./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-invgen/half_2_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loop-invgen/half_2_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca10e259bac305ecd55fc4a34d201bc0894aa533 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:43:57,152 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:43:57,155 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:43:57,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:43:57,173 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:43:57,175 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:43:57,178 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:43:57,182 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:43:57,186 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:43:57,194 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:43:57,195 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:43:57,196 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:43:57,197 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:43:57,198 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:43:57,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:43:57,204 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:43:57,204 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:43:57,208 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:43:57,212 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:43:57,216 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:43:57,218 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:43:57,222 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:43:57,228 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:43:57,229 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:43:57,229 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:43:57,230 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:43:57,231 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:43:57,235 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:43:57,237 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:43:57,238 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:43:57,240 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:43:57,241 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:43:57,241 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:43:57,241 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:43:57,242 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:43:57,246 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:43:57,248 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:43:57,271 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:43:57,271 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:43:57,273 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:43:57,273 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:43:57,273 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:43:57,273 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:43:57,274 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:43:57,274 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:43:57,274 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:43:57,274 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:43:57,274 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:43:57,274 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:43:57,276 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:43:57,276 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:43:57,276 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:43:57,276 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:43:57,276 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:43:57,276 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:43:57,277 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:43:57,277 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:43:57,278 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:43:57,278 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:43:57,278 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:43:57,278 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:43:57,278 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:43:57,278 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:43:57,279 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:43:57,280 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:43:57,280 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:43:57,280 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:43:57,280 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:43:57,282 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:43:57,282 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca10e259bac305ecd55fc4a34d201bc0894aa533 [2018-11-28 23:43:57,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:43:57,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:43:57,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:43:57,354 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:43:57,355 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:43:57,355 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2018-11-28 23:43:57,428 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb50bb6c/8785a01f92754f829cd5be90db909040/FLAG353601c6d [2018-11-28 23:43:57,859 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:43:57,859 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2018-11-28 23:43:57,865 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb50bb6c/8785a01f92754f829cd5be90db909040/FLAG353601c6d [2018-11-28 23:43:58,221 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcb50bb6c/8785a01f92754f829cd5be90db909040 [2018-11-28 23:43:58,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:43:58,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:43:58,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:43:58,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:43:58,233 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:43:58,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c023ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58, skipping insertion in model container [2018-11-28 23:43:58,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:43:58,263 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:43:58,453 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:43:58,461 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:43:58,487 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:43:58,509 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:43:58,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58 WrapperNode [2018-11-28 23:43:58,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:43:58,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:43:58,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:43:58,511 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:43:58,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:43:58,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:43:58,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:43:58,556 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:43:58,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... [2018-11-28 23:43:58,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:43:58,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:43:58,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:43:58,597 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:43:58,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:43:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:43:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:43:58,988 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:43:58,988 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 23:43:58,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:43:58 BoogieIcfgContainer [2018-11-28 23:43:58,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:43:58,990 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:43:58,990 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:43:58,994 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:43:58,995 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:43:58,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:43:58" (1/3) ... [2018-11-28 23:43:58,997 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@669dd516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:43:58, skipping insertion in model container [2018-11-28 23:43:58,997 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:43:58,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:43:58" (2/3) ... [2018-11-28 23:43:58,998 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@669dd516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:43:58, skipping insertion in model container [2018-11-28 23:43:58,998 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:43:58,998 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:43:58" (3/3) ... [2018-11-28 23:43:59,000 INFO L375 chiAutomizerObserver]: Analyzing ICFG half_2_true-unreach-call_true-termination.i [2018-11-28 23:43:59,063 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:43:59,064 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:43:59,064 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:43:59,064 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:43:59,064 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:43:59,065 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:43:59,065 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:43:59,065 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:43:59,065 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:43:59,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-28 23:43:59,111 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 23:43:59,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:43:59,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:43:59,118 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:43:59,118 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:43:59,118 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:43:59,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-28 23:43:59,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 23:43:59,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:43:59,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:43:59,121 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:43:59,121 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:43:59,129 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L13true assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 13#L16-2true [2018-11-28 23:43:59,129 INFO L796 eck$LassoCheckResult]: Loop: 13#L16-2true assume !!(main_~i~0 < main_~n~0);main_#t~post2 := main_~k~0;main_~k~0 := main_#t~post2 - 1;havoc main_#t~post2;main_~i~0 := 2 + main_~i~0; 13#L16-2true [2018-11-28 23:43:59,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:59,138 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2018-11-28 23:43:59,140 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:59,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:59,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:59,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:59,250 INFO L82 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2018-11-28 23:43:59,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:59,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:59,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:59,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:43:59,263 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2018-11-28 23:43:59,264 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:43:59,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:43:59,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:43:59,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:43:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:43:59,477 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:43:59,478 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:43:59,479 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:43:59,479 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:43:59,479 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:43:59,479 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:59,479 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:43:59,479 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:43:59,480 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 23:43:59,480 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:43:59,480 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:43:59,501 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 23:43:59,515 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 23:43:59,529 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 23:43:59,646 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:43:59,647 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:43:59,652 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:43:59,652 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:43:59,663 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:43:59,663 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:43:59,686 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:43:59,686 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:59,711 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:43:59,711 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:43:59,731 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:43:59,731 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=-5}, {ULTIMATE.start_main_~k~0=4}, {ULTIMATE.start_main_~k~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:59,759 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:43:59,759 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:59,787 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:43:59,787 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:43:59,927 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:43:59,929 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:43:59,930 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:43:59,930 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:43:59,930 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:43:59,930 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:43:59,930 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:43:59,930 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:43:59,931 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:43:59,931 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 23:43:59,931 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:43:59,931 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:43:59,933 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 23:43:59,945 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 23:43:59,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:00,064 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:00,070 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:00,071 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 23:44:00,073 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:00,073 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:00,074 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:00,074 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:00,074 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:00,077 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:00,077 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:00,086 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:44:00,087 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 23:44:00,088 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:00,088 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:00,088 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:00,088 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:00,088 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:00,089 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:00,089 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:00,091 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:44:00,092 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 23:44:00,093 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:00,093 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:00,093 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:00,093 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:00,094 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:00,095 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:00,095 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:00,103 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:00,110 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:00,111 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:44:00,113 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:00,113 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:00,114 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:00,114 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 [] [2018-11-28 23:44:00,116 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:00,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:00,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:00,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:00,365 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 23:44:00,387 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 [2018-11-28 23:44:00,389 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2018-11-28 23:44:00,498 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 34 states and 44 transitions. Complement of second has 5 states. [2018-11-28 23:44:00,499 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 [2018-11-28 23:44:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 23:44:00,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2018-11-28 23:44:00,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 23:44:00,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:00,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 23:44:00,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:00,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 23:44:00,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:00,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2018-11-28 23:44:00,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:44:00,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 8 states and 10 transitions. [2018-11-28 23:44:00,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 23:44:00,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 23:44:00,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2018-11-28 23:44:00,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:00,521 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-28 23:44:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2018-11-28 23:44:00,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-28 23:44:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-28 23:44:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-11-28 23:44:00,547 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-28 23:44:00,548 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-28 23:44:00,548 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:44:00,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-11-28 23:44:00,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:44:00,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:44:00,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:44:00,549 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 23:44:00,550 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:44:00,550 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 79#L13 assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 83#L16-2 assume !(main_~i~0 < main_~n~0); 82#L16-3 main_~j~0 := 0; 81#L21-2 [2018-11-28 23:44:00,550 INFO L796 eck$LassoCheckResult]: Loop: 81#L21-2 assume !!(main_~j~0 < (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2));__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 84#L4 assume !(0 == __VERIFIER_assert_~cond); 80#L4-2 main_#t~post3 := main_~k~0;main_~k~0 := main_#t~post3 - 1;havoc main_#t~post3;main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 81#L21-2 [2018-11-28 23:44:00,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:00,551 INFO L82 PathProgramCache]: Analyzing trace with hash 959500, now seen corresponding path program 1 times [2018-11-28 23:44:00,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:00,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:00,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:00,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:00,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:00,565 INFO L82 PathProgramCache]: Analyzing trace with hash 57822, now seen corresponding path program 1 times [2018-11-28 23:44:00,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:00,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:00,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:00,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:44:00,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:00,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1480278541, now seen corresponding path program 1 times [2018-11-28 23:44:00,606 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:44:00,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:44:00,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:44:00,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:44:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:00,729 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 23:44:00,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:44:00,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:44:00,864 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:00,864 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:00,864 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:00,865 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:00,865 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:44:00,865 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:00,865 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:00,865 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:00,865 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 23:44:00,865 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:00,866 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:00,868 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 23:44:00,968 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 23:44:01,012 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 23:44:01,014 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 23:44:01,326 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2018-11-28 23:44:01,535 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-28 23:44:01,977 WARN L180 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2018-11-28 23:44:01,983 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:01,984 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:01,992 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:44:01,992 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:02,019 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:44:02,020 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:44:02,052 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:44:02,054 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:44:02,054 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:44:02,054 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:44:02,054 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:44:02,055 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:44:02,055 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:44:02,055 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:44:02,055 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:44:02,055 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 23:44:02,055 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:44:02,056 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:44:02,059 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 23:44:02,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:44:02,097 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 23:44:02,103 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 23:44:02,322 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2018-11-28 23:44:02,470 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2018-11-28 23:44:02,476 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:44:02,476 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:44:02,477 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 23:44:02,478 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:44:02,479 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:44:02,479 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:44:02,479 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:44:02,479 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:44:02,480 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:44:02,481 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:44:02,488 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:44:02,494 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:44:02,494 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:44:02,494 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:44:02,495 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:44:02,495 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:44:02,495 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2018-11-28 23:44:02,495 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:44:02,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:44:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:02,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:44:02,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:44:02,657 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 23:44:02,658 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 23:44:02,658 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-28 23:44:02,721 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 11 states and 14 transitions. Complement of second has 6 states. [2018-11-28 23:44:02,722 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 [2018-11-28 23:44:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:44:02,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-28 23:44:02,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-28 23:44:02,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:02,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-28 23:44:02,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:02,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-28 23:44:02,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:44:02,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2018-11-28 23:44:02,726 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:02,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2018-11-28 23:44:02,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:44:02,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:44:02,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:44:02,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:02,728 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,728 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:44:02,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:44:02,733 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-28 23:44:02,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:44:02,735 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:44:02,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:44:02,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:44:02,736 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:02,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:44:02,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:44:02,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:44:02,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:44:02,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:44:02,737 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,737 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,737 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:44:02,737 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:44:02,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:44:02,738 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:44:02,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:44:02,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:44:02 BoogieIcfgContainer [2018-11-28 23:44:02,746 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:44:02,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:44:02,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:44:02,747 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:44:02,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:43:58" (3/4) ... [2018-11-28 23:44:02,751 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:44:02,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:44:02,753 INFO L168 Benchmark]: Toolchain (without parser) took 4527.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 952.7 MB in the beginning and 928.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 155.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:02,754 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:02,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.51 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:02,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.59 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:02,756 INFO L168 Benchmark]: Boogie Preprocessor took 36.04 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:02,757 INFO L168 Benchmark]: RCFGBuilder took 392.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -166.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:02,758 INFO L168 Benchmark]: BuchiAutomizer took 3755.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.1 MB in the end (delta: 180.1 MB). Peak memory consumption was 180.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:44:02,759 INFO L168 Benchmark]: Witness Printer took 5.52 ms. Allocated memory is still 1.2 GB. Free memory is still 928.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:44:02,763 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.51 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 44.59 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.04 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 392.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -166.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3755.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.1 MB in the end (delta: 180.1 MB). Peak memory consumption was 180.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.52 ms. Allocated memory is still 1.2 GB. Free memory is still 928.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function k and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 17 SDtfs, 21 SDslu, 7 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital31 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div230 bol100 ite105 ukn100 eq143 hnf74 smp81 dnf130 smp98 tf107 neg99 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...