./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/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 ca10e259bac305ecd55fc4a34d201bc0894aa533 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:54:46,656 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:54:46,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:54:46,663 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:54:46,663 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:54:46,664 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:54:46,664 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:54:46,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:54:46,666 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:54:46,667 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:54:46,667 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:54:46,667 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:54:46,668 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:54:46,668 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:54:46,669 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:54:46,669 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:54:46,670 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:54:46,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:54:46,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:54:46,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:54:46,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:54:46,673 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:54:46,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:54:46,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:54:46,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:54:46,675 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:54:46,675 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:54:46,676 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:54:46,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:54:46,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:54:46,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:54:46,677 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:54:46,677 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:54:46,677 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:54:46,678 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:54:46,678 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:54:46,678 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 23:54:46,686 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:54:46,686 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:54:46,687 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 23:54:46,687 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 23:54:46,687 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 23:54:46,687 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 23:54:46,687 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 23:54:46,687 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 23:54:46,687 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 23:54:46,688 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 23:54:46,688 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 23:54:46,689 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 23:54:46,689 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 23:54:46,689 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 23:54:46,690 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 23:54:46,690 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_a9b0b19d-42e5-44d4-846c-85058306bd4f/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 -> ca10e259bac305ecd55fc4a34d201bc0894aa533 [2018-12-08 23:54:46,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:54:46,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:54:46,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:54:46,720 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:54:46,720 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:54:46,721 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2018-12-08 23:54:46,758 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/data/6a0165c20/ee19c2255a7a4412890a33941bc9dbf0/FLAGd09b2943b [2018-12-08 23:54:47,162 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:54:47,162 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2018-12-08 23:54:47,165 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/data/6a0165c20/ee19c2255a7a4412890a33941bc9dbf0/FLAGd09b2943b [2018-12-08 23:54:47,173 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/data/6a0165c20/ee19c2255a7a4412890a33941bc9dbf0 [2018-12-08 23:54:47,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:54:47,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:54:47,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:54:47,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:54:47,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:54:47,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d388261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47, skipping insertion in model container [2018-12-08 23:54:47,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:54:47,193 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:54:47,277 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:54:47,280 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:54:47,289 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:54:47,297 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:54:47,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47 WrapperNode [2018-12-08 23:54:47,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:54:47,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:54:47,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:54:47,298 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:54:47,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:54:47,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:54:47,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:54:47,317 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:54:47,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... [2018-12-08 23:54:47,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:54:47,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:54:47,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:54:47,328 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:54:47,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:54:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:54:47,480 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:54:47,480 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 23:54:47,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:54:47 BoogieIcfgContainer [2018-12-08 23:54:47,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:54:47,481 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 23:54:47,481 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 23:54:47,483 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 23:54:47,484 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 23:54:47,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 11:54:47" (1/3) ... [2018-12-08 23:54:47,485 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bd76424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 11:54:47, skipping insertion in model container [2018-12-08 23:54:47,485 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 23:54:47,485 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:54:47" (2/3) ... [2018-12-08 23:54:47,485 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bd76424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 11:54:47, skipping insertion in model container [2018-12-08 23:54:47,485 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 23:54:47,485 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:54:47" (3/3) ... [2018-12-08 23:54:47,486 INFO L375 chiAutomizerObserver]: Analyzing ICFG half_2_true-unreach-call_true-termination.i [2018-12-08 23:54:47,516 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 23:54:47,517 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 23:54:47,517 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 23:54:47,517 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 23:54:47,517 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:54:47,517 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:54:47,517 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 23:54:47,517 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:54:47,517 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 23:54:47,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-12-08 23:54:47,536 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-08 23:54:47,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 23:54:47,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 23:54:47,540 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 23:54:47,540 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 23:54:47,540 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 23:54:47,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-12-08 23:54:47,541 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-08 23:54:47,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 23:54:47,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 23:54:47,541 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 23:54:47,542 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 23:54:47,546 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L13true assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 13#L16-2true [2018-12-08 23:54:47,546 INFO L796 eck$LassoCheckResult]: Loop: 13#L16-2true assume !!(main_~i~0 < main_~n~0);main_#t~post2 := main_~k~0;main_~k~0 := main_#t~post2 - 1;havoc main_#t~post2;main_~i~0 := 2 + main_~i~0; 13#L16-2true [2018-12-08 23:54:47,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:54:47,549 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2018-12-08 23:54:47,550 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:54:47,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:54:47,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:47,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:54:47,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:47,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:54:47,605 INFO L82 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2018-12-08 23:54:47,605 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:54:47,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:54:47,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:47,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:54:47,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:47,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:54:47,611 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2018-12-08 23:54:47,611 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:54:47,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:54:47,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:47,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:54:47,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:47,650 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:54:47,650 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:54:47,650 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:54:47,650 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:54:47,651 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 23:54:47,651 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:47,651 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:54:47,651 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:54:47,651 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-08 23:54:47,651 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:54:47,651 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:54:47,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:47,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:47,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:47,713 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:54:47,714 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:47,717 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:54:47,717 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:54:47,722 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 23:54:47,722 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:47,737 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:54:47,737 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:47,754 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 23:54:47,754 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:54:47,766 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 23:54:47,766 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=-5}, {ULTIMATE.start_main_~k~0=4}, {ULTIMATE.start_main_~k~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:47,781 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:54:47,781 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:47,797 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 23:54:47,797 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:54:47,882 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 23:54:47,883 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:54:47,884 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:54:47,884 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:54:47,884 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:54:47,884 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 23:54:47,884 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:47,884 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:54:47,884 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:54:47,884 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-08 23:54:47,884 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:54:47,884 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:54:47,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:47,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:47,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:47,913 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:54:47,916 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 23:54:47,917 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 23:54:47,918 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:54:47,918 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:54:47,919 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:54:47,919 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:54:47,919 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:54:47,920 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 23:54:47,920 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:54:47,925 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:54:47,925 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 23:54:47,926 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:54:47,926 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:54:47,926 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:54:47,926 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:54:47,926 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:54:47,926 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 23:54:47,927 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:54:47,927 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:54:47,928 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 23:54:47,928 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:54:47,928 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:54:47,928 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:54:47,929 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:54:47,929 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:54:47,929 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 23:54:47,929 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:54:47,933 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 23:54:47,936 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 23:54:47,936 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 23:54:47,937 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 23:54:47,937 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 23:54:47,937 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 23:54:47,938 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-08 23:54:47,938 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 23:54:47,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:54:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:54:47,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:54:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:54:47,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:54:47,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:54:47,990 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 23:54:47,991 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2018-12-08 23:54:48,019 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 34 states and 44 transitions. Complement of second has 5 states. [2018-12-08 23:54:48,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 23:54:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 23:54:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-12-08 23:54:48,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-08 23:54:48,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:54:48,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-08 23:54:48,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:54:48,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-08 23:54:48,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:54:48,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2018-12-08 23:54:48,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 23:54:48,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 8 states and 10 transitions. [2018-12-08 23:54:48,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-08 23:54:48,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-08 23:54:48,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2018-12-08 23:54:48,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 23:54:48,033 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-12-08 23:54:48,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2018-12-08 23:54:48,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-08 23:54:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-08 23:54:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-12-08 23:54:48,054 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-12-08 23:54:48,054 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-12-08 23:54:48,054 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 23:54:48,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-12-08 23:54:48,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 23:54:48,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 23:54:48,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 23:54:48,055 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-08 23:54:48,055 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 23:54:48,056 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 79#L13 assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 83#L16-2 assume !(main_~i~0 < main_~n~0); 82#L16-3 main_~j~0 := 0; 81#L21-2 [2018-12-08 23:54:48,056 INFO L796 eck$LassoCheckResult]: Loop: 81#L21-2 assume !!(main_~j~0 < (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2));__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 84#L4 assume !(0 == __VERIFIER_assert_~cond); 80#L4-2 main_#t~post3 := main_~k~0;main_~k~0 := main_#t~post3 - 1;havoc main_#t~post3;main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 81#L21-2 [2018-12-08 23:54:48,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:54:48,056 INFO L82 PathProgramCache]: Analyzing trace with hash 959500, now seen corresponding path program 1 times [2018-12-08 23:54:48,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:54:48,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:54:48,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:48,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:54:48,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:48,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:54:48,062 INFO L82 PathProgramCache]: Analyzing trace with hash 57822, now seen corresponding path program 1 times [2018-12-08 23:54:48,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:54:48,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:54:48,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:48,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:54:48,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:54:48,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:54:48,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1480278541, now seen corresponding path program 1 times [2018-12-08 23:54:48,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:54:48,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:54:48,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:48,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:54:48,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:54:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:54:48,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:54:48,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:54:48,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 23:54:48,145 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:54:48,145 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:54:48,145 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:54:48,145 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:54:48,145 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 23:54:48,145 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:48,145 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:54:48,146 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:54:48,146 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-08 23:54:48,146 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:54:48,146 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:54:48,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:48,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:48,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:48,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:48,308 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:54:48,308 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:48,310 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:54:48,310 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9b0b19d-42e5-44d4-846c-85058306bd4f/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:48,334 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 23:54:48,334 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:54:48,353 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 23:54:48,354 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:54:48,354 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:54:48,354 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:54:48,354 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:54:48,354 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 23:54:48,354 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:54:48,354 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:54:48,355 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:54:48,355 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-08 23:54:48,355 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:54:48,355 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:54:48,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:48,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:48,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:48,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:54:48,516 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:54:48,517 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 23:54:48,517 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 23:54:48,518 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:54:48,518 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:54:48,518 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:54:48,518 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:54:48,518 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:54:48,519 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 23:54:48,519 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:54:48,524 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 23:54:48,527 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 23:54:48,527 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 23:54:48,527 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 23:54:48,527 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 23:54:48,528 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 23:54:48,528 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2018-12-08 23:54:48,528 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 23:54:48,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:54:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:54:48,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:54:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:54:48,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:54:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:54:48,570 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-08 23:54:48,570 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-12-08 23:54:48,596 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 11 states and 14 transitions. Complement of second has 6 states. [2018-12-08 23:54:48,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-08 23:54:48,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 23:54:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-12-08 23:54:48,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-12-08 23:54:48,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:54:48,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2018-12-08 23:54:48,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:54:48,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2018-12-08 23:54:48,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:54:48,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2018-12-08 23:54:48,598 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 23:54:48,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-12-08 23:54:48,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 23:54:48,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 23:54:48,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 23:54:48,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 23:54:48,599 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:54:48,599 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:54:48,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:54:48,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:54:48,602 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-12-08 23:54:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:54:48,603 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-08 23:54:48,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 23:54:48,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-12-08 23:54:48,603 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 23:54:48,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 23:54:48,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 23:54:48,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 23:54:48,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 23:54:48,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 23:54:48,604 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:54:48,604 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:54:48,604 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:54:48,604 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 23:54:48,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 23:54:48,604 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 23:54:48,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 23:54:48,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 11:54:48 BoogieIcfgContainer [2018-12-08 23:54:48,608 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 23:54:48,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:54:48,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:54:48,608 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:54:48,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:54:47" (3/4) ... [2018-12-08 23:54:48,611 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 23:54:48,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:54:48,611 INFO L168 Benchmark]: Toolchain (without parser) took 1435.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 954.4 MB in the beginning and 900.6 MB in the end (delta: 53.7 MB). Peak memory consumption was 154.9 MB. Max. memory is 11.5 GB. [2018-12-08 23:54:48,612 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:54:48,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.20 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:54:48,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.56 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:54:48,613 INFO L168 Benchmark]: Boogie Preprocessor took 10.90 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:54:48,614 INFO L168 Benchmark]: RCFGBuilder took 153.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-08 23:54:48,614 INFO L168 Benchmark]: BuchiAutomizer took 1126.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 900.6 MB in the end (delta: 186.7 MB). Peak memory consumption was 186.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:54:48,615 INFO L168 Benchmark]: Witness Printer took 2.80 ms. Allocated memory is still 1.1 GB. Free memory is still 900.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:54:48,617 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.20 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.56 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.90 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 153.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1126.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 900.6 MB in the end (delta: 186.7 MB). Peak memory consumption was 186.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.80 ms. Allocated memory is still 1.1 GB. Free memory is still 900.6 MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function k and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 17 SDtfs, 21 SDslu, 7 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital31 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div230 bol100 ite105 ukn100 eq143 hnf74 smp81 dnf130 smp98 tf107 neg99 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...