./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-acceleration/simple_false-unreach-call3_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-acceleration/simple_false-unreach-call3_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9bb3ecce8212cfd5509d99ad6349aec861975be9 .................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 17:19:25,908 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:19:25,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:19:25,921 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:19:25,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:19:25,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:19:25,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:19:25,926 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:19:25,928 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:19:25,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:19:25,930 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:19:25,930 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:19:25,931 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:19:25,933 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:19:25,934 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:19:25,934 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:19:25,935 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:19:25,937 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:19:25,940 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:19:25,941 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:19:25,943 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:19:25,944 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:19:25,946 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:19:25,950 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:19:25,950 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:19:25,951 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:19:25,952 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:19:25,953 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:19:25,956 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:19:25,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:19:25,958 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:19:25,960 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:19:25,960 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:19:25,960 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:19:25,963 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:19:25,964 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:19:25,965 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:19:25,993 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:19:25,994 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:19:25,996 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:19:25,999 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:19:25,999 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:19:25,999 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:19:25,999 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:19:26,000 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:19:26,000 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:19:26,000 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:19:26,000 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:19:26,000 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:19:26,000 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:19:26,001 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:19:26,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:19:26,003 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:19:26,003 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:19:26,003 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:19:26,003 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:19:26,003 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:19:26,004 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:19:26,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:19:26,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:19:26,006 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:19:26,007 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:19:26,007 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:19:26,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:19:26,007 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bb3ecce8212cfd5509d99ad6349aec861975be9 [2019-01-14 17:19:26,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:19:26,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:19:26,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:19:26,094 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:19:26,094 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:19:26,095 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-acceleration/simple_false-unreach-call3_true-termination.i [2019-01-14 17:19:26,152 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f66fe43/b40df7cfec494a81895d9fb30f39e03d/FLAGd0acc2e43 [2019-01-14 17:19:26,571 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:19:26,572 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-acceleration/simple_false-unreach-call3_true-termination.i [2019-01-14 17:19:26,578 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f66fe43/b40df7cfec494a81895d9fb30f39e03d/FLAGd0acc2e43 [2019-01-14 17:19:26,971 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f66fe43/b40df7cfec494a81895d9fb30f39e03d [2019-01-14 17:19:26,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:19:26,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:19:26,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:19:26,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:19:26,981 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:19:26,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:19:26" (1/1) ... [2019-01-14 17:19:26,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d04184c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:26, skipping insertion in model container [2019-01-14 17:19:26,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:19:26" (1/1) ... [2019-01-14 17:19:26,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:19:27,010 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:19:27,193 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:19:27,198 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:19:27,213 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:19:27,228 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:19:27,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27 WrapperNode [2019-01-14 17:19:27,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:19:27,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:19:27,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:19:27,230 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:19:27,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:19:27,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:19:27,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:19:27,265 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:19:27,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (1/1) ... [2019-01-14 17:19:27,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:19:27,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:19:27,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:19:27,286 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:19:27,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (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 [2019-01-14 17:19:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:19:27,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:19:27,665 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:19:27,665 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 17:19:27,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:19:27 BoogieIcfgContainer [2019-01-14 17:19:27,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:19:27,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:19:27,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:19:27,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:19:27,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:19:26" (1/3) ... [2019-01-14 17:19:27,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c8a225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:19:27, skipping insertion in model container [2019-01-14 17:19:27,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:27" (2/3) ... [2019-01-14 17:19:27,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c8a225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:19:27, skipping insertion in model container [2019-01-14 17:19:27,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:19:27" (3/3) ... [2019-01-14 17:19:27,674 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_false-unreach-call3_true-termination.i [2019-01-14 17:19:27,683 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:19:27,690 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:19:27,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:19:27,732 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:19:27,733 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:19:27,733 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:19:27,733 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:19:27,733 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:19:27,733 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:19:27,733 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:19:27,733 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:19:27,734 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:19:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-01-14 17:19:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 17:19:27,755 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:19:27,756 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 17:19:27,759 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:19:27,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:19:27,766 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-01-14 17:19:27,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:19:27,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:19:27,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:27,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:19:27,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 17:19:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 17:19:27,920 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 17:19:27,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:19:27 BoogieIcfgContainer [2019-01-14 17:19:27,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:19:27,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:19:27,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:19:27,936 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:19:27,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:19:27" (3/4) ... [2019-01-14 17:19:27,939 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 17:19:27,979 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:19:27,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:19:27,980 INFO L168 Benchmark]: Toolchain (without parser) took 1004.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:19:27,982 INFO L168 Benchmark]: CDTParser took 0.15 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 17:19:27,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.43 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:19:27,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.16 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:19:27,985 INFO L168 Benchmark]: Boogie Preprocessor took 20.44 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:19:27,985 INFO L168 Benchmark]: RCFGBuilder took 381.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -203.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-14 17:19:27,986 INFO L168 Benchmark]: TraceAbstraction took 267.84 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:19:27,987 INFO L168 Benchmark]: Witness Printer took 43.40 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:19:27,994 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 251.43 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 35.16 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.44 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 381.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -203.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 267.84 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 43.40 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] unsigned int x = 0; [L10] unsigned short N; [L11] COND FALSE !(x < N) [L3] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 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, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...