./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/down_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_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/down_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 52aef301dacdb8760f69e679392209c245be6469 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 21:57:45,545 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 21:57:45,546 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 21:57:45,551 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 21:57:45,552 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 21:57:45,552 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 21:57:45,553 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 21:57:45,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 21:57:45,554 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 21:57:45,555 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 21:57:45,555 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 21:57:45,555 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 21:57:45,556 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 21:57:45,556 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 21:57:45,557 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 21:57:45,557 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 21:57:45,558 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 21:57:45,559 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 21:57:45,560 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 21:57:45,560 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 21:57:45,561 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 21:57:45,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 21:57:45,563 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 21:57:45,563 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 21:57:45,563 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 21:57:45,563 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 21:57:45,564 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 21:57:45,564 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 21:57:45,565 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 21:57:45,565 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 21:57:45,565 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 21:57:45,566 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 21:57:45,566 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 21:57:45,566 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 21:57:45,566 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 21:57:45,567 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 21:57:45,567 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 21:57:45,574 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 21:57:45,574 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 21:57:45,575 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 21:57:45,575 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 21:57:45,575 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 21:57:45,575 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 21:57:45,575 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 21:57:45,575 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 21:57:45,576 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 21:57:45,576 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 21:57:45,576 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 21:57:45,576 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 21:57:45,576 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 21:57:45,576 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 21:57:45,576 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 21:57:45,576 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 21:57:45,577 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 21:57:45,577 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 21:57:45,577 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 21:57:45,577 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 21:57:45,577 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 21:57:45,577 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 21:57:45,577 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 21:57:45,577 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 21:57:45,578 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 21:57:45,578 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 21:57:45,578 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 21:57:45,578 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 21:57:45,578 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 21:57:45,578 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 21:57:45,578 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 21:57:45,579 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 21:57:45,579 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_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 -> 52aef301dacdb8760f69e679392209c245be6469 [2018-12-01 21:57:45,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 21:57:45,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 21:57:45,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 21:57:45,607 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 21:57:45,607 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 21:57:45,607 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/down_true-unreach-call_true-termination.i [2018-12-01 21:57:45,645 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/data/08ec1b3b9/579ac24e685643d98722584d346caa5e/FLAG5fc6a906b [2018-12-01 21:57:46,058 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 21:57:46,059 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/sv-benchmarks/c/loop-invgen/down_true-unreach-call_true-termination.i [2018-12-01 21:57:46,062 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/data/08ec1b3b9/579ac24e685643d98722584d346caa5e/FLAG5fc6a906b [2018-12-01 21:57:46,070 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/bin-2019/uautomizer/data/08ec1b3b9/579ac24e685643d98722584d346caa5e [2018-12-01 21:57:46,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 21:57:46,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 21:57:46,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 21:57:46,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 21:57:46,076 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 21:57:46,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96971f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46, skipping insertion in model container [2018-12-01 21:57:46,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 21:57:46,092 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 21:57:46,174 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 21:57:46,176 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 21:57:46,185 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 21:57:46,192 INFO L195 MainTranslator]: Completed translation [2018-12-01 21:57:46,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46 WrapperNode [2018-12-01 21:57:46,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 21:57:46,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 21:57:46,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 21:57:46,194 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 21:57:46,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 21:57:46,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 21:57:46,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 21:57:46,211 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 21:57:46,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... [2018-12-01 21:57:46,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 21:57:46,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 21:57:46,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 21:57:46,222 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 21:57:46,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 [2018-12-01 21:57:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 21:57:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 21:57:46,355 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 21:57:46,356 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-01 21:57:46,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:57:46 BoogieIcfgContainer [2018-12-01 21:57:46,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 21:57:46,356 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 21:57:46,356 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 21:57:46,358 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 21:57:46,359 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 21:57:46,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 09:57:46" (1/3) ... [2018-12-01 21:57:46,359 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@86d778a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 09:57:46, skipping insertion in model container [2018-12-01 21:57:46,360 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 21:57:46,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:57:46" (2/3) ... [2018-12-01 21:57:46,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@86d778a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 09:57:46, skipping insertion in model container [2018-12-01 21:57:46,360 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 21:57:46,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:57:46" (3/3) ... [2018-12-01 21:57:46,361 INFO L375 chiAutomizerObserver]: Analyzing ICFG down_true-unreach-call_true-termination.i [2018-12-01 21:57:46,393 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 21:57:46,393 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 21:57:46,393 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 21:57:46,393 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 21:57:46,393 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 21:57:46,393 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 21:57:46,393 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 21:57:46,393 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 21:57:46,394 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 21:57:46,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-12-01 21:57:46,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-01 21:57:46,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 21:57:46,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 21:57:46,417 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 21:57:46,417 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 21:57:46,417 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 21:57:46,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-12-01 21:57:46,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-01 21:57:46,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 21:57:46,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 21:57:46,418 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 21:57:46,418 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-01 21:57:46,422 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_#t~post5, main_~n~0, main_~k~0, main_~i~0, main_~j~0;havoc main_~n~0;main_~k~0 := 0;main_~i~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L15-2true [2018-12-01 21:57:46,423 INFO L796 eck$LassoCheckResult]: Loop: 10#L15-2true assume !!(main_~i~0 < main_~n~0);main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2;main_#t~post3 := main_~k~0;main_~k~0 := 1 + main_#t~post3;havoc main_#t~post3; 10#L15-2true [2018-12-01 21:57:46,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:57:46,426 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-01 21:57:46,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 21:57:46,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 21:57:46,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 21:57:46,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:57:46,482 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-12-01 21:57:46,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 21:57:46,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 21:57:46,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 21:57:46,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:57:46,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-01 21:57:46,489 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 21:57:46,489 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 21:57:46,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 21:57:46,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,526 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 21:57:46,527 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 21:57:46,527 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 21:57:46,527 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 21:57:46,527 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 21:57:46,527 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 21:57:46,527 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 21:57:46,527 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 21:57:46,527 INFO L131 ssoRankerPreferences]: Filename of dumped script: down_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-01 21:57:46,528 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 21:57:46,528 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 21:57:46,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,597 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 21:57:46,597 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 [2018-12-01 21:57:46,601 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 21:57:46,601 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 21:57:46,606 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 21:57:46,606 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_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 [2018-12-01 21:57:46,621 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 21:57:46,621 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 [2018-12-01 21:57:46,638 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 21:57:46,638 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 21:57:46,730 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 21:57:46,731 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 21:57:46,731 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 21:57:46,731 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 21:57:46,731 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 21:57:46,732 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 21:57:46,732 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 21:57:46,732 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 21:57:46,732 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 21:57:46,732 INFO L131 ssoRankerPreferences]: Filename of dumped script: down_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-01 21:57:46,732 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 21:57:46,732 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 21:57:46,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,767 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 21:57:46,771 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 21:57:46,772 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 [2018-12-01 21:57:46,773 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 21:57:46,773 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 21:57:46,773 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 21:57:46,773 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 21:57:46,773 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 21:57:46,775 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 21:57:46,775 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 21:57:46,777 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 21:57:46,777 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-01 21:57:46,778 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 21:57:46,778 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 21:57:46,778 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 21:57:46,778 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 21:57:46,778 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 21:57:46,779 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 21:57:46,779 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 21:57:46,782 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 21:57:46,786 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-01 21:57:46,786 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 21:57:46,788 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 21:57:46,788 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 21:57:46,788 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 21:57:46,788 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 [] [2018-12-01 21:57:46,789 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 21:57:46,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:57:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 21:57:46,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 21:57:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 21:57:46,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 21:57:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 21:57:46,842 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 [2018-12-01 21:57:46,843 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 2 states. [2018-12-01 21:57:46,876 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 2 states. Result 30 states and 40 transitions. Complement of second has 5 states. [2018-12-01 21:57:46,877 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 [2018-12-01 21:57:46,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-01 21:57:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-12-01 21:57:46,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 1 letters. Loop has 1 letters. [2018-12-01 21:57:46,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 21:57:46,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-01 21:57:46,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 21:57:46,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-01 21:57:46,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 21:57:46,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2018-12-01 21:57:46,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-01 21:57:46,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 7 states and 9 transitions. [2018-12-01 21:57:46,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-01 21:57:46,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-12-01 21:57:46,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2018-12-01 21:57:46,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 21:57:46,885 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-01 21:57:46,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2018-12-01 21:57:46,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-01 21:57:46,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-01 21:57:46,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-12-01 21:57:46,900 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-01 21:57:46,900 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-01 21:57:46,900 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 21:57:46,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-12-01 21:57:46,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-01 21:57:46,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 21:57:46,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 21:57:46,901 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 21:57:46,901 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-01 21:57:46,901 INFO L794 eck$LassoCheckResult]: Stem: 70#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_#t~post5, main_~n~0, main_~k~0, main_~i~0, main_~j~0;havoc main_~n~0;main_~k~0 := 0;main_~i~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 71#L15-2 assume !(main_~i~0 < main_~n~0); 72#L15-3 main_~j~0 := main_~n~0; 73#L20-2 [2018-12-01 21:57:46,901 INFO L796 eck$LassoCheckResult]: Loop: 73#L20-2 assume !!(main_~j~0 > 0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 75#L4 assume !(0 == __VERIFIER_assert_~cond); 74#L4-2 main_#t~post4 := main_~j~0;main_~j~0 := main_#t~post4 - 1;havoc main_#t~post4;main_#t~post5 := main_~k~0;main_~k~0 := main_#t~post5 - 1;havoc main_#t~post5; 73#L20-2 [2018-12-01 21:57:46,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:57:46,902 INFO L82 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2018-12-01 21:57:46,902 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 21:57:46,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 21:57:46,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 21:57:46,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:57:46,906 INFO L82 PathProgramCache]: Analyzing trace with hash 52857, now seen corresponding path program 1 times [2018-12-01 21:57:46,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 21:57:46,906 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 21:57:46,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 21:57:46,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:57:46,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:57:46,916 INFO L82 PathProgramCache]: Analyzing trace with hash 923961140, now seen corresponding path program 1 times [2018-12-01 21:57:46,916 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 21:57:46,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 21:57:46,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 21:57:46,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 21:57:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 21:57:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 21:57:46,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 21:57:46,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 21:57:46,975 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 21:57:46,975 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 21:57:46,975 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 21:57:46,975 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 21:57:46,975 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 21:57:46,975 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 21:57:46,975 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 21:57:46,976 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 21:57:46,976 INFO L131 ssoRankerPreferences]: Filename of dumped script: down_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-01 21:57:46,976 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 21:57:46,976 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 21:57:46,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:46,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:47,039 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 21:57:47,039 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 [2018-12-01 21:57:47,041 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 21:57:47,041 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 21:57:47,044 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 21:57:47,044 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_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 [2018-12-01 21:57:47,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 21:57:47,069 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8f5c4ec-6fc6-4a34-9505-103f8ed0a742/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 [2018-12-01 21:57:47,086 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 21:57:47,086 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 21:57:47,104 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 21:57:47,105 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 21:57:47,105 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 21:57:47,105 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 21:57:47,105 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 21:57:47,105 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 21:57:47,105 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 21:57:47,105 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 21:57:47,105 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 21:57:47,105 INFO L131 ssoRankerPreferences]: Filename of dumped script: down_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-01 21:57:47,105 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 21:57:47,106 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 21:57:47,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:47,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:47,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:47,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 21:57:47,169 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 21:57:47,169 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 21:57:47,169 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 [2018-12-01 21:57:47,170 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 21:57:47,170 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 21:57:47,170 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 21:57:47,170 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 21:57:47,170 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 21:57:47,171 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 21:57:47,171 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 21:57:47,177 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 21:57:47,180 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 21:57:47,181 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-01 21:57:47,181 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 21:57:47,181 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 21:57:47,181 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 21:57:47,181 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2018-12-01 21:57:47,181 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 21:57:47,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:57:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 21:57:47,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 21:57:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 21:57:47,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 21:57:47,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 21:57:47,224 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 [2018-12-01 21:57:47,224 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-12-01 21:57:47,248 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 10 states and 13 transitions. Complement of second has 6 states. [2018-12-01 21:57:47,249 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 [2018-12-01 21:57:47,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 21:57:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-12-01 21:57:47,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2018-12-01 21:57:47,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 21:57:47,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-01 21:57:47,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 21:57:47,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2018-12-01 21:57:47,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 21:57:47,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2018-12-01 21:57:47,251 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 21:57:47,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2018-12-01 21:57:47,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 21:57:47,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 21:57:47,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 21:57:47,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 21:57:47,251 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 21:57:47,251 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 21:57:47,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 21:57:47,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 21:57:47,254 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-12-01 21:57:47,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 21:57:47,256 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-01 21:57:47,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 21:57:47,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-12-01 21:57:47,256 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 21:57:47,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 21:57:47,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 21:57:47,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 21:57:47,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 21:57:47,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 21:57:47,256 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 21:57:47,256 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 21:57:47,256 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 21:57:47,256 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 21:57:47,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 21:57:47,257 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 21:57:47,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 21:57:47,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 09:57:47 BoogieIcfgContainer [2018-12-01 21:57:47,261 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 21:57:47,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 21:57:47,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 21:57:47,261 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 21:57:47,261 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:57:46" (3/4) ... [2018-12-01 21:57:47,263 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 21:57:47,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 21:57:47,264 INFO L168 Benchmark]: Toolchain (without parser) took 1191.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 954.9 MB in the beginning and 946.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 108.5 MB. Max. memory is 11.5 GB. [2018-12-01 21:57:47,265 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 21:57:47,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.28 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 21:57:47,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.72 ms. Allocated memory is still 1.0 GB. Free memory is still 944.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 21:57:47,266 INFO L168 Benchmark]: Boogie Preprocessor took 10.76 ms. Allocated memory is still 1.0 GB. Free memory was 944.2 MB in the beginning and 938.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-01 21:57:47,266 INFO L168 Benchmark]: RCFGBuilder took 133.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-01 21:57:47,266 INFO L168 Benchmark]: BuchiAutomizer took 904.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 946.0 MB in the end (delta: 139.9 MB). Peak memory consumption was 139.9 MB. Max. memory is 11.5 GB. [2018-12-01 21:57:47,267 INFO L168 Benchmark]: Witness Printer took 2.74 ms. Allocated memory is still 1.1 GB. Free memory is still 946.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 21:57:47,268 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.28 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.2 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 17.72 ms. Allocated memory is still 1.0 GB. Free memory is still 944.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.76 ms. Allocated memory is still 1.0 GB. Free memory was 944.2 MB in the beginning and 938.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 133.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 904.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 946.0 MB in the end (delta: 139.9 MB). Peak memory consumption was 139.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.74 ms. Allocated memory is still 1.1 GB. Free memory is still 946.0 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 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 14 SDslu, 8 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite118 ukn100 eq166 hnf92 smp77 dnf98 smp100 tf110 neg98 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 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...