./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/Binary_Search_false-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted/Binary_Search_false-termination_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash c82b80ee1d840c8880cc584253dffda998627af8 ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:13:15,615 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:13:15,620 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:13:15,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:13:15,642 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:13:15,643 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:13:15,647 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:13:15,650 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:13:15,651 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:13:15,653 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:13:15,653 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:13:15,653 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:13:15,656 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:13:15,656 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:13:15,658 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:13:15,659 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:13:15,659 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:13:15,662 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:13:15,664 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:13:15,665 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:13:15,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:13:15,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:13:15,671 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:13:15,671 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:13:15,671 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:13:15,672 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:13:15,673 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:13:15,674 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:13:15,675 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:13:15,676 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:13:15,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:13:15,677 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:13:15,677 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:13:15,678 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:13:15,679 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:13:15,679 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:13:15,679 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:13:15,701 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:13:15,701 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:13:15,702 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:13:15,702 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:13:15,703 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:13:15,703 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:13:15,703 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:13:15,703 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:13:15,704 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:13:15,704 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:13:15,704 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:13:15,705 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:13:15,705 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:13:15,705 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:13:15,705 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:13:15,705 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:13:15,706 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:13:15,706 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:13:15,706 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:13:15,706 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:13:15,706 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:13:15,708 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:13:15,708 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:13:15,709 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:13:15,709 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:13:15,709 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:13:15,709 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:13:15,709 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:13:15,711 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:13:15,711 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c82b80ee1d840c8880cc584253dffda998627af8 [2018-11-28 23:13:15,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:13:15,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:13:15,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:13:15,784 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:13:15,785 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:13:15,786 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Binary_Search_false-termination_true-valid-memsafety.c [2018-11-28 23:13:15,855 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b255534e6/cd02513479664ada8215bf428f1ab4a0/FLAG71cfc69d2 [2018-11-28 23:13:16,346 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:13:16,347 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Binary_Search_false-termination_true-valid-memsafety.c [2018-11-28 23:13:16,354 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b255534e6/cd02513479664ada8215bf428f1ab4a0/FLAG71cfc69d2 [2018-11-28 23:13:16,686 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b255534e6/cd02513479664ada8215bf428f1ab4a0 [2018-11-28 23:13:16,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:13:16,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:13:16,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:13:16,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:13:16,696 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:13:16,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:16,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15cb709d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16, skipping insertion in model container [2018-11-28 23:13:16,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:16,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:13:16,726 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:13:16,945 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:13:16,952 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:13:16,978 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:13:16,997 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:13:16,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16 WrapperNode [2018-11-28 23:13:16,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:13:16,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:13:16,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:13:16,999 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:13:17,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:13:17,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:13:17,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:13:17,046 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:13:17,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (1/1) ... [2018-11-28 23:13:17,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:13:17,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:13:17,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:13:17,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:13:17,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (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 23:13:17,239 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 23:13:17,240 INFO L138 BoogieDeclarations]: Found implementation of procedure bsearch [2018-11-28 23:13:17,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:13:17,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:13:17,527 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:13:17,528 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 23:13:17,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:13:17 BoogieIcfgContainer [2018-11-28 23:13:17,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:13:17,531 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:13:17,531 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:13:17,536 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:13:17,537 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:13:17,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:13:16" (1/3) ... [2018-11-28 23:13:17,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39835134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:13:17, skipping insertion in model container [2018-11-28 23:13:17,539 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:13:17,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:16" (2/3) ... [2018-11-28 23:13:17,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39835134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:13:17, skipping insertion in model container [2018-11-28 23:13:17,540 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:13:17,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:13:17" (3/3) ... [2018-11-28 23:13:17,548 INFO L375 chiAutomizerObserver]: Analyzing ICFG Binary_Search_false-termination_true-valid-memsafety.c [2018-11-28 23:13:17,647 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:13:17,648 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:13:17,648 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:13:17,648 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:13:17,648 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:13:17,648 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:13:17,649 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:13:17,649 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:13:17,649 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:13:17,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-28 23:13:17,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 23:13:17,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:13:17,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:13:17,720 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 23:13:17,720 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 23:13:17,720 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:13:17,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-28 23:13:17,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 23:13:17,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:13:17,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:13:17,724 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 23:13:17,724 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 23:13:17,735 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 10#L22true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 11#L23true assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 16#L24true call main_#t~ret5 := bsearch(main_~x~0, main_~y~0);< 14#bsearchENTRYtrue [2018-11-28 23:13:17,735 INFO L796 eck$LassoCheckResult]: Loop: 14#bsearchENTRYtrue ~i := #in~i;~j := #in~j; 6#L10true assume !(~i >= ~j);~mid~0 := (if ~i + ~j < 0 && 0 != (~i + ~j) % 2 then 1 + (~i + ~j) / 2 else (~i + ~j) / 2); 3#L12true assume 0 != #t~nondet0;havoc #t~nondet0; 18#L13true call #t~ret1 := bsearch(~i, ~mid~0);< 14#bsearchENTRYtrue [2018-11-28 23:13:17,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:13:17,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1390416, now seen corresponding path program 1 times [2018-11-28 23:13:17,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:13:17,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:13:17,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:17,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:13:17,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:17,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:13:17,869 INFO L82 PathProgramCache]: Analyzing trace with hash 927613, now seen corresponding path program 1 times [2018-11-28 23:13:17,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:13:17,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:13:17,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:17,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:13:17,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:17,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:13:17,905 INFO L82 PathProgramCache]: Analyzing trace with hash -116842676, now seen corresponding path program 1 times [2018-11-28 23:13:17,905 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:13:17,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:13:17,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:17,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:13:17,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:18,435 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-28 23:13:18,604 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-28 23:13:18,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:13:18 BoogieIcfgContainer [2018-11-28 23:13:18,712 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:13:18,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:13:18,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:13:18,713 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:13:18,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:13:17" (3/4) ... [2018-11-28 23:13:18,719 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:13:18,768 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:13:18,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:13:18,770 INFO L168 Benchmark]: Toolchain (without parser) took 2079.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -113.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:13:18,771 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-11-28 23:13:18,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.71 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:13:18,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.23 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:13:18,774 INFO L168 Benchmark]: Boogie Preprocessor took 29.77 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:13:18,775 INFO L168 Benchmark]: RCFGBuilder took 453.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:13:18,776 INFO L168 Benchmark]: BuchiAutomizer took 1181.87 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: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:13:18,777 INFO L168 Benchmark]: Witness Printer took 55.98 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:13:18,783 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 305.71 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.23 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.77 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 453.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1181.87 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: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * Witness Printer took 55.98 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 8]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\old(j)=0, \result=0, \result=0, \old(i)=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3eac9a52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aba830a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c1838fc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2533d88a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f705484=0, NULL=0, i=0, mid=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@387c94bf=5, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 8]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L19] int x = __VERIFIER_nondet_int(); [L20] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(-1073741823<=x && x<=1073741823)) [L23] COND FALSE !(!(-1073741823<=y && y<=1073741823)) [L24] CALL bsearch(x, y) Loop: [L10] COND FALSE !(i>=j) [L11] int mid = (i+j)/2; [L12] COND TRUE __VERIFIER_nondet_int() [L13] CALL bsearch(i,mid) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...