./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/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 305e9c546a6cc2591d6267bc612ab5ec3e8adaa4 ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:44:48,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:44:48,516 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:44:48,523 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:44:48,523 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:44:48,524 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:44:48,524 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:44:48,526 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:44:48,527 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:44:48,527 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:44:48,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:44:48,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:44:48,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:44:48,530 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:44:48,530 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:44:48,531 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:44:48,531 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:44:48,533 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:44:48,534 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:44:48,535 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:44:48,536 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:44:48,537 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:44:48,538 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:44:48,538 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:44:48,538 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:44:48,539 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:44:48,540 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:44:48,540 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:44:48,541 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:44:48,542 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:44:48,542 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:44:48,542 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:44:48,542 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:44:48,543 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:44:48,543 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:44:48,544 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:44:48,544 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 12:44:48,553 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:44:48,553 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:44:48,554 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:44:48,554 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:44:48,554 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:44:48,554 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:44:48,554 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:44:48,555 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:44:48,555 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:44:48,555 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:44:48,555 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:44:48,555 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:44:48,555 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:44:48,555 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:44:48,556 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:44:48,556 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:44:48,556 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:44:48,556 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:44:48,556 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:44:48,556 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:44:48,556 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:44:48,556 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:44:48,557 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:44:48,557 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:44:48,557 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:44:48,557 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:44:48,557 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:44:48,557 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:44:48,557 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:44:48,558 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:44:48,558 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:44:48,558 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:44:48,558 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_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/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 -> 305e9c546a6cc2591d6267bc612ab5ec3e8adaa4 [2018-11-28 12:44:48,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:44:48,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:44:48,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:44:48,594 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:44:48,594 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:44:48,595 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/sendmail-close-angle_true-unreach-call_true-termination.i [2018-11-28 12:44:48,630 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/data/4348d1aa2/f41518ec48204993992fec468be40441/FLAG105dda404 [2018-11-28 12:44:49,032 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:44:49,033 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/sv-benchmarks/c/loop-invgen/sendmail-close-angle_true-unreach-call_true-termination.i [2018-11-28 12:44:49,038 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/data/4348d1aa2/f41518ec48204993992fec468be40441/FLAG105dda404 [2018-11-28 12:44:49,047 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/data/4348d1aa2/f41518ec48204993992fec468be40441 [2018-11-28 12:44:49,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:44:49,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:44:49,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:44:49,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:44:49,053 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:44:49,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29cc7d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49, skipping insertion in model container [2018-11-28 12:44:49,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:44:49,070 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:44:49,163 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:44:49,166 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:44:49,177 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:44:49,185 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:44:49,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49 WrapperNode [2018-11-28 12:44:49,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:44:49,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:44:49,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:44:49,186 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:44:49,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:44:49,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:44:49,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:44:49,209 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:44:49,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... [2018-11-28 12:44:49,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:44:49,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:44:49,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:44:49,226 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:44:49,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:44:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:44:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:44:49,449 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:44:49,449 INFO L280 CfgBuilder]: Removed 21 assue(true) statements. [2018-11-28 12:44:49,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:49 BoogieIcfgContainer [2018-11-28 12:44:49,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:44:49,450 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:44:49,450 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:44:49,453 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:44:49,454 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:44:49,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:44:49" (1/3) ... [2018-11-28 12:44:49,455 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b1bacd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:44:49, skipping insertion in model container [2018-11-28 12:44:49,456 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:44:49,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:49" (2/3) ... [2018-11-28 12:44:49,456 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b1bacd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:44:49, skipping insertion in model container [2018-11-28 12:44:49,456 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:44:49,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:49" (3/3) ... [2018-11-28 12:44:49,458 INFO L375 chiAutomizerObserver]: Analyzing ICFG sendmail-close-angle_true-unreach-call_true-termination.i [2018-11-28 12:44:49,505 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:44:49,506 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:44:49,506 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:44:49,506 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:44:49,506 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:44:49,506 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:44:49,507 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:44:49,507 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:44:49,507 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:44:49,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states. [2018-11-28 12:44:49,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-11-28 12:44:49,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:44:49,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:44:49,548 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 12:44:49,548 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:49,548 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:44:49,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states. [2018-11-28 12:44:49,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-11-28 12:44:49,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:44:49,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:44:49,551 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 12:44:49,551 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:49,558 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~post4, main_#t~post5, main_#t~nondet3, main_#t~post6, main_#t~post7, main_~in~0, main_~inlen~0, main_~bufferlen~0, main_~buf~0, main_~buflim~0;havoc main_~in~0;main_~inlen~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~bufferlen~0 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~buf~0;havoc main_~buflim~0; 25#L17true assume main_~bufferlen~0 > 1; 23#L17-1true assume main_~inlen~0 > 0; 6#L18true assume main_~bufferlen~0 < main_~inlen~0; 28#L19true main_~buf~0 := 0;main_~in~0 := 0;main_~buflim~0 := main_~bufferlen~0 - 2; 19#L4-11true [2018-11-28 12:44:49,558 INFO L796 eck$LassoCheckResult]: Loop: 19#L4-11true assume !!(0 != main_#t~nondet3);havoc main_#t~nondet3; 20#L25true assume !(main_~buf~0 == main_~buflim~0);__VERIFIER_assert_#in~cond := (if 0 <= main_~buf~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 38#L4true assume !(0 == __VERIFIER_assert_~cond); 36#L4-2true __VERIFIER_assert_#in~cond := (if main_~buf~0 < main_~bufferlen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 35#L4-3true assume !(0 == __VERIFIER_assert_~cond); 33#L4-5true main_#t~post4 := main_~buf~0;main_~buf~0 := 1 + main_#t~post4;havoc main_#t~post4; 30#L30true main_#t~post5 := main_~in~0;main_~in~0 := 1 + main_#t~post5;havoc main_#t~post5;__VERIFIER_assert_#in~cond := (if 0 <= main_~in~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 7#L4-6true assume !(0 == __VERIFIER_assert_~cond); 5#L4-8true __VERIFIER_assert_#in~cond := (if main_~in~0 < main_~inlen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 4#L4-9true assume !(0 == __VERIFIER_assert_~cond); 19#L4-11true [2018-11-28 12:44:49,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:49,562 INFO L82 PathProgramCache]: Analyzing trace with hash 29681962, now seen corresponding path program 1 times [2018-11-28 12:44:49,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:49,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:49,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:49,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:49,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:44:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:44:49,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:49,633 INFO L82 PathProgramCache]: Analyzing trace with hash 118105786, now seen corresponding path program 1 times [2018-11-28 12:44:49,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:49,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:49,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:49,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:49,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:44:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:44:49,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:49,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1558155101, now seen corresponding path program 1 times [2018-11-28 12:44:49,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:49,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:49,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:49,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:49,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:44:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:44:49,848 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:44:49,849 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:44:49,849 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:44:49,849 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:44:49,849 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:44:49,849 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:44:49,849 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:44:49,849 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:44:49,849 INFO L131 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 12:44:49,849 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:44:49,850 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:44:49,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:49,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:49,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:49,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:49,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:49,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:49,979 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:44:49,979 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:44:49,989 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:44:49,989 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72ddc563-56ef-48e9-ab10-aa5aaf55ad25/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:44:50,015 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:44:50,015 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:44:50,108 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:44:50,109 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:44:50,109 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:44:50,109 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:44:50,109 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:44:50,109 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:44:50,109 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:44:50,109 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:44:50,109 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:44:50,110 INFO L131 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 12:44:50,110 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:44:50,110 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:44:50,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:50,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:50,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:50,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:50,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:50,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:44:50,209 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:44:50,213 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:44:50,215 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:44:50,216 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:44:50,216 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:44:50,216 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:44:50,216 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:44:50,217 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:44:50,218 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:44:50,219 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:44:50,225 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:44:50,225 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:44:50,226 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:44:50,226 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:44:50,226 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:44:50,226 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:44:50,226 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:44:50,227 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:44:50,227 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:44:50,232 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:44:50,237 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:44:50,237 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:44:50,239 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:44:50,239 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:44:50,239 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:44:50,239 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~in~0, ULTIMATE.start_main_~inlen~0) = -1*ULTIMATE.start_main_~in~0 + 1*ULTIMATE.start_main_~inlen~0 Supporting invariants [] [2018-11-28 12:44:50,240 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:44:50,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:50,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:44:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:50,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:44:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:44:50,333 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 [2018-11-28 12:44:50,334 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states. Second operand 5 states. [2018-11-28 12:44:50,398 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states.. Second operand 5 states. Result 103 states and 130 transitions. Complement of second has 9 states. [2018-11-28 12:44:50,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-11-28 12:44:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 12:44:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 93 transitions. [2018-11-28 12:44:50,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 93 transitions. Stem has 5 letters. Loop has 10 letters. [2018-11-28 12:44:50,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:44:50,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 93 transitions. Stem has 15 letters. Loop has 10 letters. [2018-11-28 12:44:50,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:44:50,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 93 transitions. Stem has 5 letters. Loop has 20 letters. [2018-11-28 12:44:50,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:44:50,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 130 transitions. [2018-11-28 12:44:50,407 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:44:50,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 0 states and 0 transitions. [2018-11-28 12:44:50,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:44:50,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:44:50,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:44:50,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:44:50,411 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:44:50,411 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:44:50,411 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:44:50,411 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:44:50,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:44:50,411 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:44:50,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 12:44:50,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:44:50 BoogieIcfgContainer [2018-11-28 12:44:50,415 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:44:50,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:44:50,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:44:50,416 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:44:50,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:49" (3/4) ... [2018-11-28 12:44:50,418 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:44:50,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:44:50,418 INFO L168 Benchmark]: Toolchain (without parser) took 1369.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 958.7 MB in the beginning and 986.9 MB in the end (delta: -28.2 MB). Peak memory consumption was 92.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:50,420 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:44:50,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.54 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:50,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.95 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 942.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:50,421 INFO L168 Benchmark]: Boogie Preprocessor took 16.48 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:50,422 INFO L168 Benchmark]: RCFGBuilder took 223.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:50,422 INFO L168 Benchmark]: BuchiAutomizer took 965.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.9 MB in the end (delta: 113.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:50,422 INFO L168 Benchmark]: Witness Printer took 2.78 ms. Allocated memory is still 1.1 GB. Free memory is still 986.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:44:50,425 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.54 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.95 ms. Allocated memory is still 1.0 GB. Free memory was 947.8 MB in the beginning and 942.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.48 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 223.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 965.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.9 MB in the end (delta: 113.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.78 ms. Allocated memory is still 1.1 GB. Free memory is still 986.9 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * in + inlen and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 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 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 39 SDtfs, 45 SDslu, 54 SDs, 0 SdLazy, 10 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp100 dnf169 smp100 tf104 neg95 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 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...