./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa 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/loops/while_infinite_loop_4_false-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 66fc6b12b7cd24de7373fe06aeeb5aec1e7e0e8b .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 23:00:32,282 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 23:00:32,284 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 23:00:32,301 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 23:00:32,302 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 23:00:32,305 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 23:00:32,307 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 23:00:32,309 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 23:00:32,312 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 23:00:32,313 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 23:00:32,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 23:00:32,324 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 23:00:32,325 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 23:00:32,326 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 23:00:32,327 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 23:00:32,328 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 23:00:32,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 23:00:32,330 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 23:00:32,332 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 23:00:32,334 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 23:00:32,335 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 23:00:32,337 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 23:00:32,339 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 23:00:32,339 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 23:00:32,339 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 23:00:32,340 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 23:00:32,341 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 23:00:32,342 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 23:00:32,343 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 23:00:32,347 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 23:00:32,347 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 23:00:32,348 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 23:00:32,348 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 23:00:32,348 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 23:00:32,352 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 23:00:32,353 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 23:00:32,353 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 23:00:32,377 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 23:00:32,378 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 23:00:32,379 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 23:00:32,379 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 23:00:32,379 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 23:00:32,379 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 23:00:32,382 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 23:00:32,382 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 23:00:32,383 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 23:00:32,383 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 23:00:32,383 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 23:00:32,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 23:00:32,383 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 23:00:32,383 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 23:00:32,384 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 23:00:32,384 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 23:00:32,384 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 23:00:32,384 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 23:00:32,384 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 23:00:32,384 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 23:00:32,386 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 23:00:32,386 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 23:00:32,386 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 23:00:32,386 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 23:00:32,386 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 23:00:32,386 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 23:00:32,387 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 23:00:32,387 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 23:00:32,387 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 23:00:32,387 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 23:00:32,387 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 23:00:32,388 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 23:00:32,388 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 -> 66fc6b12b7cd24de7373fe06aeeb5aec1e7e0e8b [2019-01-01 23:00:32,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 23:00:32,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 23:00:32,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 23:00:32,467 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 23:00:32,468 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 23:00:32,468 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i [2019-01-01 23:00:32,532 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af704880d/b7d6f5f1718843a9b29ad1f643b6136d/FLAG362a888d4 [2019-01-01 23:00:32,956 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 23:00:32,957 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/while_infinite_loop_4_false-unreach-call_true-termination.i [2019-01-01 23:00:32,963 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af704880d/b7d6f5f1718843a9b29ad1f643b6136d/FLAG362a888d4 [2019-01-01 23:00:33,333 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af704880d/b7d6f5f1718843a9b29ad1f643b6136d [2019-01-01 23:00:33,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 23:00:33,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 23:00:33,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 23:00:33,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 23:00:33,345 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 23:00:33,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@569723e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33, skipping insertion in model container [2019-01-01 23:00:33,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 23:00:33,380 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 23:00:33,552 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:00:33,559 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 23:00:33,575 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:00:33,593 INFO L195 MainTranslator]: Completed translation [2019-01-01 23:00:33,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33 WrapperNode [2019-01-01 23:00:33,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 23:00:33,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 23:00:33,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 23:00:33,595 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 23:00:33,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 23:00:33,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 23:00:33,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 23:00:33,635 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 23:00:33,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (1/1) ... [2019-01-01 23:00:33,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 23:00:33,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 23:00:33,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 23:00:33,669 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 23:00:33,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (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 [2019-01-01 23:00:33,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 23:00:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 23:00:33,986 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 23:00:33,987 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2019-01-01 23:00:33,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:00:33 BoogieIcfgContainer [2019-01-01 23:00:33,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 23:00:33,988 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 23:00:33,989 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 23:00:33,992 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 23:00:33,993 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:00:33,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 11:00:33" (1/3) ... [2019-01-01 23:00:33,994 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ca21ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:00:33, skipping insertion in model container [2019-01-01 23:00:33,994 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:00:33,994 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:00:33" (2/3) ... [2019-01-01 23:00:33,995 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ca21ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:00:33, skipping insertion in model container [2019-01-01 23:00:33,995 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:00:33,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:00:33" (3/3) ... [2019-01-01 23:00:33,997 INFO L375 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_4_false-unreach-call_true-termination.i [2019-01-01 23:00:34,057 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 23:00:34,058 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 23:00:34,058 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 23:00:34,058 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 23:00:34,058 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 23:00:34,058 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 23:00:34,059 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 23:00:34,059 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 23:00:34,059 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 23:00:34,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-01 23:00:34,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-01-01 23:00:34,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:00:34,098 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:00:34,106 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 23:00:34,106 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-01 23:00:34,106 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 23:00:34,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-01 23:00:34,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-01-01 23:00:34,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:00:34,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:00:34,109 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 23:00:34,109 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-01 23:00:34,117 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue ~x~0 := 0; 4#L-1true havoc main_#res; 12#L4-2true [2019-01-01 23:00:34,118 INFO L796 eck$LassoCheckResult]: Loop: 12#L4-2true assume !false; 14#L14loopEntrytrue assume false; 10#L14-2true __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 16#L4true assume !(0 == __VERIFIER_assert_~cond); 12#L4-2true [2019-01-01 23:00:34,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:00:34,124 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-01-01 23:00:34,127 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:00:34,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:00:34,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:00:34,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:00:34,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:00:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:00:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:00:34,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:00:34,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1269327, now seen corresponding path program 1 times [2019-01-01 23:00:34,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:00:34,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:00:34,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:00:34,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:00:34,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:00:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:00:34,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:00:34,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:00:34,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 23:00:34,262 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 23:00:34,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-01 23:00:34,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-01 23:00:34,284 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-01-01 23:00:34,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:00:34,291 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-01-01 23:00:34,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-01 23:00:34,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2019-01-01 23:00:34,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-01 23:00:34,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 6 transitions. [2019-01-01 23:00:34,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-01-01 23:00:34,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-01-01 23:00:34,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2019-01-01 23:00:34,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:00:34,301 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-01-01 23:00:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2019-01-01 23:00:34,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-01-01 23:00:34,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-01 23:00:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-01-01 23:00:34,330 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-01-01 23:00:34,330 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-01-01 23:00:34,330 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 23:00:34,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2019-01-01 23:00:34,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-01 23:00:34,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:00:34,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:00:34,331 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 23:00:34,331 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-01 23:00:34,332 INFO L794 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY ~x~0 := 0; 29#L-1 havoc main_#res; 30#L4-2 [2019-01-01 23:00:34,332 INFO L796 eck$LassoCheckResult]: Loop: 30#L4-2 assume !false; 34#L14loopEntry assume !false;~x~0 := 1; 32#L14-2 __VERIFIER_assert_#in~cond := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 33#L4 assume !(0 == __VERIFIER_assert_~cond); 30#L4-2 [2019-01-01 23:00:34,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:00:34,332 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2019-01-01 23:00:34,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:00:34,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:00:34,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:00:34,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:00:34,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:00:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:00:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:00:34,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:00:34,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1271249, now seen corresponding path program 1 times [2019-01-01 23:00:34,339 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:00:34,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:00:34,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:00:34,341 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 23:00:34,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:00:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:00:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:00:34,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:00:34,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 23:00:34,513 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 23:00:34,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 23:00:34,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 23:00:34,514 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. cyclomatic complexity: 1 Second operand 4 states. [2019-01-01 23:00:34,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:00:34,655 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-01-01 23:00:34,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 23:00:34,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2019-01-01 23:00:34,657 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 23:00:34,657 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2019-01-01 23:00:34,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 23:00:34,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 23:00:34,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 23:00:34,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:00:34,658 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:00:34,658 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:00:34,658 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:00:34,658 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 23:00:34,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 23:00:34,659 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 23:00:34,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 23:00:34,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 11:00:34 BoogieIcfgContainer [2019-01-01 23:00:34,675 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 23:00:34,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 23:00:34,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 23:00:34,676 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 23:00:34,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:00:33" (3/4) ... [2019-01-01 23:00:34,683 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 23:00:34,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 23:00:34,687 INFO L168 Benchmark]: Toolchain (without parser) took 1349.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:00:34,693 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:00:34,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.17 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:00:34,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.23 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:00:34,696 INFO L168 Benchmark]: Boogie Preprocessor took 33.86 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:00:34,697 INFO L168 Benchmark]: RCFGBuilder took 318.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-01 23:00:34,699 INFO L168 Benchmark]: BuchiAutomizer took 686.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-01-01 23:00:34,700 INFO L168 Benchmark]: Witness Printer took 8.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:00:34,707 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.17 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.23 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.86 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 318.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 686.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Witness Printer took 8.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. 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 6 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...