 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 06:47:00,806 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 06:47:00,807 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 06:47:00,807 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 06:47:00,808 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 06:47:00,808 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 06:47:00,808 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 06:47:00,809 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 06:47:00,809 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 06:47:00,809 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 06:47:00,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 06:47:00,810 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 06:47:00,810 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-02 06:47:00,818 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 06:47:00,818 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 06:47:00,818 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 06:47:00,818 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 06:47:00,819 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 06:47:00,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 06:47:00,819 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 06:47:00,820 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 06:47:00,820 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 06:47:00,821 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 06:47:00,821 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 06:47:00,821 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 06:47:00,821 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 06:47:00,821 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_de1af938-895b-4837-b299-14dabc0c994a/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 -> 77773b6d98c13684866533d0b64942a0b1025f7d [2018-12-02 06:47:00,839 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 06:47:00,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 06:47:00,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 06:47:00,852 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 06:47:00,852 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 06:47:00,853 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/../../sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-12-02 06:47:00,889 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/data/c70b03c22/83fb5fb00e3242c1a5b6c4cdcf887f52/FLAG788108e30 [2018-12-02 06:47:01,310 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 06:47:01,310 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-12-02 06:47:01,313 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/data/c70b03c22/83fb5fb00e3242c1a5b6c4cdcf887f52/FLAG788108e30 [2018-12-02 06:47:01,322 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/data/c70b03c22/83fb5fb00e3242c1a5b6c4cdcf887f52 [2018-12-02 06:47:01,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 06:47:01,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 06:47:01,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 06:47:01,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 06:47:01,327 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 06:47:01,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b4367c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01, skipping insertion in model container [2018-12-02 06:47:01,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 06:47:01,343 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 06:47:01,427 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:47:01,430 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 06:47:01,439 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:47:01,447 INFO L195 MainTranslator]: Completed translation [2018-12-02 06:47:01,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01 WrapperNode [2018-12-02 06:47:01,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 06:47:01,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 06:47:01,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 06:47:01,447 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 06:47:01,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 06:47:01,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 06:47:01,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 06:47:01,465 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 06:47:01,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... [2018-12-02 06:47:01,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 06:47:01,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 06:47:01,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 06:47:01,504 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 06:47:01,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 06:47:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 06:47:01,615 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 06:47:01,616 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-02 06:47:01,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:47:01 BoogieIcfgContainer [2018-12-02 06:47:01,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 06:47:01,616 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 06:47:01,616 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 06:47:01,618 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 06:47:01,619 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 06:47:01,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 06:47:01" (1/3) ... [2018-12-02 06:47:01,620 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c293c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 06:47:01, skipping insertion in model container [2018-12-02 06:47:01,620 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 06:47:01,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:47:01" (2/3) ... [2018-12-02 06:47:01,620 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c293c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 06:47:01, skipping insertion in model container [2018-12-02 06:47:01,620 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 06:47:01,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:47:01" (3/3) ... [2018-12-02 06:47:01,621 INFO L375 chiAutomizerObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-12-02 06:47:01,653 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 06:47:01,653 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 06:47:01,653 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 06:47:01,654 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 06:47:01,654 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 06:47:01,654 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 06:47:01,654 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 06:47:01,654 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 06:47:01,654 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 06:47:01,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-12-02 06:47:01,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 06:47:01,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 06:47:01,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 06:47:01,678 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-02 06:47:01,678 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 06:47:01,678 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 06:47:01,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-12-02 06:47:01,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 06:47:01,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 06:47:01,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 06:47:01,680 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-02 06:47:01,680 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 06:47:01,684 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L17true assume !!(main_~x~0 > -100); 6#L18true assume !!(main_~x~0 < 200); 7#L19true assume !!(main_~z~0 > 100); 9#L20true assume !!(main_~z~0 < 200); 11#L24-2true [2018-12-02 06:47:01,685 INFO L796 eck$LassoCheckResult]: Loop: 11#L24-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 14#L24true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 11#L24-2true [2018-12-02 06:47:01,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:01,688 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2018-12-02 06:47:01,690 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:01,690 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:01,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:01,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:47:01,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:01,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:01,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 1 times [2018-12-02 06:47:01,758 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:01,758 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:01,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:01,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:47:01,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:01,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:01,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2018-12-02 06:47:01,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:01,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:01,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:01,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:47:01,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:01,813 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 06:47:01,813 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 06:47:01,813 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 06:47:01,814 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 06:47:01,814 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 06:47:01,814 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:01,814 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 06:47:01,814 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 06:47:01,814 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-02 06:47:01,814 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 06:47:01,814 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 06:47:01,833 INFO 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 06:47:01,842 INFO 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 06:47:01,844 INFO 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 06:47:01,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:01,941 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 06:47:01,941 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:01,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:01,945 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:01,957 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:01,957 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_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:01,972 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:01,972 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:01,974 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:01,974 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:01,989 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:01,989 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,004 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:02,004 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_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,006 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:02,007 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,024 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 06:47:02,024 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,040 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 06:47:02,041 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 06:47:02,042 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 06:47:02,042 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 06:47:02,042 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 06:47:02,042 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 06:47:02,042 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:02,042 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 06:47:02,042 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 06:47:02,042 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-02 06:47:02,042 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 06:47:02,042 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 06:47:02,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,050 INFO 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 06:47:02,102 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 06:47:02,106 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 06:47:02,108 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 06:47:02,109 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,109 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,109 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,110 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,110 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,112 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,112 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,120 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:02,121 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 06:47:02,121 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,121 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,122 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,122 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,122 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,122 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,122 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,123 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:02,124 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 06:47:02,124 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,124 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,125 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,125 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,125 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,125 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,125 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,126 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:02,127 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-02 06:47:02,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,127 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,127 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,127 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,127 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,128 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,128 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,132 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 06:47:02,134 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 06:47:02,134 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 06:47:02,135 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 06:47:02,136 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 06:47:02,136 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 06:47:02,136 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 06:47:02,137 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 06:47:02,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,188 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 06:47:02,198 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 06:47:02,198 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2018-12-02 06:47:02,227 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 42 states and 55 transitions. Complement of second has 8 states. [2018-12-02 06:47:02,227 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 06:47:02,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 06:47:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2018-12-02 06:47:02,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 06:47:02,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-02 06:47:02,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 4 letters. [2018-12-02 06:47:02,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 55 transitions. [2018-12-02 06:47:02,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 06:47:02,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 11 states and 14 transitions. [2018-12-02 06:47:02,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-02 06:47:02,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-12-02 06:47:02,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-12-02 06:47:02,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 06:47:02,237 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-12-02 06:47:02,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-12-02 06:47:02,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-02 06:47:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-02 06:47:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-12-02 06:47:02,253 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-12-02 06:47:02,253 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-12-02 06:47:02,253 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 06:47:02,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-12-02 06:47:02,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 06:47:02,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 06:47:02,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 06:47:02,253 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:47:02,253 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 06:47:02,254 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 106#L17 assume !!(main_~x~0 > -100); 112#L18 assume !!(main_~x~0 < 200); 113#L19 assume !!(main_~z~0 > 100); 114#L20 assume !!(main_~z~0 < 200); 115#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 111#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 107#L24-2 [2018-12-02 06:47:02,254 INFO L796 eck$LassoCheckResult]: Loop: 107#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 108#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 107#L24-2 [2018-12-02 06:47:02,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 1 times [2018-12-02 06:47:02,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:47:02,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 2 times [2018-12-02 06:47:02,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:47:02,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954034, now seen corresponding path program 1 times [2018-12-02 06:47:02,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,266 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 06:47:02,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,287 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 06:47:02,287 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 06:47:02,287 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 06:47:02,287 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 06:47:02,287 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 06:47:02,287 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:02,287 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 06:47:02,287 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 06:47:02,287 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-02 06:47:02,287 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 06:47:02,287 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 06:47:02,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,341 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 06:47:02,341 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:02,343 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,358 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:02,358 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_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,361 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:02,361 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,368 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:02,368 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_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,383 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:02,383 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,385 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:02,386 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,401 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:02,401 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,419 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 06:47:02,419 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,435 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 06:47:02,436 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 06:47:02,436 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 06:47:02,436 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 06:47:02,436 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 06:47:02,436 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 06:47:02,436 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:02,436 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 06:47:02,436 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 06:47:02,436 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-02 06:47:02,437 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 06:47:02,437 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 06:47:02,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,484 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 06:47:02,485 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 06:47:02,485 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 06:47:02,486 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,486 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,486 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,486 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,486 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,487 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,487 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,488 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:02,488 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 06:47:02,488 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,489 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,489 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,489 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,489 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,489 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,490 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,490 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:02,491 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 06:47:02,491 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,491 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,491 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,492 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,492 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,492 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,492 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,495 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:02,496 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 06:47:02,496 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,496 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,497 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,497 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,497 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,497 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,497 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,500 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 06:47:02,501 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 06:47:02,502 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 06:47:02,502 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 06:47:02,502 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 06:47:02,502 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 06:47:02,502 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 06:47:02,503 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 06:47:02,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,543 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 06:47:02,543 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 06:47:02,543 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-02 06:47:02,557 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2018-12-02 06:47:02,558 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 06:47:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 06:47:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-02 06:47:02,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-02 06:47:02,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-02 06:47:02,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2018-12-02 06:47:02,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-12-02 06:47:02,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 06:47:02,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2018-12-02 06:47:02,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-12-02 06:47:02,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-02 06:47:02,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2018-12-02 06:47:02,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 06:47:02,561 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-12-02 06:47:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2018-12-02 06:47:02,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-02 06:47:02,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-02 06:47:02,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2018-12-02 06:47:02,563 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-12-02 06:47:02,563 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-12-02 06:47:02,563 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 06:47:02,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2018-12-02 06:47:02,564 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-02 06:47:02,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 06:47:02,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 06:47:02,564 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-12-02 06:47:02,564 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 06:47:02,564 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 180#L17 assume !!(main_~x~0 > -100); 186#L18 assume !!(main_~x~0 < 200); 187#L19 assume !!(main_~z~0 > 100); 189#L20 assume !!(main_~z~0 < 200); 190#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 185#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 188#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 191#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 181#L24-2 [2018-12-02 06:47:02,564 INFO L796 eck$LassoCheckResult]: Loop: 181#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 182#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 181#L24-2 [2018-12-02 06:47:02,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954036, now seen corresponding path program 2 times [2018-12-02 06:47:02,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:47:02,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 3 times [2018-12-02 06:47:02,575 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,576 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 06:47:02,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1084083785, now seen corresponding path program 2 times [2018-12-02 06:47:02,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,580 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 06:47:02,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,607 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 06:47:02,607 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 06:47:02,607 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 06:47:02,607 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 06:47:02,608 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 06:47:02,608 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:02,608 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 06:47:02,608 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 06:47:02,608 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-12-02 06:47:02,608 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 06:47:02,608 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 06:47:02,609 INFO 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 06:47:02,610 INFO 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 06:47:02,614 INFO 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 06:47:02,615 INFO 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 06:47:02,651 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 06:47:02,651 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,653 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:02,653 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,669 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:02,669 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_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,672 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:02,672 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,689 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 06:47:02,689 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,705 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 06:47:02,705 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 06:47:02,706 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 06:47:02,706 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 06:47:02,706 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 06:47:02,706 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 06:47:02,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:02,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 06:47:02,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 06:47:02,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-12-02 06:47:02,706 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 06:47:02,706 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 06:47:02,707 INFO 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 06:47:02,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,775 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 06:47:02,775 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 06:47:02,775 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 06:47:02,775 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,776 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,776 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,776 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,776 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,776 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,776 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,777 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:02,777 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 06:47:02,778 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:02,778 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:02,778 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:02,778 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:02,778 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:02,779 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:02,779 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:02,781 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 06:47:02,782 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 06:47:02,782 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 06:47:02,783 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 06:47:02,783 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 06:47:02,783 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 06:47:02,783 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 06:47:02,783 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 06:47:02,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,809 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 06:47:02,810 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 06:47:02,810 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 06:47:02,816 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2018-12-02 06:47:02,817 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 06:47:02,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 06:47:02,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-02 06:47:02,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-02 06:47:02,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,817 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 06:47:02,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,830 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,843 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 06:47:02,844 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 06:47:02,844 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 06:47:02,849 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2018-12-02 06:47:02,850 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 06:47:02,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 06:47:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-12-02 06:47:02,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-02 06:47:02,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,850 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 06:47:02,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:02,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:02,875 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 06:47:02,875 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 06:47:02,875 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-12-02 06:47:02,887 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 19 states and 27 transitions. Complement of second has 4 states. [2018-12-02 06:47:02,887 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 06:47:02,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 06:47:02,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-02 06:47:02,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-02 06:47:02,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-12-02 06:47:02,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 4 letters. [2018-12-02 06:47:02,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:02,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2018-12-02 06:47:02,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 06:47:02,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 23 transitions. [2018-12-02 06:47:02,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-02 06:47:02,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-02 06:47:02,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2018-12-02 06:47:02,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 06:47:02,891 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-12-02 06:47:02,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2018-12-02 06:47:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 9. [2018-12-02 06:47:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-02 06:47:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-12-02 06:47:02,891 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-12-02 06:47:02,892 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-12-02 06:47:02,892 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 06:47:02,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2018-12-02 06:47:02,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 06:47:02,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 06:47:02,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 06:47:02,892 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-02 06:47:02,892 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-02 06:47:02,892 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 379#L17 assume !!(main_~x~0 > -100); 384#L18 assume !!(main_~x~0 < 200); 385#L19 assume !!(main_~z~0 > 100); 386#L20 assume !!(main_~z~0 < 200); 380#L24-2 [2018-12-02 06:47:02,892 INFO L796 eck$LassoCheckResult]: Loop: 380#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 382#L24 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; 380#L24-2 [2018-12-02 06:47:02,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,893 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 2 times [2018-12-02 06:47:02,893 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,893 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 06:47:02,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2018-12-02 06:47:02,898 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,899 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 06:47:02,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:02,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 3 times [2018-12-02 06:47:02,904 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:47:02,904 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:47:02,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:47:02,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:47:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:47:02,936 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 06:47:02,936 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 06:47:02,936 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 06:47:02,936 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 06:47:02,936 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 06:47:02,936 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:02,936 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 06:47:02,936 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 06:47:02,936 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-12-02 06:47:02,936 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 06:47:02,936 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 06:47:02,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:02,987 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 06:47:02,987 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:02,988 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:02,988 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:02,990 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:02,990 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_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:03,005 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:03,005 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:03,008 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:03,008 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_de1af938-895b-4837-b299-14dabc0c994a/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 06:47:03,022 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:03,022 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:03,028 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-02 06:47:03,028 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_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:03,043 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 06:47:03,043 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_de1af938-895b-4837-b299-14dabc0c994a/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:03,059 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 06:47:03,059 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 06:47:03,075 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 06:47:03,076 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 06:47:03,076 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 06:47:03,076 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 06:47:03,076 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 06:47:03,076 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 06:47:03,076 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 06:47:03,076 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 06:47:03,076 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 06:47:03,076 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-12-02 06:47:03,076 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 06:47:03,076 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 06:47:03,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:03,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:03,079 INFO 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 06:47:03,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 06:47:03,085 INFO 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 06:47:03,126 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 06:47:03,126 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 06:47:03,126 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 06:47:03,126 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:03,126 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:03,126 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:03,127 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:03,127 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:03,127 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:03,127 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:03,127 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:03,128 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 06:47:03,128 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:03,128 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:03,128 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:03,128 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:03,128 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:03,128 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:03,128 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:03,129 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 06:47:03,129 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 06:47:03,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 06:47:03,129 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 06:47:03,129 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 06:47:03,129 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 06:47:03,129 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 06:47:03,130 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 06:47:03,130 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 06:47:03,131 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 06:47:03,132 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 06:47:03,132 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 06:47:03,132 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 06:47:03,132 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 06:47:03,133 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 06:47:03,133 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 06:47:03,133 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 06:47:03,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:47:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:03,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:47:03,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:47:03,152 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 06:47:03,152 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 06:47:03,152 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-12-02 06:47:03,157 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 15 states and 21 transitions. Complement of second has 4 states. [2018-12-02 06:47:03,157 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 06:47:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 06:47:03,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-02 06:47:03,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-02 06:47:03,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:03,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-02 06:47:03,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:03,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2018-12-02 06:47:03,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 06:47:03,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2018-12-02 06:47:03,159 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 06:47:03,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-12-02 06:47:03,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 06:47:03,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 06:47:03,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 06:47:03,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 06:47:03,160 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 06:47:03,160 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 06:47:03,160 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 06:47:03,160 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-02 06:47:03,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 06:47:03,160 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 06:47:03,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 06:47:03,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 06:47:03 BoogieIcfgContainer [2018-12-02 06:47:03,164 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 06:47:03,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 06:47:03,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 06:47:03,165 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 06:47:03,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:47:01" (3/4) ... [2018-12-02 06:47:03,168 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 06:47:03,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 06:47:03,169 INFO L168 Benchmark]: Toolchain (without parser) took 1845.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -78.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-12-02 06:47:03,170 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 06:47:03,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 06:47:03,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.45 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 06:47:03,171 INFO L168 Benchmark]: Boogie Preprocessor took 38.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-02 06:47:03,171 INFO L168 Benchmark]: RCFGBuilder took 112.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-02 06:47:03,172 INFO L168 Benchmark]: BuchiAutomizer took 1547.98 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2018-12-02 06:47:03,172 INFO L168 Benchmark]: Witness Printer took 3.59 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 06:47:03,174 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.45 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 112.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1547.98 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.59 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 1.5s 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 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 53 SDslu, 11 SDs, 0 SdLazy, 42 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: 13ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 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...