./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 0ed9222f 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 0.1.24-0ed9222-m [2019-01-14 02:14:10,606 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:14:10,607 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:14:10,619 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:14:10,620 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:14:10,621 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:14:10,623 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:14:10,625 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:14:10,628 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:14:10,631 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:14:10,634 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:14:10,635 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:14:10,636 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:14:10,639 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:14:10,641 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:14:10,641 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:14:10,642 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:14:10,644 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:14:10,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:14:10,648 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:14:10,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:14:10,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:14:10,654 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:14:10,654 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:14:10,654 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:14:10,655 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:14:10,657 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:14:10,658 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:14:10,658 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:14:10,660 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:14:10,660 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:14:10,661 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:14:10,661 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:14:10,661 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:14:10,665 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:14:10,666 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:14:10,666 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:14:10,699 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:14:10,701 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:14:10,703 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:14:10,703 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:14:10,703 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:14:10,703 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:14:10,705 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:14:10,706 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:14:10,706 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:14:10,706 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:14:10,706 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:14:10,706 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:14:10,707 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:14:10,708 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:14:10,709 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:14:10,709 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:14:10,709 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:14:10,709 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:14:10,709 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:14:10,709 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:14:10,710 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:14:10,713 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:14:10,713 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:14:10,713 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:14:10,714 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:14:10,714 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:14:10,714 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:14:10,714 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:14:10,720 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:14:10,721 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 [2019-01-14 02:14:10,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:14:10,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:14:10,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:14:10,809 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:14:10,810 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:14:10,811 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Binary_Search_false-termination_true-valid-memsafety.c [2019-01-14 02:14:10,871 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de4d6ffc1/082515bd2d114e50b740584fdc94e39e/FLAG6b083b468 [2019-01-14 02:14:11,272 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:14:11,273 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Binary_Search_false-termination_true-valid-memsafety.c [2019-01-14 02:14:11,281 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de4d6ffc1/082515bd2d114e50b740584fdc94e39e/FLAG6b083b468 [2019-01-14 02:14:11,639 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de4d6ffc1/082515bd2d114e50b740584fdc94e39e [2019-01-14 02:14:11,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:14:11,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:14:11,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:11,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:14:11,650 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:14:11,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104d3319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11, skipping insertion in model container [2019-01-14 02:14:11,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:14:11,679 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:14:11,855 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:11,861 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:14:11,879 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:11,896 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:14:11,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11 WrapperNode [2019-01-14 02:14:11,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:11,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:11,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:14:11,898 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:14:11,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:11,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:14:11,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:14:11,942 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:14:11,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:14:11,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:14:11,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:14:11,970 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:14:11,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (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 [2019-01-14 02:14:12,103 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-14 02:14:12,103 INFO L138 BoogieDeclarations]: Found implementation of procedure bsearch [2019-01-14 02:14:12,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:14:12,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:14:12,357 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:14:12,357 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 02:14:12,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:12 BoogieIcfgContainer [2019-01-14 02:14:12,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:14:12,361 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:14:12,361 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:14:12,366 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:14:12,367 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,367 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:14:11" (1/3) ... [2019-01-14 02:14:12,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@633fa9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:14:12, skipping insertion in model container [2019-01-14 02:14:12,369 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (2/3) ... [2019-01-14 02:14:12,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@633fa9ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:14:12, skipping insertion in model container [2019-01-14 02:14:12,370 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:12" (3/3) ... [2019-01-14 02:14:12,374 INFO L375 chiAutomizerObserver]: Analyzing ICFG Binary_Search_false-termination_true-valid-memsafety.c [2019-01-14 02:14:12,457 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:14:12,458 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:14:12,458 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:14:12,458 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:14:12,458 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:14:12,458 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:14:12,458 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:14:12,459 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:14:12,459 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:14:12,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-01-14 02:14:12,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-01-14 02:14:12,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:12,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:12,527 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-14 02:14:12,527 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-14 02:14:12,527 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:14:12,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-01-14 02:14:12,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-01-14 02:14:12,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:12,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:12,530 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-14 02:14:12,530 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-01-14 02:14:12,537 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 10#L22true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 11#L23true assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 16#L24true call main_#t~ret5 := bsearch(main_~x~0, main_~y~0);< 14#bsearchENTRYtrue [2019-01-14 02:14:12,538 INFO L796 eck$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 [2019-01-14 02:14:12,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1390416, now seen corresponding path program 1 times [2019-01-14 02:14:12,544 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,654 INFO L82 PathProgramCache]: Analyzing trace with hash 927613, now seen corresponding path program 1 times [2019-01-14 02:14:12,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,701 INFO L82 PathProgramCache]: Analyzing trace with hash -116842676, now seen corresponding path program 1 times [2019-01-14 02:14:12,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:13,226 WARN L181 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-01-14 02:14:13,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:14:13 BoogieIcfgContainer [2019-01-14 02:14:13,466 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:14:13,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:14:13,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:14:13,468 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:14:13,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:12" (3/4) ... [2019-01-14 02:14:13,473 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 02:14:13,516 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 02:14:13,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:14:13,517 INFO L168 Benchmark]: Toolchain (without parser) took 1873.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -90.3 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,519 INFO L168 Benchmark]: CDTParser took 0.34 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. [2019-01-14 02:14:13,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.68 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:13,521 INFO L168 Benchmark]: Boogie Preprocessor took 28.27 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:13,521 INFO L168 Benchmark]: RCFGBuilder took 389.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,522 INFO L168 Benchmark]: BuchiAutomizer took 1105.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,523 INFO L168 Benchmark]: Witness Printer took 49.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,528 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 250.68 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 43.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.27 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 389.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1105.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Witness Printer took 49.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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@430ec777=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32a3aca1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e6461b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3eedf769=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e560121=0, NULL=0, i=0, mid=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@655455ed=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...