./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 aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/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_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/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-aa41828 [2018-11-22 23:07:38,526 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:07:38,527 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:07:38,534 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:07:38,534 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:07:38,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:07:38,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:07:38,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:07:38,538 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:07:38,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:07:38,539 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:07:38,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:07:38,540 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:07:38,541 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:07:38,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:07:38,542 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:07:38,543 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:07:38,544 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:07:38,545 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:07:38,546 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:07:38,547 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:07:38,548 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:07:38,549 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:07:38,549 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:07:38,550 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:07:38,550 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:07:38,551 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:07:38,551 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:07:38,552 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:07:38,553 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:07:38,553 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:07:38,553 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:07:38,553 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:07:38,554 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:07:38,554 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:07:38,555 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:07:38,555 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-22 23:07:38,565 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:07:38,565 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:07:38,566 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 23:07:38,566 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 23:07:38,567 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 23:07:38,567 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 23:07:38,567 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 23:07:38,567 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 23:07:38,567 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 23:07:38,567 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 23:07:38,568 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 23:07:38,568 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:07:38,568 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 23:07:38,568 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 23:07:38,568 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:07:38,568 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 23:07:38,569 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:07:38,569 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 23:07:38,569 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 23:07:38,569 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 23:07:38,569 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 23:07:38,569 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:07:38,569 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 23:07:38,570 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:07:38,570 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 23:07:38,570 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:07:38,570 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:07:38,570 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 23:07:38,570 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:07:38,570 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 23:07:38,571 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 23:07:38,571 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 23:07:38,571 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_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/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 [2018-11-22 23:07:38,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:07:38,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:07:38,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:07:38,606 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:07:38,607 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:07:38,607 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/../../sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-22 23:07:38,651 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/data/9ccd1060e/cae9bf3bee6a495787096a3a96e71741/FLAG43c76fef9 [2018-11-22 23:07:38,955 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:07:38,955 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-22 23:07:38,959 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/data/9ccd1060e/cae9bf3bee6a495787096a3a96e71741/FLAG43c76fef9 [2018-11-22 23:07:38,968 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/data/9ccd1060e/cae9bf3bee6a495787096a3a96e71741 [2018-11-22 23:07:38,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:07:38,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:07:38,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:07:38,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:07:38,974 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:07:38,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:38" (1/1) ... [2018-11-22 23:07:38,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd9ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:38, skipping insertion in model container [2018-11-22 23:07:38,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:07:38" (1/1) ... [2018-11-22 23:07:38,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:07:38,994 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:07:39,099 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:07:39,101 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:07:39,111 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:07:39,119 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:07:39,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39 WrapperNode [2018-11-22 23:07:39,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:07:39,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:07:39,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:07:39,120 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:07:39,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:07:39,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:07:39,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:07:39,137 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:07:39,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... [2018-11-22 23:07:39,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:07:39,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:07:39,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:07:39,149 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:07:39,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:07:39,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:07:39,314 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:07:39,315 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-22 23:07:39,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:39 BoogieIcfgContainer [2018-11-22 23:07:39,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:07:39,315 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 23:07:39,315 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 23:07:39,317 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 23:07:39,318 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:07:39,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 11:07:38" (1/3) ... [2018-11-22 23:07:39,319 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1713de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 11:07:39, skipping insertion in model container [2018-11-22 23:07:39,319 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:07:39,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:07:39" (2/3) ... [2018-11-22 23:07:39,320 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1713de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 11:07:39, skipping insertion in model container [2018-11-22 23:07:39,320 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:07:39,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:39" (3/3) ... [2018-11-22 23:07:39,321 INFO L375 chiAutomizerObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-11-22 23:07:39,364 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 23:07:39,364 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 23:07:39,364 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 23:07:39,364 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 23:07:39,365 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:07:39,365 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:07:39,365 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 23:07:39,365 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:07:39,365 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 23:07:39,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-22 23:07:39,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:07:39,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:39,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:39,396 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-22 23:07:39,396 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:07:39,396 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 23:07:39,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-22 23:07:39,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:07:39,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:39,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:39,398 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-22 23:07:39,398 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:07:39,403 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L17true assume !!(main_~x~0 > -100); 6#L18true assume !!(main_~x~0 < 200); 7#L19true assume !!(main_~z~0 > 100); 9#L20true assume !!(main_~z~0 < 200); 11#L24-2true [2018-11-22 23:07:39,403 INFO L796 eck$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 [2018-11-22 23:07:39,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:39,407 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2018-11-22 23:07:39,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:39,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:39,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:39,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:39,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 1 times [2018-11-22 23:07:39,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:39,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:39,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:39,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:39,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2018-11-22 23:07:39,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:39,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:39,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:39,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,541 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:39,542 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:39,542 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:39,542 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:39,542 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:07:39,542 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:39,542 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:39,542 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:39,542 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-22 23:07:39,543 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:39,543 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:39,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:39,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:39,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:39,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:39,710 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:39,710 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:39,713 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:39,713 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:39,730 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:07:39,730 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:39,757 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:07:39,758 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:39,758 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:39,758 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:39,758 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:39,758 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:07:39,758 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:39,759 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:39,759 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:39,759 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-22 23:07:39,759 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:39,759 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:39,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:39,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:39,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:39,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:39,835 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:39,839 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:07:39,841 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:39,842 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:39,842 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:39,842 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:39,842 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:39,843 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:39,844 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:39,845 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:39,850 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:07:39,855 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:07:39,855 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 23:07:39,857 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:07:39,857 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:07:39,858 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:07:39,858 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-22 23:07:39,859 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:07:39,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:39,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:39,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:39,920 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 [2018-11-22 23:07:39,921 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2018-11-22 23:07:39,952 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. [2018-11-22 23:07:39,952 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 [2018-11-22 23:07:39,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:07:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2018-11-22 23:07:39,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 23:07:39,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:39,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-22 23:07:39,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:39,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-22 23:07:39,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:39,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 55 transitions. [2018-11-22 23:07:39,959 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:07:39,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 11 states and 14 transitions. [2018-11-22 23:07:39,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-22 23:07:39,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-22 23:07:39,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-22 23:07:39,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:07:39,963 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-22 23:07:39,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-22 23:07:39,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-22 23:07:39,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-22 23:07:39,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-22 23:07:39,980 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-22 23:07:39,980 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-22 23:07:39,980 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 23:07:39,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-22 23:07:39,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:07:39,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:39,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:39,981 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-22 23:07:39,981 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:07:39,981 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 106#L17 assume !!(main_~x~0 > -100); 112#L18 assume !!(main_~x~0 < 200); 113#L19 assume !!(main_~z~0 > 100); 114#L20 assume !!(main_~z~0 < 200); 115#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 111#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 107#L24-2 [2018-11-22 23:07:39,981 INFO L796 eck$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 [2018-11-22 23:07:39,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:39,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 1 times [2018-11-22 23:07:39,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:39,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:39,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:39,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:39,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 2 times [2018-11-22 23:07:39,990 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:39,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:39,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:39,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:39,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:39,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954034, now seen corresponding path program 1 times [2018-11-22 23:07:39,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:39,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:39,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:39,996 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:39,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,023 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:40,023 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:40,023 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:40,023 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:40,023 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:07:40,023 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,023 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:40,023 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:40,023 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-22 23:07:40,024 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:40,024 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:40,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,085 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:40,085 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,091 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,091 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,105 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:40,105 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-128, ULTIMATE.start_main_#t~nondet3=-128} Honda state: {ULTIMATE.start_main_~tmp~0=-128, ULTIMATE.start_main_#t~nondet3=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,129 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,129 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,132 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:40,132 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_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,154 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,154 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,175 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:07:40,175 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,210 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:07:40,211 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:40,211 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:40,211 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:40,211 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:40,212 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:07:40,212 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,212 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:40,212 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:40,212 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-22 23:07:40,212 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:40,212 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:40,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,279 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:40,279 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:07:40,280 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:40,281 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:40,281 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:40,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:40,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:40,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:40,282 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:40,282 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:40,283 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:40,284 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:40,284 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:40,284 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:40,285 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:40,285 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:40,285 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:40,285 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:40,285 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:40,290 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:40,290 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:40,291 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:40,291 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:40,291 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:40,291 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:40,291 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:40,292 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:40,292 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:40,295 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:07:40,298 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:07:40,298 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 23:07:40,299 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:07:40,299 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:07:40,299 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:07:40,299 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-22 23:07:40,299 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:07:40,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:40,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:40,331 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 [2018-11-22 23:07:40,331 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-22 23:07:40,353 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. [2018-11-22 23:07:40,354 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 [2018-11-22 23:07:40,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:07:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-22 23:07:40,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-22 23:07:40,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:40,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-22 23:07:40,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:40,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-22 23:07:40,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:40,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-11-22 23:07:40,356 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:07:40,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2018-11-22 23:07:40,356 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-22 23:07:40,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-22 23:07:40,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2018-11-22 23:07:40,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:07:40,357 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-22 23:07:40,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2018-11-22 23:07:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-22 23:07:40,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-22 23:07:40,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2018-11-22 23:07:40,358 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-22 23:07:40,358 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-22 23:07:40,358 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 23:07:40,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2018-11-22 23:07:40,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-22 23:07:40,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:40,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:40,359 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-22 23:07:40,359 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:07:40,360 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 180#L17 assume !!(main_~x~0 > -100); 186#L18 assume !!(main_~x~0 < 200); 187#L19 assume !!(main_~z~0 > 100); 189#L20 assume !!(main_~z~0 < 200); 190#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 185#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 188#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 191#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 181#L24-2 [2018-11-22 23:07:40,360 INFO L796 eck$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 [2018-11-22 23:07:40,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954036, now seen corresponding path program 2 times [2018-11-22 23:07:40,360 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:40,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:40,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:40,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 3 times [2018-11-22 23:07:40,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:40,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:40,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,371 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:40,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1084083785, now seen corresponding path program 2 times [2018-11-22 23:07:40,376 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:40,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:40,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,377 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:40,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,410 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:40,410 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:40,410 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:40,410 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:40,410 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:07:40,410 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,410 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:40,411 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:40,411 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-22 23:07:40,411 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:40,411 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:40,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,487 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:40,487 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,489 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,489 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,504 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:40,504 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_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,511 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,511 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,513 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:40,513 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_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,527 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,527 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,556 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:07:40,556 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,573 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:07:40,574 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:40,574 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:40,574 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:40,574 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:40,574 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:07:40,574 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,575 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:40,575 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:40,575 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-22 23:07:40,575 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:40,575 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:40,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,663 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:40,663 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:07:40,664 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:40,664 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:40,664 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:40,665 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:40,665 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:40,665 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:40,665 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:40,665 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:40,667 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:40,668 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:40,668 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:40,668 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:40,668 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:40,669 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:40,669 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:40,669 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:40,669 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:40,670 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:40,670 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:40,670 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:40,671 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:40,671 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:40,671 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:40,671 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:40,671 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:40,672 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:40,674 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:07:40,675 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:07:40,675 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-22 23:07:40,676 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:07:40,676 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:07:40,676 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:07:40,676 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-22 23:07:40,676 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:07:40,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,690 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,694 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:40,699 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 [2018-11-22 23:07:40,700 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-22 23:07:40,706 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. [2018-11-22 23:07:40,707 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 [2018-11-22 23:07:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:07:40,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-22 23:07:40,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-22 23:07:40,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:40,707 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:07:40,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:40,728 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 [2018-11-22 23:07:40,728 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-22 23:07:40,734 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. [2018-11-22 23:07:40,735 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 [2018-11-22 23:07:40,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:07:40,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-22 23:07:40,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-22 23:07:40,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:40,735 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:07:40,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:40,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:40,757 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 [2018-11-22 23:07:40,757 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-22 23:07:40,765 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. [2018-11-22 23:07:40,765 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 [2018-11-22 23:07:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:07:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-22 23:07:40,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-22 23:07:40,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:40,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-22 23:07:40,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:40,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-22 23:07:40,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:40,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2018-11-22 23:07:40,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 23:07:40,768 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 23 transitions. [2018-11-22 23:07:40,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-22 23:07:40,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-22 23:07:40,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2018-11-22 23:07:40,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:07:40,768 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-22 23:07:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2018-11-22 23:07:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 9. [2018-11-22 23:07:40,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-22 23:07:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-11-22 23:07:40,770 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-22 23:07:40,770 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-22 23:07:40,770 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 23:07:40,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2018-11-22 23:07:40,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 23:07:40,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:07:40,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:07:40,771 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-22 23:07:40,771 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:07:40,771 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 379#L17 assume !!(main_~x~0 > -100); 384#L18 assume !!(main_~x~0 < 200); 385#L19 assume !!(main_~z~0 > 100); 386#L20 assume !!(main_~z~0 < 200); 380#L24-2 [2018-11-22 23:07:40,771 INFO L796 eck$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 [2018-11-22 23:07:40,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,771 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 2 times [2018-11-22 23:07:40,771 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:40,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:40,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,772 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:40,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2018-11-22 23:07:40,777 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:40,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:40,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,778 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:07:40,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:40,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 3 times [2018-11-22 23:07:40,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:07:40,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:07:40,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:07:40,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:07:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:07:40,804 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:40,804 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:40,804 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:40,804 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:40,804 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:07:40,804 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,804 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:40,804 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:40,804 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-22 23:07:40,804 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:40,804 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:40,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:40,876 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:40,876 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,887 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,887 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,889 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:40,889 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_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,912 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,912 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,914 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:40,914 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_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,937 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,937 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:40,943 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:07:40,944 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_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,960 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:07:40,960 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be0000a4-ad4e-45b1-8e74-287dcb1a7c49/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:40,976 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:07:40,977 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:07:41,002 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:07:41,004 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:07:41,004 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:07:41,004 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:07:41,004 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:07:41,004 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:07:41,004 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:07:41,004 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:07:41,004 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:07:41,004 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-22 23:07:41,004 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:07:41,004 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:07:41,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:41,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:41,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:41,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:41,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:07:41,105 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:07:41,106 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:07:41,106 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:41,106 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:41,107 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:41,107 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:41,107 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:41,107 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:41,107 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:41,107 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:41,108 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:41,108 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 [2018-11-22 23:07:41,108 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:41,108 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:41,108 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:41,108 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:41,108 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:41,108 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:41,108 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:41,109 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:07:41,109 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:07:41,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:07:41,110 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:07:41,110 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:07:41,110 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:07:41,110 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:07:41,110 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:07:41,111 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:07:41,112 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:07:41,114 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:07:41,114 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 23:07:41,115 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:07:41,115 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:07:41,115 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:07:41,115 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-22 23:07:41,115 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:07:41,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:07:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:41,130 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:07:41,132 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:07:41,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:07:41,137 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 [2018-11-22 23:07:41,137 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-22 23:07:41,142 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. [2018-11-22 23:07:41,142 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 [2018-11-22 23:07:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:07:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-22 23:07:41,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-22 23:07:41,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:41,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-22 23:07:41,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:41,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-22 23:07:41,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:07:41,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2018-11-22 23:07:41,144 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 23:07:41,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-22 23:07:41,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 23:07:41,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 23:07:41,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 23:07:41,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 23:07:41,145 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:07:41,145 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:07:41,145 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:07:41,145 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-22 23:07:41,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 23:07:41,145 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 23:07:41,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 23:07:41,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 11:07:41 BoogieIcfgContainer [2018-11-22 23:07:41,149 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 23:07:41,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:07:41,150 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:07:41,150 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:07:41,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:07:39" (3/4) ... [2018-11-22 23:07:41,152 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 23:07:41,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:07:41,153 INFO L168 Benchmark]: Toolchain (without parser) took 2181.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -122.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-22 23:07:41,154 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:07:41,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.58 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:07:41,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.36 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:07:41,155 INFO L168 Benchmark]: Boogie Preprocessor took 11.72 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:07:41,155 INFO L168 Benchmark]: RCFGBuilder took 166.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:07:41,155 INFO L168 Benchmark]: BuchiAutomizer took 1833.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2018-11-22 23:07:41,155 INFO L168 Benchmark]: Witness Printer took 2.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:07:41,158 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.58 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 17.36 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.72 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 166.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -173.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1833.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 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 1.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. 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: sat Degree: 0 Time: 18ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 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...