./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Binary_Search-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/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/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Binary_Search-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e9bc34da83f4eeeb9eac38365b588592722a41bf ................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:29:04,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:29:04,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:29:04,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:29:04,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:29:04,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:29:04,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:29:04,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:29:04,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:29:04,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:29:04,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:29:04,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:29:04,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:29:04,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:29:04,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:29:04,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:29:04,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:29:04,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:29:04,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:29:04,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:29:04,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:29:04,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:29:04,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:29:04,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:29:04,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:29:04,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:29:04,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:29:04,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:29:04,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:29:04,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:29:04,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:29:04,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:29:04,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:29:04,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:29:04,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:29:04,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:29:04,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:29:04,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:29:04,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:29:04,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:29:04,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:29:04,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:29:04,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:29:04,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:29:04,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:29:04,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:29:04,824 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:29:04,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:29:04,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:29:04,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:29:04,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:29:04,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:29:04,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:29:04,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:29:04,827 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:29:04,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:29:04,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:29:04,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:29:04,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:29:04,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:29:04,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:29:04,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:29:04,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:29:04,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:29:04,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:29:04,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:29:04,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:29:04,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:29:04,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:29:04,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:29:04,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(G ! overflow) ) 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 -> e9bc34da83f4eeeb9eac38365b588592722a41bf [2020-10-19 18:29:05,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:29:05,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:29:05,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:29:05,182 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:29:05,189 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:29:05,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Binary_Search-1.c [2020-10-19 18:29:05,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab8f8a27/880105450b5d433e9e17f471ff3103a2/FLAGe03837716 [2020-10-19 18:29:05,618 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:29:05,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Binary_Search-1.c [2020-10-19 18:29:05,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab8f8a27/880105450b5d433e9e17f471ff3103a2/FLAGe03837716 [2020-10-19 18:29:05,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab8f8a27/880105450b5d433e9e17f471ff3103a2 [2020-10-19 18:29:05,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:29:06,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:29:06,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:29:06,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:29:06,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:29:06,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:29:05" (1/1) ... [2020-10-19 18:29:06,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7bdc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06, skipping insertion in model container [2020-10-19 18:29:06,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:29:05" (1/1) ... [2020-10-19 18:29:06,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:29:06,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:29:06,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:29:06,198 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:29:06,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:29:06,224 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:29:06,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06 WrapperNode [2020-10-19 18:29:06,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:29:06,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:29:06,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:29:06,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:29:06,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:29:06,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:29:06,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:29:06,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:29:06,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (1/1) ... [2020-10-19 18:29:06,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:29:06,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:29:06,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:29:06,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:29:06,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:29:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:29:06,413 INFO L138 BoogieDeclarations]: Found implementation of procedure bsearch [2020-10-19 18:29:06,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:29:06,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:29:06,638 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:29:06,639 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-19 18:29:06,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:06 BoogieIcfgContainer [2020-10-19 18:29:06,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:29:06,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:29:06,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:29:06,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:29:06,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:29:05" (1/3) ... [2020-10-19 18:29:06,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a778310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:29:06, skipping insertion in model container [2020-10-19 18:29:06,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:29:06" (2/3) ... [2020-10-19 18:29:06,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a778310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:29:06, skipping insertion in model container [2020-10-19 18:29:06,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:06" (3/3) ... [2020-10-19 18:29:06,650 INFO L111 eAbstractionObserver]: Analyzing ICFG Binary_Search-1.c [2020-10-19 18:29:06,662 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:29:06,670 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-19 18:29:06,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-19 18:29:06,724 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:29:06,725 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:29:06,725 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:29:06,725 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:29:06,725 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:29:06,726 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:29:06,726 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:29:06,726 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:29:06,748 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-19 18:29:06,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:29:06,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:29:06,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:29:06,756 INFO L429 AbstractCegarLoop]: === Iteration 1 === [bsearchErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, bsearchErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bsearchErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, bsearchErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, bsearchErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, bsearchErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:29:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:29:06,764 INFO L82 PathProgramCache]: Analyzing trace with hash 54666614, now seen corresponding path program 1 times [2020-10-19 18:29:06,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:29:06,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67268921] [2020-10-19 18:29:06,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:29:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:29:06,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:29:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:29:06,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:29:06,928 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:29:06,929 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:29:06,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:29:06,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:29:06 BoogieIcfgContainer [2020-10-19 18:29:06,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:29:06,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:29:06,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:29:06,955 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:29:06,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:29:06" (3/4) ... [2020-10-19 18:29:06,958 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:29:07,002 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:29:07,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:29:07,005 INFO L168 Benchmark]: Toolchain (without parser) took 1007.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -130.1 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:07,006 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:29:07,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.00 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:07,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.70 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:29:07,008 INFO L168 Benchmark]: Boogie Preprocessor took 81.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:07,009 INFO L168 Benchmark]: RCFGBuilder took 291.84 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:07,010 INFO L168 Benchmark]: TraceAbstraction took 311.55 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:07,011 INFO L168 Benchmark]: Witness Printer took 48.20 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:29:07,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 222.00 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.70 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 291.84 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 311.55 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 48.20 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: integer overflow possible integer overflow possible We found a FailurePath: [L19] int x = __VERIFIER_nondet_int(); [L20] int y = __VERIFIER_nondet_int(); [L21] CALL bsearch(x, y) VAL [\old(i)=1, \old(j)=2147483647] [L10] COND FALSE !(i>=j) VAL [\old(i)=1, \old(j)=2147483647, i=1, j=2147483647] [L11] i+j VAL [\old(i)=1, \old(j)=2147483647, i=1, j=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...